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1192 lines
79 KiB
1192 lines
79 KiB
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<!DOCTYPE html>
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<!--[if IE 8]><html class="no-js lt-ie9" lang="en" > <![endif]-->
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<head>
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<meta charset="utf-8">
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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Input Class — CodeIgniter 3.1.4 documentation</title>
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<link rel="shortcut icon" href="../_static/ci-icon.ico"/>
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<link rel="stylesheet" href="../_static/css/citheme.css" type="text/css" />
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<link rel="top" title="CodeIgniter 3.1.4 documentation" href="../index.html"/>
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<link rel="up" title="Libraries" href="index.html"/>
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<link rel="next" title="Javascript Class" href="javascript.html"/>
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<link rel="prev" title="Image Manipulation Class" href="image_lib.html"/>
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<script src="https://cdnjs.cloudflare.com/ajax/libs/modernizr/2.6.2/modernizr.min.js"></script>
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<li class="toctree-l1"><a class="reference internal" href="../general/welcome.html">Welcome to CodeIgniter</a><ul class="simple">
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<li class="toctree-l1"><a class="reference internal" href="../installation/index.html">Installation Instructions</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../installation/downloads.html">Downloading CodeIgniter</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/index.html">Installation Instructions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/upgrading.html">Upgrading From a Previous Version</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../installation/troubleshooting.html">Troubleshooting</a></li>
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<li class="toctree-l1"><a class="reference internal" href="../overview/index.html">CodeIgniter Overview</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../overview/getting_started.html">Getting Started</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/at_a_glance.html">CodeIgniter at a Glance</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/features.html">Supported Features</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/appflow.html">Application Flow Chart</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/mvc.html">Model-View-Controller</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../overview/goals.html">Architectural Goals</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../tutorial/index.html">Tutorial</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/create_news_items.html">Create news items</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../tutorial/conclusion.html">Conclusion</a></li>
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</ul>
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<li class="toctree-l1"><a class="reference internal" href="../contributing/index.html">Contributing to CodeIgniter</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../documentation/index.html">Writing CodeIgniter Documentation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../DCO.html">Developer’s Certificate of Origin 1.1</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../general/index.html">General Topics</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../general/urls.html">CodeIgniter URLs</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/controllers.html">Controllers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/reserved_names.html">Reserved Names</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/views.html">Views</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/models.html">Models</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/helpers.html">Helpers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/libraries.html">Using CodeIgniter Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_libraries.html">Creating Libraries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/drivers.html">Using CodeIgniter Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/creating_drivers.html">Creating Drivers</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/core_classes.html">Creating Core System Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/ancillary_classes.html">Creating Ancillary Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/hooks.html">Hooks - Extending the Framework Core</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/autoloader.html">Auto-loading Resources</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/common_functions.html">Common Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/compatibility_functions.html">Compatibility Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/routing.html">URI Routing</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/errors.html">Error Handling</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/caching.html">Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/profiling.html">Profiling Your Application</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/cli.html">Running via the CLI</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/managing_apps.html">Managing your Applications</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/environments.html">Handling Multiple Environments</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/alternative_php.html">Alternate PHP Syntax for View Files</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/security.html">Security</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../general/styleguide.html">PHP Style Guide</a></li>
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</ul>
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</li>
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</ul>
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<ul class="current">
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<li class="toctree-l1 current"><a class="reference internal" href="index.html">Libraries</a><ul class="current">
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<li class="toctree-l2"><a class="reference internal" href="benchmark.html">Benchmarking Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="caching.html">Caching Driver</a></li>
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<li class="toctree-l2"><a class="reference internal" href="calendar.html">Calendaring Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="cart.html">Shopping Cart Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="config.html">Config Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="email.html">Email Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encrypt.html">Encrypt Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="encryption.html">Encryption Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="file_uploading.html">File Uploading Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="form_validation.html">Form Validation</a></li>
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<li class="toctree-l2"><a class="reference internal" href="ftp.html">FTP Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="image_lib.html">Image Manipulation Class</a></li>
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<li class="toctree-l2 current"><a class="current reference internal" href="">Input Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="javascript.html">Javascript Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="language.html">Language Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="loader.html">Loader Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="migration.html">Migrations Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="output.html">Output Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="pagination.html">Pagination Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="parser.html">Template Parser Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="security.html">Security Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="sessions.html">Session Library</a></li>
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<li class="toctree-l2"><a class="reference internal" href="table.html">HTML Table Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="trackback.html">Trackback Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="typography.html">Typography Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="unit_testing.html">Unit Testing Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="uri.html">URI Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="user_agent.html">User Agent Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="xmlrpc.html">XML-RPC and XML-RPC Server Classes</a></li>
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<li class="toctree-l2"><a class="reference internal" href="zip.html">Zip Encoding Class</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../database/index.html">Database Reference</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../database/examples.html">Quick Start: Usage Examples</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/configuration.html">Database Configuration</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/connecting.html">Connecting to a Database</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/queries.html">Running Queries</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/results.html">Generating Query Results</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/helpers.html">Query Helper Functions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/query_builder.html">Query Builder Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/transactions.html">Transactions</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/metadata.html">Getting MetaData</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/call_function.html">Custom Function Calls</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/caching.html">Query Caching</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/forge.html">Database Manipulation with Database Forge</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/utilities.html">Database Utilities Class</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../database/db_driver_reference.html">Database Driver Reference</a></li>
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</ul>
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</li>
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</ul>
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<ul>
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<li class="toctree-l1"><a class="reference internal" href="../helpers/index.html">Helpers</a><ul>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/array_helper.html">Array Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/captcha_helper.html">CAPTCHA Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/cookie_helper.html">Cookie Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/date_helper.html">Date Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/directory_helper.html">Directory Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/download_helper.html">Download Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/email_helper.html">Email Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/file_helper.html">File Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/form_helper.html">Form Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/html_helper.html">HTML Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/inflector_helper.html">Inflector Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/language_helper.html">Language Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/number_helper.html">Number Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/path_helper.html">Path Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/security_helper.html">Security Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/smiley_helper.html">Smiley Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/string_helper.html">String Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/text_helper.html">Text Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/typography_helper.html">Typography Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/url_helper.html">URL Helper</a></li>
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<li class="toctree-l2"><a class="reference internal" href="../helpers/xml_helper.html">XML Helper</a></li>
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</ul>
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</li>
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</ul>
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</div>
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</div>
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<div class="section" id="input-class">
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<h1>Input Class<a class="headerlink" href="#input-class" title="Permalink to this headline">¶</a></h1>
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<p>The Input Class serves two purposes:</p>
|
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<ol class="arabic simple">
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<li>It pre-processes global input data for security.</li>
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<li>It provides some helper methods for fetching input data and pre-processing it.</li>
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</ol>
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<div class="admonition note">
|
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<p class="first admonition-title">Note</p>
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<p class="last">This class is initialized automatically by the system so there
|
|
is no need to do it manually.</p>
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</div>
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<div class="contents local topic" id="contents">
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<ul class="simple">
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<li><a class="reference internal" href="#input-filtering" id="id1">Input Filtering</a><ul>
|
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<li><a class="reference internal" href="#security-filtering" id="id2">Security Filtering</a></li>
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<li><a class="reference internal" href="#xss-filtering" id="id3">XSS Filtering</a></li>
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</ul>
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</li>
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<li><a class="reference internal" href="#accessing-form-data" id="id4">Accessing form data</a><ul>
|
|
<li><a class="reference internal" href="#using-post-get-cookie-or-server-data" id="id5">Using POST, GET, COOKIE, or SERVER Data</a></li>
|
|
<li><a class="reference internal" href="#using-the-php-input-stream" id="id6">Using the php://input stream</a></li>
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</ul>
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</li>
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<li><a class="reference internal" href="#class-reference" id="id7">Class Reference</a></li>
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</ul>
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</div>
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<div class="custom-index container"></div><div class="section" id="input-filtering">
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<h2><a class="toc-backref" href="#id1">Input Filtering</a><a class="headerlink" href="#input-filtering" title="Permalink to this headline">¶</a></h2>
|
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<div class="section" id="security-filtering">
|
|
<h3><a class="toc-backref" href="#id2">Security Filtering</a><a class="headerlink" href="#security-filtering" title="Permalink to this headline">¶</a></h3>
|
|
<p>The security filtering method is called automatically when a new
|
|
<a class="reference internal" href="../general/controllers.html"><em>controller</em></a> is invoked. It does the
|
|
following:</p>
|
|
<ul class="simple">
|
|
<li>If <tt class="docutils literal"><span class="pre">$config['allow_get_array']</span></tt> is FALSE (default is TRUE), destroys
|
|
the global GET array.</li>
|
|
<li>Destroys all global variables in the event register_globals is
|
|
turned on.</li>
|
|
<li>Filters the GET/POST/COOKIE array keys, permitting only alpha-numeric
|
|
(and a few other) characters.</li>
|
|
<li>Provides XSS (Cross-site Scripting Hacks) filtering. This can be
|
|
enabled globally, or upon request.</li>
|
|
<li>Standardizes newline characters to <tt class="docutils literal"><span class="pre">PHP_EOL</span></tt> (\n in UNIX-based OSes,
|
|
\r\n under Windows). This is configurable.</li>
|
|
</ul>
|
|
</div>
|
|
<div class="section" id="xss-filtering">
|
|
<h3><a class="toc-backref" href="#id3">XSS Filtering</a><a class="headerlink" href="#xss-filtering" title="Permalink to this headline">¶</a></h3>
|
|
<p>The Input class has the ability to filter input automatically to prevent
|
|
cross-site scripting attacks. If you want the filter to run
|
|
automatically every time it encounters POST or COOKIE data you can
|
|
enable it by opening your <em>application/config/config.php</em> file and setting
|
|
this:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$config</span><span class="p">[</span><span class="s1">'global_xss_filtering'</span><span class="p">]</span> <span class="o">=</span> <span class="k">TRUE</span><span class="p">;</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Please refer to the <a class="reference internal" href="security.html"><em>Security class</em></a> documentation for
|
|
information on using XSS Filtering in your application.</p>
|
|
<div class="admonition important">
|
|
<p class="first admonition-title">Important</p>
|
|
<p class="last">The ‘global_xss_filtering’ setting is DEPRECATED and kept
|
|
solely for backwards-compatibility purposes. XSS escaping should
|
|
be performed on <em>output</em>, not <em>input</em>!</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="accessing-form-data">
|
|
<h2><a class="toc-backref" href="#id4">Accessing form data</a><a class="headerlink" href="#accessing-form-data" title="Permalink to this headline">¶</a></h2>
|
|
<div class="section" id="using-post-get-cookie-or-server-data">
|
|
<h3><a class="toc-backref" href="#id5">Using POST, GET, COOKIE, or SERVER Data</a><a class="headerlink" href="#using-post-get-cookie-or-server-data" title="Permalink to this headline">¶</a></h3>
|
|
<p>CodeIgniter comes with helper methods that let you fetch POST, GET,
|
|
COOKIE or SERVER items. The main advantage of using the provided
|
|
methods rather than fetching an item directly (<tt class="docutils literal"><span class="pre">$_POST['something']</span></tt>)
|
|
is that the methods will check to see if the item is set and return
|
|
NULL if not. This lets you conveniently use data without
|
|
having to test whether an item exists first. In other words, normally
|
|
you might do something like this:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$something</span> <span class="o">=</span> <span class="nb">isset</span><span class="p">(</span><span class="nv">$_POST</span><span class="p">[</span><span class="s1">'something'</span><span class="p">])</span> <span class="o">?</span> <span class="nv">$_POST</span><span class="p">[</span><span class="s1">'something'</span><span class="p">]</span> <span class="o">:</span> <span class="k">NULL</span><span class="p">;</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>With CodeIgniter’s built in methods you can simply do this:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$something</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'something'</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>The main methods are:</p>
|
|
<ul class="simple">
|
|
<li><tt class="docutils literal"><span class="pre">$this->input->post()</span></tt></li>
|
|
<li><tt class="docutils literal"><span class="pre">$this->input->get()</span></tt></li>
|
|
<li><tt class="docutils literal"><span class="pre">$this->input->cookie()</span></tt></li>
|
|
<li><tt class="docutils literal"><span class="pre">$this->input->server()</span></tt></li>
|
|
</ul>
|
|
</div>
|
|
<div class="section" id="using-the-php-input-stream">
|
|
<h3><a class="toc-backref" href="#id6">Using the php://input stream</a><a class="headerlink" href="#using-the-php-input-stream" title="Permalink to this headline">¶</a></h3>
|
|
<p>If you want to utilize the PUT, DELETE, PATCH or other exotic request
|
|
methods, they can only be accessed via a special input stream, that
|
|
can only be read once. This isn’t as easy as just reading from e.g.
|
|
the <tt class="docutils literal"><span class="pre">$_POST</span></tt> array, because it will always exist and you can try
|
|
and access multiple variables without caring that you might only have
|
|
one shot at all of the POST data.</p>
|
|
<p>CodeIgniter will take care of that for you, and you can read the data
|
|
from the <strong>php://input</strong> stream at any time, just by using the
|
|
<tt class="docutils literal"><span class="pre">$raw_input_stream</span></tt> property:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">raw_input_stream</span><span class="p">;</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Additionally if the input stream is form-encoded like $_POST you can
|
|
access its values by calling the
|
|
<tt class="docutils literal"><span class="pre">input_stream()</span></tt> method:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Similar to other methods such as <tt class="docutils literal"><span class="pre">get()</span></tt> and <tt class="docutils literal"><span class="pre">post()</span></tt>, if the
|
|
requested data is not found, it will return NULL and you can also
|
|
decide whether to run the data through <tt class="docutils literal"><span class="pre">xss_clean()</span></tt> by passing
|
|
a boolean value as the second parameter:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// XSS Clean</span>
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">input_stream</span><span class="p">(</span><span class="s1">'key'</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// No XSS filter</span>
|
|
</pre></div>
|
|
</div>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">You can utilize <tt class="docutils literal"><span class="pre">method()</span></tt> in order to know if you’re reading
|
|
PUT, DELETE or PATCH data.</p>
|
|
</div>
|
|
</div>
|
|
</div>
|
|
<div class="section" id="class-reference">
|
|
<h2><a class="toc-backref" href="#id7">Class Reference</a><a class="headerlink" href="#class-reference" title="Permalink to this headline">¶</a></h2>
|
|
<dl class="class">
|
|
<dt id="CI_Input">
|
|
<em class="property">class </em><tt class="descname">CI_Input</tt><a class="headerlink" href="#CI_Input" title="Permalink to this definition">¶</a></dt>
|
|
<dd><dl class="attribute">
|
|
<dt>
|
|
<tt class="descname">$raw_input_stream</tt></dt>
|
|
<dd><p>Read only property that will return php://input data as is.</p>
|
|
<p>The property can be read multiple times.</p>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::post">
|
|
<tt class="descname">post</tt><big>(</big><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::post" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>mixed</em>) – POST parameter name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_POST if no parameters supplied, otherwise the POST value if found or NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>The first parameter will contain the name of the POST item you are
|
|
looking for:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>The method returns NULL if the item you are attempting to retrieve
|
|
does not exist.</p>
|
|
<p>The second optional parameter lets you run the data through the XSS
|
|
filter. It’s enabled by setting the second parameter to boolean TRUE
|
|
or by setting your <tt class="docutils literal"><span class="pre">$config['global_xss_filtering']</span></tt> to TRUE.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of all POST items call without any parameters.</p>
|
|
<p>To return all POST items and pass them through the XSS filter set the
|
|
first parameter NULL while setting the second parameter to boolean TRUE.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// returns all POST items with XSS filter</span>
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// returns all POST items without XSS filter</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of multiple POST parameters, pass all the required keys
|
|
as an array.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">));</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Same rule applied here, to retrieve the parameters with XSS filtering enabled, set the
|
|
second parameter to boolean TRUE.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">),</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::get">
|
|
<tt class="descname">get</tt><big>(</big><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::get" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>mixed</em>) – GET parameter name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_GET if no parameters supplied, otherwise the GET value if found or NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method is identical to <tt class="docutils literal"><span class="pre">post()</span></tt>, only it fetches GET data.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of all GET items call without any parameters.</p>
|
|
<p>To return all GET items and pass them through the XSS filter set the
|
|
first parameter NULL while setting the second parameter to boolean TRUE.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span> <span class="c1">// returns all GET items with XSS filter</span>
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">NULL</span><span class="p">,</span> <span class="k">FALSE</span><span class="p">);</span> <span class="c1">// returns all GET items without XSS filtering</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of multiple GET parameters, pass all the required keys
|
|
as an array.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">));</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Same rule applied here, to retrieve the parameters with XSS filtering enabled, set the
|
|
second parameter to boolean TRUE.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'field1'</span><span class="p">,</span> <span class="s1">'field2'</span><span class="p">),</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::post_get">
|
|
<tt class="descname">post_get</tt><big>(</big><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::post_get" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>string</em>) – POST/GET parameter name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">POST/GET value if found, NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method works pretty much the same way as <tt class="docutils literal"><span class="pre">post()</span></tt> and <tt class="docutils literal"><span class="pre">get()</span></tt>,
|
|
only combined. It will search through both POST and GET streams for data,
|
|
looking in POST first, and then in GET:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">post_get</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::get_post">
|
|
<tt class="descname">get_post</tt><big>(</big><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::get_post" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>string</em>) – GET/POST parameter name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">GET/POST value if found, NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method works the same way as <tt class="docutils literal"><span class="pre">post_get()</span></tt> only it looks for GET
|
|
data first.</p>
|
|
<blockquote>
|
|
<div>$this->input->get_post(‘some_data’, TRUE);</div></blockquote>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">This method used to act EXACTLY like <tt class="docutils literal"><span class="pre">post_get()</span></tt>, but it’s
|
|
behavior has changed in CodeIgniter 3.0.</p>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::cookie">
|
|
<tt class="descname">cookie</tt><big>(</big><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::cookie" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>mixed</em>) – COOKIE name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_COOKIE if no parameters supplied, otherwise the COOKIE value if found or NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method is identical to <tt class="docutils literal"><span class="pre">post()</span></tt> and <tt class="docutils literal"><span class="pre">get()</span></tt>, only it fetches cookie
|
|
data:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span>$this->input->cookie('some_cookie');
|
|
$this->input->cookie('some_cookie, TRUE); // with XSS filter
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of multiple cookie values, pass all the required keys
|
|
as an array.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">cookie</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'some_cookie'</span><span class="p">,</span> <span class="s1">'some_cookie2'</span><span class="p">));</span>
|
|
</pre></div>
|
|
</div>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">Unlike the <a class="reference internal" href="../helpers/cookie_helper.html"><em>Cookie Helper</em></a>
|
|
function <a class="reference internal" href="../helpers/cookie_helper.html#get_cookie" title="get_cookie"><tt class="xref php php-func docutils literal"><span class="pre">get_cookie()</span></tt></a>, this method does NOT prepend
|
|
your configured <tt class="docutils literal"><span class="pre">$config['cookie_prefix']</span></tt> value.</p>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::server">
|
|
<tt class="descname">server</tt><big>(</big><em>$index</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::server" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>mixed</em>) – Value name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">$_SERVER item value if found, NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method is identical to the <tt class="docutils literal"><span class="pre">post()</span></tt>, <tt class="docutils literal"><span class="pre">get()</span></tt> and <tt class="docutils literal"><span class="pre">cookie()</span></tt>
|
|
methods, only it fetches server data (<tt class="docutils literal"><span class="pre">$_SERVER</span></tt>):</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="s1">'some_data'</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>To return an array of multiple <tt class="docutils literal"><span class="pre">$_SERVER</span></tt> values, pass all the required keys
|
|
as an array.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">server</span><span class="p">(</span><span class="k">array</span><span class="p">(</span><span class="s1">'SERVER_PROTOCOL'</span><span class="p">,</span> <span class="s1">'REQUEST_URI'</span><span class="p">));</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::input_stream">
|
|
<tt class="descname">input_stream</tt><big>(</big><span class="optional">[</span><em>$index = NULL</em><span class="optional">[</span>, <em>$xss_clean = NULL</em><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::input_stream" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>mixed</em>) – Key name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">Input stream array if no parameters supplied, otherwise the specified value if found or NULL if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>This method is identical to <tt class="docutils literal"><span class="pre">get()</span></tt>, <tt class="docutils literal"><span class="pre">post()</span></tt> and <tt class="docutils literal"><span class="pre">cookie()</span></tt>,
|
|
only it fetches the <em>php://input</em> stream data.</p>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::set_cookie">
|
|
<tt class="descname">set_cookie</tt><big>(</big><em>$name = ''</em><span class="optional">[</span>, <em>$value = ''</em><span class="optional">[</span>, <em>$expire = ''</em><span class="optional">[</span>, <em>$domain = ''</em><span class="optional">[</span>, <em>$path = '/'</em><span class="optional">[</span>, <em>$prefix = ''</em><span class="optional">[</span>, <em>$secure = NULL</em><span class="optional">[</span>, <em>$httponly = NULL</em><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::set_cookie" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$name</strong> (<em>mixed</em>) – Cookie name or an array of parameters</li>
|
|
<li><strong>$value</strong> (<em>string</em>) – Cookie value</li>
|
|
<li><strong>$expire</strong> (<em>int</em>) – Cookie expiration time in seconds</li>
|
|
<li><strong>$domain</strong> (<em>string</em>) – Cookie domain</li>
|
|
<li><strong>$path</strong> (<em>string</em>) – Cookie path</li>
|
|
<li><strong>$prefix</strong> (<em>string</em>) – Cookie name prefix</li>
|
|
<li><strong>$secure</strong> (<em>bool</em>) – Whether to only transfer the cookie through HTTPS</li>
|
|
<li><strong>$httponly</strong> (<em>bool</em>) – Whether to only make the cookie accessible for HTTP requests (no JavaScript)</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">void</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Sets a cookie containing the values you specify. There are two ways to
|
|
pass information to this method so that a cookie can be set: Array
|
|
Method, and Discrete Parameters:</p>
|
|
<p><strong>Array Method</strong></p>
|
|
<p>Using this method, an associative array is passed to the first
|
|
parameter:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$cookie</span> <span class="o">=</span> <span class="k">array</span><span class="p">(</span>
|
|
<span class="s1">'name'</span> <span class="o">=></span> <span class="s1">'The Cookie Name'</span><span class="p">,</span>
|
|
<span class="s1">'value'</span> <span class="o">=></span> <span class="s1">'The Value'</span><span class="p">,</span>
|
|
<span class="s1">'expire'</span> <span class="o">=></span> <span class="s1">'86500'</span><span class="p">,</span>
|
|
<span class="s1">'domain'</span> <span class="o">=></span> <span class="s1">'.some-domain.com'</span><span class="p">,</span>
|
|
<span class="s1">'path'</span> <span class="o">=></span> <span class="s1">'/'</span><span class="p">,</span>
|
|
<span class="s1">'prefix'</span> <span class="o">=></span> <span class="s1">'myprefix_'</span><span class="p">,</span>
|
|
<span class="s1">'secure'</span> <span class="o">=></span> <span class="k">TRUE</span>
|
|
<span class="p">);</span>
|
|
|
|
<span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">set_cookie</span><span class="p">(</span><span class="nv">$cookie</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
<p><strong>Notes</strong></p>
|
|
<p>Only the name and value are required. To delete a cookie set it with the
|
|
expiration blank.</p>
|
|
<p>The expiration is set in <strong>seconds</strong>, which will be added to the current
|
|
time. Do not include the time, but rather only the number of seconds
|
|
from <em>now</em> that you wish the cookie to be valid. If the expiration is
|
|
set to zero the cookie will only last as long as the browser is open.</p>
|
|
<p>For site-wide cookies regardless of how your site is requested, add your
|
|
URL to the <strong>domain</strong> starting with a period, like this:
|
|
.your-domain.com</p>
|
|
<p>The path is usually not needed since the method sets a root path.</p>
|
|
<p>The prefix is only needed if you need to avoid name collisions with
|
|
other identically named cookies for your server.</p>
|
|
<p>The <em>httponly</em> and <em>secure</em> flags, when omitted, will default to your
|
|
<tt class="docutils literal"><span class="pre">$config['cookie_httponly']</span></tt> and <tt class="docutils literal"><span class="pre">$config['cookie_secure']</span></tt> settings.</p>
|
|
<p><strong>Discrete Parameters</strong></p>
|
|
<p>If you prefer, you can set the cookie by passing data using individual
|
|
parameters:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">set_cookie</span><span class="p">(</span><span class="nv">$name</span><span class="p">,</span> <span class="nv">$value</span><span class="p">,</span> <span class="nv">$expire</span><span class="p">,</span> <span class="nv">$domain</span><span class="p">,</span> <span class="nv">$path</span><span class="p">,</span> <span class="nv">$prefix</span><span class="p">,</span> <span class="nv">$secure</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::ip_address">
|
|
<tt class="descname">ip_address</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Input::ip_address" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">Visitor’s IP address or ‘0.0.0.0’ if not valid</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">string</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Returns the IP address for the current user. If the IP address is not
|
|
valid, the method will return ‘0.0.0.0’:</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">ip_address</span><span class="p">();</span>
|
|
</pre></div>
|
|
</div>
|
|
<div class="admonition important">
|
|
<p class="first admonition-title">Important</p>
|
|
<p class="last">This method takes into account the <tt class="docutils literal"><span class="pre">$config['proxy_ips']</span></tt>
|
|
setting and will return the reported HTTP_X_FORWARDED_FOR,
|
|
HTTP_CLIENT_IP, HTTP_X_CLIENT_IP or HTTP_X_CLUSTER_CLIENT_IP
|
|
address for the allowed IP addresses.</p>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::valid_ip">
|
|
<tt class="descname">valid_ip</tt><big>(</big><em>$ip</em><span class="optional">[</span>, <em>$which = ''</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::valid_ip" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$ip</strong> (<em>string</em>) – IP address</li>
|
|
<li><strong>$which</strong> (<em>string</em>) – IP protocol (‘ipv4’ or ‘ipv6’)</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">TRUE if the address is valid, FALSE if not</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">bool</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Takes an IP address as input and returns TRUE or FALSE (boolean) depending
|
|
on whether it is valid or not.</p>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">The $this->input->ip_address() method above automatically
|
|
validates the IP address.</p>
|
|
</div>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">if</span> <span class="p">(</span> <span class="o">!</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">valid_ip</span><span class="p">(</span><span class="nv">$ip</span><span class="p">))</span>
|
|
<span class="p">{</span>
|
|
<span class="k">echo</span> <span class="s1">'Not Valid'</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
<span class="k">else</span>
|
|
<span class="p">{</span>
|
|
<span class="k">echo</span> <span class="s1">'Valid'</span><span class="p">;</span>
|
|
<span class="p">}</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>Accepts an optional second string parameter of ‘ipv4’ or ‘ipv6’ to specify
|
|
an IP format. The default checks for both formats.</p>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::user_agent">
|
|
<tt class="descname">user_agent</tt><big>(</big><span class="optional">[</span><em>$xss_clean = NULL</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::user_agent" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">User agent string or NULL if not set</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">mixed</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Returns the user agent string (web browser) being used by the current user,
|
|
or NULL if it’s not available.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">user_agent</span><span class="p">();</span>
|
|
</pre></div>
|
|
</div>
|
|
<p>See the <a class="reference internal" href="user_agent.html"><em>User Agent Class</em></a> for methods which extract
|
|
information from the user agent string.</p>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::request_headers">
|
|
<tt class="descname">request_headers</tt><big>(</big><span class="optional">[</span><em>$xss_clean = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::request_headers" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An array of HTTP request headers</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">array</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Returns an array of HTTP request headers.
|
|
Useful if running in a non-Apache environment where
|
|
<a class="reference external" href="http://php.net/apache_request_headers">apache_request_headers()</a>
|
|
will not be supported.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$headers</span> <span class="o">=</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">request_headers</span><span class="p">();</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::get_request_header">
|
|
<tt class="descname">get_request_header</tt><big>(</big><em>$index</em><span class="optional">[</span>, <em>$xss_clean = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::get_request_header" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$index</strong> (<em>string</em>) – HTTP request header name</li>
|
|
<li><strong>$xss_clean</strong> (<em>bool</em>) – Whether to apply XSS filtering</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">An HTTP request header or NULL if not found</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Returns a single member of the request headers array or NULL
|
|
if the searched header is not found.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">get_request_header</span><span class="p">(</span><span class="s1">'some-header'</span><span class="p">,</span> <span class="k">TRUE</span><span class="p">);</span>
|
|
</pre></div>
|
|
</div>
|
|
</dd></dl>
|
|
|
|
<dl class="method">
|
|
<dt id="CI_Input::is_ajax_request">
|
|
<tt class="descname">is_ajax_request</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Input::is_ajax_request" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">TRUE if it is an Ajax request, FALSE if not</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Checks to see if the HTTP_X_REQUESTED_WITH server header has been
|
|
set, and returns boolean TRUE if it is or FALSE if not.</p>
|
|
</dd></dl>
|
|
|
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<dl class="method">
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<dt id="CI_Input::is_cli_request">
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<tt class="descname">is_cli_request</tt><big>(</big><big>)</big><a class="headerlink" href="#CI_Input::is_cli_request" title="Permalink to this definition">¶</a></dt>
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<dd><table class="docutils field-list" frame="void" rules="none">
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|
<col class="field-name" />
|
|
<col class="field-body" />
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<tbody valign="top">
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<tr class="field-odd field"><th class="field-name">Returns:</th><td class="field-body">TRUE if it is a CLI request, FALSE if not</td>
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|
</tr>
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|
<tr class="field-even field"><th class="field-name">Return type:</th><td class="field-body">bool</td>
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</tr>
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</tbody>
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</table>
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|
<p>Checks to see if the application was run from the command-line
|
|
interface.</p>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">This method checks both the PHP SAPI name currently in use
|
|
and if the <tt class="docutils literal"><span class="pre">STDIN</span></tt> constant is defined, which is usually a
|
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failsafe way to see if PHP is being run via the command line.</p>
|
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</div>
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<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">is_cli_request</span><span class="p">()</span>
|
|
</pre></div>
|
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</div>
|
|
<div class="admonition note">
|
|
<p class="first admonition-title">Note</p>
|
|
<p class="last">This method is DEPRECATED and is now just an alias for the
|
|
<tt class="xref py py-func docutils literal"><span class="pre">is_cli()</span></tt> function.</p>
|
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</div>
|
|
</dd></dl>
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|
|
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<dl class="method">
|
|
<dt id="CI_Input::method">
|
|
<tt class="descname">method</tt><big>(</big><span class="optional">[</span><em>$upper = FALSE</em><span class="optional">]</span><big>)</big><a class="headerlink" href="#CI_Input::method" title="Permalink to this definition">¶</a></dt>
|
|
<dd><table class="docutils field-list" frame="void" rules="none">
|
|
<col class="field-name" />
|
|
<col class="field-body" />
|
|
<tbody valign="top">
|
|
<tr class="field-odd field"><th class="field-name">Parameters:</th><td class="field-body"><ul class="first simple">
|
|
<li><strong>$upper</strong> (<em>bool</em>) – Whether to return the request method name in upper or lower case</li>
|
|
</ul>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-even field"><th class="field-name">Returns:</th><td class="field-body"><p class="first">HTTP request method</p>
|
|
</td>
|
|
</tr>
|
|
<tr class="field-odd field"><th class="field-name">Return type:</th><td class="field-body"><p class="first last">string</p>
|
|
</td>
|
|
</tr>
|
|
</tbody>
|
|
</table>
|
|
<p>Returns the <tt class="docutils literal"><span class="pre">$_SERVER['REQUEST_METHOD']</span></tt>, with the option to set it
|
|
in uppercase or lowercase.</p>
|
|
<div class="highlight-ci"><div class="highlight"><pre><span></span><span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="k">TRUE</span><span class="p">);</span> <span class="c1">// Outputs: POST</span>
|
|
<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">(</span><span class="k">FALSE</span><span class="p">);</span> <span class="c1">// Outputs: post</span>
|
|
<span class="k">echo</span> <span class="nv">$this</span><span class="o">-></span><span class="na">input</span><span class="o">-></span><span class="na">method</span><span class="p">();</span> <span class="c1">// Outputs: post</span>
|
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</pre></div>
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