ok, I'll give a few lines for ya 🙂
<?php /* ------------------------- */
$newpass = rand(100000,999999);
$login = $_POST['login'];
$city = $_POST['stad'];
$email = $_POST['email'];
$recruiter = $rec;
$ctype = $_POST['ctype'];
${"select$ctype"} = "selected";
if(isset($_POST['submit'])) {
$message = Array(
"<b>Your login may only contain: A-Z, a-z, 0-9, _ - </b><BR><BR>",
"<b>Fill in a valid Email-Address</b><BR><BR>",
"<b>Select a Criminal Type</b><BR><BR>",
"<b>That login already exists in the database</b><BR><BR>",
"<b>That email already exists in the database</b><BR><BR>",
"<b>The Recruiter name can only contain A-Z, a-z, 0-9, _ - </b><BR><BR>",
$msgnum = -1;
if(preg_match('/^.+@.+\..+$/',$email) == 0)
$msgnum = 2;
else {
$dbres = mysql_query("SELECT `id` FROM `users` WHERE `login`='{$login}'");
if(mysql_num_rows($dbres) > 0)
$msgnum = 4;
$dbres = mysql_query("SELECT `id` FROM `users` WHERE `email`='{$email}'");
if(mysql_num_rows($dbres) > 0)
$msgnum = 5;
if(preg_match('/^[a-zA-Z0-9_\-]+$/',$login) == 0)
$msgnum = 6;