PDO::getAvailableDrivers
(PHP 5 >= 5.1.3, PECL pdo >= 1.0.3)
PDO::getAvailableDrivers — 返回一个可用驱动的数组
说明
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
)
用户评论:
[#1] iabdullah [2014-08-07 07:31:57]
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.");
}
?>
[#2] faruk at pamukbilisim dot com [2014-02-02 17:13:10]
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);