how to enable debugging with PHP/MySql

[philo_neo]

hello,
I develop on my server LAMP, more precisely in PHP / MySql, I would like to know how to activate the errors by configuring the server apache 2.2 to avoid programming blind.
I work with Debian 8.8 AMD64.
the editor that I use as workspace is kate with syntax highlighting, is there another editor with a debug window ?


1 / how to enable debugging ...
2 / How to access log files ...


Regards
Philippe

[TonyT]

in your php.ini file:

ini_set('display_startup_errors', 1);
ini_set('display_errors', 1);
error_reporting(-1);

[dotlj]

Just a question, why use Apache 2.2 when its EoL was six months ago? https://www.apache.org/dist/httpd/Announcement2.2.html
That means your site is likely vulnerable to numerous issues which would be patched in Apache 2.4.
Your site may be a private site on a local network unaccessible from the Internet, in which case using an outdated Apache wouldn't matter.