The following is an excerpt of a PHP script within a HTML file. I would like to be able to alter the variable when I am being served the HTML file. Is there anyway to do so? Most vulnerabilities i found online are exploits for $_GET.
if (isset ($_POST['variable']))
{$temp = $_POST['variable'];
if (strlen($temp) == 20)
{
....
} else echo "Failed";
...
}