Code Examples -> Script to check values being submitted by POST or GET method from a form. This script may help diagnose what variables are being supplied by a browser to other php scripts.

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PHP Code Examples

Title :	Script to check values being submitted by POST or GET method from a form. This script may help diagnose what variables are being supplied by a browser to other php scripts.
Categories :	HTML, Variables, Debugging, PHP, HTTP	Nick Talbott
Date :	Aug 13th 1998
Grade :	2 of 5 (graded 4 times)
Viewed :	8700
File :	No file for this code example.
Images :	No Images for this code example.

Search :	More code by Nick Talbott
Action :	Grade This Code Example
Tools :	My Examples List

Code

<?php
 // To check output from a form, set the <FORM ACTION=".." to point to this script
 // This script relies on the php configuration directive track_vars being enabled
 // See chapter 4 of the PHP manual

print "Summary of information passed from " . urldecode($HTTP_REFERER) .
" <hr>HTTP Headers:";

$headers = getallheaders();
while (list($header, $value) = each($headers))
print "$header: $value \n";

print "<hr>";

print "Values submitted via POST method:";

if ($HTTP_POST_VARS)
{
for(reset($HTTP_POST_VARS); $key = key($HTTP_POST_VARS); next
($HTTP_POST_VARS))
 {
 if (is_array($HTTP_POST_VARS[$key]))
 {
 $num=count($HTTP_POST_VARS[$key]);
 for ($i=0; $i<$num; $i++)
 print "$$key"."[$i] = ".$HTTP_POST_VARS[$key][$i]." 
\n";
 }
 else
 {
 print "$$key = ".$HTTP_POST_VARS[$key]." \n";
 }
 }
}
print "<hr>";

print "Values submitted via GET method:";

if ($HTTP_GET_VARS)
{
for(reset($HTTP_GET_VARS); $key = key($HTTP_GET_VARS); next($HTTP_GET_VARS))
 {
 if (is_array($HTTP_GET_VARS[$key]))
 {
 $num=count($HTTP_GET_VARS[$key]);
 for ($i=0; $i<$num; $i++)
 print "$$key"."[$i] = ".$HTTP_GET_VARS[$key][$i]." 
\n";
 }
 else
 {
 print "$$key = ".$HTTP_GET_VARS[$key]." \n";
 }
 }
}
print "<hr>";

?>

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