PDO::getAvailableDrivers()
(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 1.0.3)
返回一个可用驱动的数组
说明
static PDO::getAvailableDrivers(void): array
pdo_drivers(void): array
此函数(方法)返回所有当前可用在PDO::__construct()的参数$DSN中的 PDO 驱动。
返回值
PDO::getAvailableDrivers()返回一个包含可用 PDO 驱动名字的数组。如果没有可用的驱动,则返回一个空数组。
范例
一个PDO::getAvailableDrivers()的例子
<?php print_r(PDO::getAvailableDrivers()); ?>
以上例程的输出类似于:
Array ( [0] => mysql [1] => sqlite )
Since the method is a static, one practice is using it to check whether a specific server database driver is available and configured correctly with PDO before establishing the connection: <?php try { if (!in_array("mysql",PDO::getAvailableDrivers(),TRUE)) { throw new PDOException ("Cannot work without a proper database setting up"); } } catch (PDOException $pdoEx) { echo "Database Error .. Details :<br /> {$pdoEx->getMessage()}"; } ?> or to check for any driver in general: <?php if (empty(PDO::getAvailableDrivers())) { throw new PDOException ("PDO does not support any driver."); } ?>
/* * Coder : PamukBilisim * Date : 02/02/2014 */ function getDriverList($ayrac = ",", $echo = true){ $ARR_DRIVERS = array(); $CountDrivers = 0; foreach(PDO::getAvailableDrivers() AS $DRIVERS) : $CountDrivers++; $ARR_DRIVERS[$CountDrivers] = $DRIVERS; endforeach; $_GET_DRIVER_LIST = implode($ayrac, $ARR_DRIVERS); if( $echo ): echo $_GET_DRIVER_LIST; else : return $_GET_DRIVER_LIST; endif; } Example : echo "Kullanabileceğiniz pdo veritabanları : " . getDriverList(" , ", false);