How do I Fix the \"Undefined Function mysql_connect()\" Error in PHP?

Troubleshooting "Undefined Function mysql_connect() Error" in PHP

When attempting to utilize the mysql_connect() function, users may encounter the error "undefined function mysql_connect()." This error often occurs despite installing the php5-mysql package and restarting the necessary services.

Resolution:

To resolve this issue, consider the following approaches:

For PHP7:

• Mysql_ functions have been removed entirely in PHP7. It is recommended to update your code to use PDO-functions or mysqli_ functions instead.

Workaround for PHP5:

• Create a small PHP include file that recreates the mysql_ functions using mysqli_() functions, such as fix_mysql.inc.php. This allows you to continue using the old mysql_* functions.

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