note 122028 deleted from pdo.construct by cmb
| From: | cmb@php.net | Date: | Mon, 28 Sep 2020 13:27:08 +0000 |
| Subject: | note 122028 deleted from pdo.construct by cmb | ||
| References: | 1 | Groups: | php.notes |
| Request: | Send a blank email to php-notes+get-215477@lists.php.net to get a copy of this message | ||
Note Submitter: infatu8 at 163 dot com
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pdoå便¨¡å¼
<?php
class PdoExt extends PDO{
static protected $_instance;
protected function __construct($dsn, $username, $password){
return parent::__construct($dsn, $username, $password);
}
static public function getInstance($dsn, $username, $password){
if(!isset(self::$_instance)){
self::$_instance = new self($dsn, $username, $password);
}
return self::$_instance;
}
}
$dsn = "mysql:host=localhost";
$username = "root";
$password = "root";
$pdo = PdoExt::getInstance($dsn, $username, $password);
$sql = "SELECT user,host FROM mysql.user WHERE user = :user";
$statement = $pdo->prepare($sql);
$username = 'root';
$statement->bindParam(':user', $username);
$statement->execute();
$users = $statement->fetchAll(2);
print_r($users);