检查$ _POST是否为空并返回1条消息

Question

I have a foreach loop to check if there is any empty post but i get 3x "empty" i only want to return 1 message if any post data is empty I have this PHP code.

if (isset($_POST["registreer"]))
    {
        unset($_POST["registreer"]);

        foreach ($_POST as $input => $value)
        {
            if (empty($_POST[$input]))
            {
                echo "empty";
            }
        }
    }

Answer 1

You won't need foreach, instead you can use in_array()

if (in_array("", $_POST)) {
   echo 'Whatever';
}