07-02-01-Databases_MySQL.md

isChild	title	anchor
true	MySQL Extension	mysql_extension

MySQL Extension {#mysql_extension_title}

The mysql extension for PHP is no longer in active development, and is [officially deprecated as of PHP 5.5.0] mysql_deprecated, meaning that it will be removed within the next few releases. If you are using any functions that start with mysql_* such as mysql_connect() and mysql_query() in your applications then these will simply not be available in later versions of PHP. This means you will be faced with a rewrite at some point down the line, so the best option is to replace mysql usage with mysqli or PDO in your applications within your own development schedules so you won't be rushed later on.

If you are starting from scratch then absolutely do not use the mysql extension: use the MySQLi extension, or use PDO.

• PHP: Choosing an API for MySQL
• PDO Tutorial for MySQL Developers