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66 lines
1.6 KiB
66 lines
1.6 KiB
<?php
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/**
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* Created by PhpStorm.
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* User: Nermin
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* Date: 28. 05. 2018
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* Time: 12:12
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*/
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class DBconnect {
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private static $host = "localhost";
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private static $user = "nermin";
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private static $password = "";
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private static $schema = "dialectsdb";
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private static $instance = null;
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private function __construct() {
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}
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private function __clone() {
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}
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/**
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* Returns a PDO instance -- a connection to the database.
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* The singleton instance assures that there is only one connection active
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* at once (within the scope of one HTTP request)
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*
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* @return PDO instance
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*/
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public static function getInstance() {
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// Check for config overrides via enviroment variables.
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if (getenv('DB_HOST')) {
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self::$host = getenv('DB_HOST');
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}
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if (getenv('DB_USER')) {
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self::$user = getenv('DB_USER');
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}
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if (getenv('DB_PASS')) {
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self::$password = getenv('DB_PASS');
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}
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if (getenv('DB_SCHEMA')) {
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self::$schema = getenv('DB_SCHEMA');
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}
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if (!self::$instance) {
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$config = "mysql:host=" . self::$host
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. ";dbname=" . self::$schema;
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$options = array(
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PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION,
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PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC,
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PDO::ATTR_PERSISTENT => true,
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PDO::MYSQL_ATTR_INIT_COMMAND => 'SET NAMES utf8'
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);
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self::$instance = new PDO($config, self::$user, self::$password, $options);
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}
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return self::$instance;
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}
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}
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