Bug #51364 [NEW]: ini_set() of PHP_INI_ALL fails when php_admin_* is used

From: Date: Tue, 23 Mar 2010 13:24:00 +0000
Subject: Bug #51364 [NEW]: ini_set() of PHP_INI_ALL fails when php_admin_* is used
Groups: php.bugs 
Request: Send a blank email to php-bugs+get-148892@lists.php.net to get a copy of this message 
From:             
Operating system: AIX 5.3 TL8 (5300-08-01-0819)
PHP version:      5.2.13
Package:          PHP options/info functions
Bug Type:         Bug
Bug description:ini_set() of PHP_INI_ALL fails when php_admin_* is used

Description:
------------
http://se.php.net/manual/en/configuration.changes.php
specifies that
php_admin_value can not be overridden using ini_set() anymore. When was
this changed? This was not so in the past and a version indication would be
good to have. (It appears that the behavior has indeed changed.)

Also, nothing is mentioned regarding ini_set() used on php_admin_flag
directives. Are those also unchangeable? If so, this should be mentioned
too, perhaps along with a version indication there too.

Attaching a sample script and settings for testing the behavior.

Test script:
---------------
httpd.conf:

  php_admin_value session.gc_maxlifetime 3600
  php_admin_value session.gc_probability 1

Test script:

<?php

  $varname = 'session.gc_probability';
  $value = 100;

  $blnResult = ini_set($varname, $value);
  if (empty($blnResult) or (!$blnResult)) {
    echo "setting $varname could not be set, current value is " .
ini_get($varname) . " and desired value is $value";
  } else {
    echo "Setting updated -- old value $blnResult, desired value $value and
new value " . ini_get($varname);
  }

?>

Expected result:
----------------
Setting updated -- old value 1, desired value 100 and new value 100

Actual result:
--------------
setting session.gc_probability could not be set, current value is 1 and
desired value is 100

-- 
Edit bug report at http://bugs.php.net/bug.php?id=51364&edit=1
-- 
Try a snapshot (PHP 5.2):            http://bugs.php.net/fix.php?id=51364&r=trysnapshot52
Try a snapshot (PHP 5.3):            http://bugs.php.net/fix.php?id=51364&r=trysnapshot53
Try a snapshot (PHP 6.0):            http://bugs.php.net/fix.php?id=51364&r=trysnapshot60
Fixed in SVN:                        http://bugs.php.net/fix.php?id=51364&r=fixed
Fixed in SVN and need be documented: http://bugs.php.net/fix.php?id=51364&r=needdocs
Fixed in release:                    http://bugs.php.net/fix.php?id=51364&r=alreadyfixed
Need backtrace:                      http://bugs.php.net/fix.php?id=51364&r=needtrace
Need Reproduce Script:               http://bugs.php.net/fix.php?id=51364&r=needscript
Try newer version:                   http://bugs.php.net/fix.php?id=51364&r=oldversion
Not developer issue:                 http://bugs.php.net/fix.php?id=51364&r=support
Expected behavior:                   http://bugs.php.net/fix.php?id=51364&r=notwrong
Not enough info:                     http://bugs.php.net/fix.php?id=51364&r=notenoughinfo
Submitted twice:                     http://bugs.php.net/fix.php?id=51364&r=submittedtwice
register_globals:                    http://bugs.php.net/fix.php?id=51364&r=globals
PHP 4 support discontinued:          http://bugs.php.net/fix.php?id=51364&r=php4
Daylight Savings:                    http://bugs.php.net/fix.php?id=51364&r=dst
IIS Stability:                       http://bugs.php.net/fix.php?id=51364&r=isapi
Install GNU Sed:                     http://bugs.php.net/fix.php?id=51364&r=gnused
Floating point limitations:          http://bugs.php.net/fix.php?id=51364&r=float
No Zend Extensions:                  http://bugs.php.net/fix.php?id=51364&r=nozend
MySQL Configuration Error:           http://bugs.php.net/fix.php?id=51364&r=mysqlcfg

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