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Bug #20212 Content of form array variables will be cutted by the first 4 characters
Submitted: 2002-11-01 06:23 UTC Modified: 2002-11-01 06:28 UTC
From: chr at abelard dot de Assigned:
Status: Closed Package: HTTP related
PHP Version: 4.2.3 OS: SuSE Linux 8.0
Private report: No CVE-ID: None
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From: chr at abelard dot de
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 [2002-11-01 06:23 UTC] chr at abelard dot de 
PHP 4.2.3 will cut the first 4 characters from content of form variables,
if they are array's.  This does not occur in PHP versions 4.1.1 and
4.1.2.
The following 2 files demonstrate the bug. First the HTML form:

++++++++++++++++ Begin ++++++++++++++++++++++++++++++++++
<html>
<head>
  <title>Demonstrate error in form handling by PHP 4.2.3</title>
</head>
<body bgcolor=white>
<form action="http://139.18.20.141/formError.php" method="post">
<!-- try the following URLs for "action" to see correctly working older systems:
  [PHP 4.1.1] http://www.abelard.info/formError.php
  [PHP 4.1.2] http://www.stura.uni-leipzig.de/sp/formError.php
-->
  <input type='checkbox' name='selectCourse[]' value='KURS_' checked="1">KURS_ <BR>
  <input type='checkbox' name='selectCourse[]' value='ABCD_KURS_0_1'>ABCD_KURS_0_1 <BR>
  <input type="submit" name="submit" value="Ok" >
</form>
</body>
</html>
--------------- End ------------------------------

Second, the processing PHP file:

+++++++++++++++++ Begin ++++++++++++++++++++++++++++++++++++
<html>
<head><title>POST-Array test</title></head>
<body>
<h1>POST-Array test</h1>
<p>
<?php
echo 'selectCourse[0]='.$_POST['selectCourse'][0]."<br>\n";
echo 'selectCourse[1]='.$_POST['selectCourse'][1];
?>
</p>
</body>
</html>
---------------- End --------------------------------

If submitted by only clicking the OK-button, this should output
   ...  
   selectCourse[0]=KURS_
   ...

but in fact it does this on older versions of PHP only.
PHP 4.2.3 does output instead:

   ...
   selectCourse[0]=_
   ...

loosing the first 4 characters from variable content.

Note:
This occurs _only_ on array-like variables as above, normal variables
were submitted correctly.

   ***
Now the usual system information:
You can obtain the full configuration by calling

   http://139.18.20.141/test.php

The configure line here again:

+++++++++++++++++++++++++ Begin ++++++++++++++++++++++++++
'./configure' '--prefix=/usr/share' '--datadir=/usr/share/php' '--bindir=/usr/bin' '--libdir=/usr/share' '--libdir=/usr/local/lib' '--includedir=/usr/include'  '--includedir=/usr/local/include' '--with-config-file-path=/etc'  '--with-exec-dir=/usr/lib/php/bin' '--disable-debug' '--enable-bcmath' '--enable-calendar'
 '--enable-ctype' '--enable-dbase' '--enable-discard-path' '--enable-exif'  '--enable-force-cgi-redirect' '--enable-ftp' '--enable-inline-optimization' '--enable-magic-quotes' '--enable-mbstr-enc-trans' '--enable-mbstring' '--enable-memory-limit'  '--enable-safe-mode' '--enable-shmop' '--enable-sigchild'   '--enable-sysvsem' '--enable-sysvshm' '--enable-trans-sid' '--enable-versioning' '--with-bz2' '--with-dom=/usr/local/include/libxml2' '--with-ftp' '--with-gettext'
'--with-imap=yes' '--with-jpeg-dir=/usr' '--with-mysql=/usr' '--with-png-dir=/usr' '--with-xml' '--with-zlib=yes' '--enable-xslt' '--with-xslt-sablot' '--with-mm'  '--with-apxs=/usr/sbin/apxs' '--with-pcre-regex' '--without-pgsql' '--with-imap-ssl'
----------------------- End -----------------------

I have compiled PHP by getting php-4.2.3.tar.bz2 from 
  http://de.php.net/get_download.php?df=php-4.2.3.tar.bz2
The md5 sum is OK.
For APACHE I used the source RPM included in SuSE 8.0, that means
version "1.3.23".
##

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AllCommentsChangesGit/SVN commitsRelated reports
 [2002-11-01 06:28 UTC] derick@php.net 
This bug has been fixed in CVS.

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