From: xmlguy at hotmail dot com
Operating system: Win XP Pro
PHP version: 4.3.8
PHP Bug Type: mbstring related
Bug description: Form POST not decoded properly
Description:
------------
If key contains more than one set of square brackets, the key value pair
is not decoded properly. For example, a form with a series of input
elements named such as "formname[0].fieldname[0]" will cause incorrect and
missing key/value pairs to be stored into the $_POST array.
In researching the existing bug list, I noticed that there have been
numerous variations of bugs reported when form data contains url encoded
data, such as occurs when the brackets are encoded as %5b and %5d.
However these bugs have apparently been closed without actually fixing
this problem. Perhaps a more thorough analysis of this problem is
warranted to keep it from lingering on for a few more years before this
report is closed. The Adobe acrobat products/reader have just started to
encode form names in this format, so it could become a very serious issue
if PHP cannot correctly process this form data.
Reproduce code:
---------------
<html>
<head><title>Form Submit Test Script</title></head>
<body>
<form name='fm1' action="<? echo ($_SERVER["HTTP_REFERER"])?>"
method='post'>
<input type='text' name='form1[0].firstname[0]' value='John' />
<input type='text' name='form1[0].lastname[0]' value='Doe' />
<input type='submit' />
</form>
<?
var_dump($_POST);
?>
</body>
</html>
Expected result:
----------------
array(2) { ["form1[0].firstname[0]"]=> string(5) "billy"
["form1[0].lastname[0]"]=> string(4) "joel" }
Actual result:
--------------
array(1) { ["form1"]=> array(1) { [0]=> string(4) "joel" } }
--
Edit bug report at http://bugs.php.net/?id=29401&edit=1
--
Try a CVS snapshot (php4): http://bugs.php.net/fix.php?id=29401&r=trysnapshot4
Try a CVS snapshot (php5): http://bugs.php.net/fix.php?id=29401&r=trysnapshot5
Fixed in CVS: http://bugs.php.net/fix.php?id=29401&r=fixedcvs
Fixed in release: http://bugs.php.net/fix.php?id=29401&r=alreadyfixed
Need backtrace: http://bugs.php.net/fix.php?id=29401&r=needtrace
Need Reproduce Script: http://bugs.php.net/fix.php?id=29401&r=needscript
Try newer version: http://bugs.php.net/fix.php?id=29401&r=oldversion
Not developer issue: http://bugs.php.net/fix.php?id=29401&r=support
Expected behavior: http://bugs.php.net/fix.php?id=29401&r=notwrong
Not enough info: http://bugs.php.net/fix.php?id=29401&r=notenoughinfo
Submitted twice: http://bugs.php.net/fix.php?id=29401&r=submittedtwice
register_globals: http://bugs.php.net/fix.php?id=29401&r=globals
PHP 3 support discontinued: http://bugs.php.net/fix.php?id=29401&r=php3
Daylight Savings: http://bugs.php.net/fix.php?id=29401&r=dst
IIS Stability: http://bugs.php.net/fix.php?id=29401&r=isapi
Install GNU Sed: http://bugs.php.net/fix.php?id=29401&r=gnused
Floating point limitations: http://bugs.php.net/fix.php?id=29401&r=float
