PDO supports PHP 5.2 [closed]

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I read that PDO is not supported well (buggy) in php 5.2. I would like to how buggy is PDO in PHP 5.2?

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I've used PDO with PHP 5.2 (mainly with MySQL databases ; sometimes with Doctrine or Zend Framework, which use PDO underneath) for years, including on some big/important projects, and have never met any kind of critical bug.

_{As a sidenote : PHP 5.2 itself is not quite supported anymore, as it's reached its end-of-support}