PDO::getAvailableDrivers

(PHP 5 >= 5.1.0, PHP 7, PECL pdo >= 1.0.3)

PDO::getAvailableDrivers — 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

Example #1 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
)

User Contributed Notes

iabdullah 07-Aug-2014 07:31


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.");

    }

?>

faruk at pamukbilisim dot com 02-Feb-2014 05:13


/*

 * 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 "Kullanabilece?iniz pdo veritabanlar? : " . getDriverList(" , ", false);