Developer-Online Tutorial Announcement: Creating a Contact form in Dreamweaver from scratch.

That was a great note, thank you, i just updating the submit.php file to check for such security gaps

Here is some updates:
-----------------------------------

// Remove $_COOKIE elements from $_REQUEST.
if(count($_COOKIE)){foreach(array_keys($_COOKIE) as $value){unset($_REQUEST[$value]);}}

// Check all fields for an email header.
function recursive_array_check_header($element_value)
{
global $set;
if(!is_array($element_value)){if(preg_match("/(%0A|%0D|\n+|\r+)(content-type:|to:|cc:|bcc:)/i",$element_value)){$set = 1;}}
else
{
foreach($element_value as $value){if($set){break;} recursive_array_check_header($value);}
}
}
recursive_array_check_header($_REQUEST);
if($set){$errors[] = "You are prevented from sending an email header";}
unset($set);

// Check referrer is from same site.
if(!(isset($_SERVER['HTTP_REFERER']) && !empty($_SERVER['HTTP_REFERER']) && stristr($_SERVER['HTTP_REFERER'],$_SERVER['HTTP_HOST']))){$errors[] = "You must activate referrer login to use the form";}

The new updated files are attached to this message, also it can be downloaded from here directly...

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Best Regards
Waleed Barakat
Developer-Online Creator and programmer