Installing/Configuring
PHP Manual

Requirements

In order to have these functions available, you must compile PHP with MySQL support.

Warning

This extension was deprecated in PHP 5.5.0, and it was removed in PHP 7.0.0. Instead, the MySQLi or PDO_MySQL extension should be used. See also MySQL: choosing an API guide and related FAQ for more information. Alternatives to this function include:


Installing/Configuring
PHP Manual