$HTTP_POST_VARS naughty naughty

[Anon]

code:--------------------------------------------------------------------------------
<?php
while (list($k, $v) = each($HTTP_POST_VARS))
{
print(\"<input type=hidden name=\\"$k\\" value=\\"\".htmlspecialchars($v).\"\\">\n\");
}

?>

There is one problem, i do not require it to print certain variables as hidden fields. Thus i need a way to exclude certain passed variables from being added as hidden fields. For example i do not want:

either:
<input type=\"submit\" name=\"Submit\" value=\"Submit\">
or:
<input type=\"hidden\" name=\"stage\" value=\"3\">

added as hidden fields.

Could you suggest a way to exclude variables from being added.

[Anon]

The first solution that pops to mind is to simply use an if...next statement. i.e.,

while(...){
if ($k=="Submit"||$k=="stage) next;
print ...;
}

If you want to exlude a bunch of items you might consider building a hash of excluded post vars then simply testing for the existence of a key matching the var you want to exclude:

$exclude=array("submit"=>1,"stage"=>1,...);

while(...){
if (array_key_exists($key,$exclude)) next;
print ...;
}