Why Do I Get 'Undefined Function mysql_connect()' Even After Installing php5-mysql?

Resolving "Undefined Function mysql_connect()" Error

Despite installing php5-mysql, you continue to encounter the "Undefined function mysql_connect()" error. Let's delve into the issue and investigate possible solutions.

As the phpinfo() output indicates, the pdo_mysql.ini file has been parsed, suggesting the extension is loaded. However, the error implies that the mysql_* functions are not available.

If you are using PHP7, it's important to note that the mysql_ functions have been removed completely. Instead, you should consider using the PDO (PHP Data Objects) or mysqli_ functions. Updating your code to utilize these functions will resolve the issue.

Alternatively, if updating your code is not feasible, a workaround is available. You can create a PHP include file, fix_mysql.inc.php, which recreates the old mysql_ functions using mysqli_()-functions. This can act as a temporary fix until you can migrate your code to the newer functions.

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