wachtwoord moet aan eisen voldoen

if(preg_match('#[A-Z\d]+#i', $password) && strlen($password) < MIn LENGTE){
     OK!
}else{
  Niet ok
} 

if(preg_match('#[A-Z\d]+#i', $password) && strlen($password) < MIn LENGTE){
     OK!
}else{
  Niet ok
}

<?php
if(!ereg('^(?=.*[A-Za-z])(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?!.*[^A-Za-z0-9])(?!.*\s).{6,12}$', $_POST['password']) OR strlen($_POST['password']) < 8) { echo 'niet ok'; } else { echo 'ok'; }
?>

<?php
if(!ereg('^(?=.*[A-Za-z])(?=.*[A-Z])(?=.*[a-z])(?=.*[0-9])(?!.*[^A-Za-z0-9])(?!.*\s).{6,12}$', $_POST['password']) OR strlen($_POST['password']) < 8) { echo 'niet ok'; } else { echo 'ok'; }
?>