Bug->Doc #81482 [Opn->Nab]: parse_ini_string behaves differently than on PHP 8.0-

Edit report at https://bugs.php.net/bug.php?id=81482&edit=1

 ID:                 81482
 Updated by:         [email protected]
 Reported by:        dseguy at exakat dot io
 Summary:            parse_ini_string behaves differently than on PHP
                     8.0-
-Status:             Open
+Status:             Not a bug
-Type:               Bug
+Type:               Documentation Problem
 Package:            Filesystem function related
 PHP Version:        8.1.0RC2
-Assigned To:        
+Assigned To:        cmb
 Block user comment: N
 Private report:     N

 New Comment:

It seems to me that is already documented in the migration
guide[1] (and also in UPGRADING).

[1] <https://www.php.net/manual/en/migration81.other-changes.php#migration81.other-changes.ini>


Previous Comments:
------------------------------------------------------------------------
[2021-09-27 17:27:51] dseguy at exakat dot io

Description:
------------
Here is a simple string that yields an error on PHP 8.1 and nothing on PHP 8.0.

https://3v4l.org/Jg3Wu

I think the INI code should actually yield an error (the 4th " is actually not escaped) but it used to be processed without error in PHP 8.0 and older. 

I could not find a mention of parse_ini_* update in the NEWS, so it might be collateral. 

I suggest a mention of update in the migration manual will be good. 

Test script:
---------------
<?php

$ini = <<<'INI'
code="
 \"\\" value=\\"\" . htmlspecialchars($Value) . \"\\" />\n\";
";
INI;

print_r(parse_ini_string($ini));

Expected result:
----------------
Array
(
    [code] => 
 "\" value=\"" . htmlspecialchars($Value) . "\" />\n";

)

Actual result:
--------------
code="
 \"\\" value=\\"\" . htmlspecialchars($Value) . \"\\" />\n\";
";PHP Warning:  syntax error, unexpected '=' in Unknown on line 2


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Edit this bug report at https://bugs.php.net/bug.php?id=81482&edit=1