Description:
------------
I don't know how to classify this so i leave it to someone who might have a better idea how to deal with this:

BUG DESCRIPTION
===============

@include() supresses all error messages, INCLUDING PARSE ERRORS, in the included script and all descendents.
This also affects __autoload so that there are no warnings whatsoever when something goes wrong.
This makes a script using @include undebugable!


DOCUMENTATION PROBLEM
=====================
http://de2.php.net/manual/en/language.operators.errorcontrol.php states that:
Note:  The "@" error-control operator prefix will not disable messages that are the result of parse errors.

which is clearly wrong (see example).

It also states in the follwing warning:
Currently the "@" error-control operator prefix will even disable error reporting for critical errors that will terminate script execution. Among other things, this means that if you use "@" to suppress errors from a certain function and either it isn't available or has been mistyped, the script will die right there with no indication as to why. 

which also quite misses the current behavior.

It seems to me that the current implementation of the @ operator is to set error_reporting to E_NONE for the evaluation of the following expression This is OK for something like
@list($a, $b, $c) = explode($sep, $string);
where it catches the 'Undefined offset' note. 

I ran into this doing the following:

if (!@include_once($path1.$filename)) {require_once($path2.$filename);}

wondering why the script terminates somewhere silently without giving a notice about a reason.
After some hours of digging i found the error which aborted the script and then traced the missing fatal back to the @include().


FEATURE REQUEST
===============

@ should modify error_reporting only for the current expression, and not globally until the evaluation is complete.

RELATED
=======
Effect is also visible in example of Bug #31736


Reproduce code:
---------------
File include.php
------------------
<?php
@include("included.php");
?>

File included.php
------------------
<?php
[parse error of your choice]
?>


Expected result:
----------------
Parse error: parse error, unexpected [something] in included.php on line 2

Actual result:
--------------
FATAL error message is supressed.