<?php

if(isset($_POST['cambia'])){

$parola = FilterText($_POST['lettera']);
$username = FilterText($_POST['nick']);
$password = FilterText($_POST['pass']);

$query = mysql_query ("SELECT username FROM users");
 $row = mysql_fetch_array($query);
 $user = $row['username'];

if ($user == $nick && $parol == $lettera){

mysql_query("UPDATE users SET password = '".$password."' WHERE username = '".$username."'");
echo "<center><font color=green>Password cambiata con Successo</font></font>";

} else{

echo "<center><font color=red>Username e Frase non corrispondono.</font></center>";

}
}

?>