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

staticPDO::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);