"JPinkman", "password" => "123456", "name" => "Jesse", "surname" => "Pinkman"); $users[] = array("username" => "WWhite", "password" => "123456", "name" => "Walter", "surname" => "White"); $users[] = array("username" => "SGoodman", "password" => "123456", "name" => "Saul", "surname" => "Goodman"); $users[] = array("username" => "GFring", "password" => "123456", "name" => "Gustavo", "surname" => "Fring"); while(list($key, $val) = each($users)) { if($val["username"] == $_POST["username"] and $val["password"] == $_POST["password"]) { return $val; } } return false; } if(isset($_POST["username"]) and isset($_POST["password"]) and !empty($_POST["username"]) and !empty($_POST["password"])) { $user = checkUser(); if(!empty($user)) { echo "

Welcome " . $user["name"] . ".

"; } else { echo "

Incorrect username or password. Please check your details and try again.

"; authForm(); } } else authForm(); ?>