How to add or enable error reply

[Obsdark]

Hello

Im trying to work with PDO-mysql but i dont receive no reply at all, no confirmation, no anything, is just not working, so i go to irc looking for help and recommended me to activate this:

"?php error_reporting(-1); ini_set(display_errors, 1);"

How i can do it?

Please have in mind than the .php pages are shown blank, but yesterday i just ended a proyect which requeired .php on this same uniserv, however this proyect successfully add data to the mysql database im working on and im, in fact, reusing the code from the other proyect to start from somewhere.

If you think the code can be the problem, here is the nopaste:

(The same was shown on irc)

http://nopaste.php-quake.net/89897

Consider also than im a noob learning.

Thanks in advance

-Obsdark-