Replace all the include_once by require_once

[Langlais115]

Hi,

May I propose to change all the include_once into require_once? (as if a file is not found it should raise an error and stop. Using include, the application is trying to go further and might become unstable.)

I also remove all the @ sign in front of the require_once as it hide error. Errors should NEVER be hidden but handled.

And finally I add a check in the connect.php file (line 94) as the variable is not set by default.

[farlistener]

For the include_once / require_once

Thanks, but, I don't have to do it on all files, because some files are outside librairies, so don't tweak them.

The correction to ['modules']['authenticator'] seems legit. But I started a check on the install process and normally (but who knows) it won't happen in a near future. I take it.

So for the moment, I can't merge this PR.

[Langlais115]

Fair enough. Thanks for your explanations.

[farlistener]

PR the module thing separetely I will surely take it. For the include_onces, with distinction, same thing.

So try it again, pleeeeeeeeeeeease