__autoload has been deprecated as of PHP 7.2 [1][2]

We have an implementation of function __autoload in core.php.
Therefore, according a user in forum, you get messages in PHP log when using PHP 7.2 [3]

I had a short look at it and found that we are using __autoload and spl_autoload_register.

I have no time to have a deeper look at the moment, maybe we have just to rename __autoload and use it as parameter for spl_autoload_register.

[1] http://php.net/manual/en/migration72.deprecated.php
[2] http://php.net/manual/en/function.autoload.php
[3] https://www.mantisbt.org/forums/viewtopic.php?f=2&t=25177