How to: Get last inserted id MySQL PHP

If you're using PDO, use PDO::lastInsertId.

If you're using Mysqli, use mysqli::$insert_id.

If you're still using Mysql:

Please, don't use mysql_* functions in new code. They are no longer maintained and are officially deprecated. See the red box? Learn about prepared statements instead, and use PDO orMySQLi - this article will help you decide which. If you choose PDO, here is a good tutorial.