Created
November 26, 2013 09:35
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PHP: Persistent connection to DB via PDO / use existing connection if available.
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| <?php | |
| class MyClass | |
| { | |
| const DB_HOST = '127.0.0.1'; | |
| const DB_NAME = 'mydb'; | |
| const DB_USER = 'me'; | |
| const DB_PSWD = '123abc'; | |
| private static $db; | |
| protected static function conn() | |
| { | |
| $opts = array( | |
| PDO::ATTR_PERSISTENT => true, // use existing connection if exists, otherwise try to connect | |
| PDO::ATTR_DEFAULT_FETCH_MODE => PDO::FETCH_ASSOC // by default fetch results as associative array | |
| ); | |
| self::$db = new PDO( sprintf( "mysql:host=%s;dbname=%s;charset=utf8", self::DB_HOST, self::DB_NAME ), self::DB_USER, self::DB_PSWD, $opts ); | |
| return self::$db; | |
| } | |
| public static function example() | |
| { | |
| $results = self::conn()->query( "SELECT * FROM my_table" ); | |
| echo '<pre>' . print_r( $results, true ) . '</pre>'; | |
| } | |
| } | |
| // Entry point: | |
| MyClass::example(); |
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hi try the same i am getting too many connection error . so how could i test that my persistant connection is actually working.. means how to get to know that actually connection are been reused