After I upgraded php5 to php7, I get an error 500 with
PHP Fatal error: Uncaught Error: Call to undefined function mysql_connect()
I put this into my apt sources in order to get php7 right now:
deb http://packages.dotdeb.org jessie all
deb-src http://packages.dotdeb.org jessie all
What I basically did is:
apt-get remove php5
apt-get install php7-*
I'm using the current version of Debian Jessie.
But I still get this. There are a lot of questions here on SO and I definitely checked them all out. But I didn't find an answer there yet.
From the PHP Manual:
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. Alternatives to this function include:
mysqli_connect()
PDO::__construct()
use MySQLi or PDO
<?php
$con = mysqli_connect('localhost', 'username', 'password', 'database');
Source: Stackoverflow.com