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@ 2015-03-23T13:00:41Z

<?php

var_dump(class_exists('PDO'));

$ref = new ReflectionClass('PDO');

Output
Performance
VLD
References
Branches

var_dump: documentation ( source)
class_exists: documentation ( source)

preferences:dark modelive preview

70.4 ms | 402 KiB | 5 Q