Doc #75924 [Opn]: No doc: behavior of @ini_get('error_reporting') was changed from 5.6 to 7.0
Edit report at https://bugs.php.net/bug.php?id=75924&edit=1
ID: 75924
Updated by: requinix@php.net
Reported by: mikko dot rantalainen at peda dot net
-Summary: No doc: behavior of ini_get('error_reporting') was
changed from 5.6 to 7.0
+Summary: No doc: behavior of @ini_get('error_reporting') was
changed from 5.6 to 7.0
Status: Open
Type: Documentation Problem
-Package: Documentation problem
+Package: Scripting Engine problem
Operating System: Linux/Ubuntu
PHP Version: 7.2.2
Block user comment: N
Private report: N
New Comment:
The @ is not being ignored. Rather, (as I remember it) when @ suppresses error reporting it no
longer affects the INI setting. ini_get() will properly report what the setting is, not the
temporary value established during the expression evaluation. What I don't know/remember is
whether this is tied to a bug report (couldn't find one) or one of 7.0's many other
changes (AST?).
Since the behavior is from the @ I think noting the change is best suited for that doc page.
http://php.net/manual/en/language.operators.errorcontrol.php
Previous Comments:
------------------------------------------------------------------------
[2018-02-06 12:56:43] mikko dot rantalainen at peda dot net
Description:
------------
---
From manual page: http://www.php.net/function.error-reporting
---
The ini_get('error_reporting') was historically the only way to get same results as
current implementation of error_reporting(). However, the behavior
of ini_get('error_reporting') was changed between PHP 5.6 and 7.0 but this has not been
documented anywhere.
See https://3v4l.org/3lFoe for demo.
Note that this also affect all custom error handlers that inspect value of
ini_get('error_reporting') and not just @ini_get() syntax.
I assume that PHP 7.x ignores at-sign by design (the function name suggests that this is the value
set in the ini file) but this change is missing official documentation.
I'd prefer this to be documented in both http://www.php.net/function.error-reporting
and http://php.net/manual/en/function.ini-get.php
Test script:
---------------
<?php
# different results for PHP 5.x and 7.x:
ini_set('error_reporting', 1);
$a = array();
$a['ini_get'] = ini_get('error_reporting');
$a['error_reporting'] = error_reporting();
$a['@ini_get'] = @ini_get('error_reporting');
$a['@error_reporting'] = @error_reporting();
var_export($a);
Expected result:
----------------
The output should be stable for all versions.
Actual result:
--------------
Behavior is stable for 5.x and all versions of hhvm. However, PHP 7.x will ignore the at-sign (@) in
front of ini_get(). I believe that PHP 4.x used to work identical to 5.x here but I do not have any
environment to test that.
------------------------------------------------------------------------
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Edit this bug report at https://bugs.php.net/bug.php?id=75924&edit=1
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