Problems with Serverside Validations

Hi,
I'm having really problems trying to use the Serverside Validations for a file extension.

Here is what the code is showing me at the moment:

<?php
if ($_SERVER["REQUEST_METHOD"] == "POST") {
$WAFV_Redirect = "";
$_SESSION['WAVT_memformsInsert_455_Errors'] = "";
if ($WAFV_Redirect == "") {
$WAFV_Redirect = $_SERVER["PHP_SELF"];
}
$WAFV_Errors = "";
$WAFV_Errors .= WAValidateFE(((isset($_FILES["file_memform"]))? preg_replace('/^.*\./', '', $_FILES["file_memform"]["name"]) :"") . "",".pdf",true,2);

if ($WAFV_Errors != "") {
PostResult($WAFV_Redirect,$WAFV_Errors,"memformsInsert_455");
}
}
?>

I'm fairly green to all this, and followed all the instructions, plus searched the forums here, but the form will not allow me to upload anything at all with this validation added in.

Is there anything that anyone can see is wrong...??

Thanks for your help/

What extensions are you trying to validate for?

Hi Jimmy,
Thanks for your reply!
I'm unable to validate any extension - .jpg, .jpeg, .pdf, .doc, .docx....anything!

All that happens is the page trys to upload the file and then the page refreshes with blank form....nothing....

Thanks for your help,

Martin

So the way that server side validations work is that you apply it to the page that the form posts to. Then forward back to the form page if there are any validation errors. Then on the form page, you would apply the validation show if server behavior to display the error message. Is this how you've applied the server side validations?