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.");
}
?>
PDO::getAvailableDrivers
pdo_drivers
(PHP 5 >= 5.1.0, PHP 7, PHP 8, PECL pdo >= 1.0.3)
PDO::getAvailableDrivers -- pdo_drivers — 返回一个可用驱动的数组
参数
此函数没有参数。
返回值
PDO::getAvailableDrivers() 返回包含可用 PDO 驱动名字的数组。如果没有可用的驱动，则返回空数组。
示例
示例 #1 PDO::getAvailableDrivers() 示例
<?php
print_r(PDO::getAvailableDrivers());
?>以上示例的输出类似于：
Array
(
[0] => mysql
[1] => sqlite
)
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User Contributed Notes 1 note
iabdullah ¶
10 years ago
