generate-php-status-code

<?php
    ini_set('error_reporting', E_ALL);
    ini_set('display_errors', 1);
    ini_set('display_startup_errors', 1);

    $code=0;
    if (empty($_GET))
    {
        echo "Use ?code=http_status_code";
    }
    else
    {
        if (!isset($_GET['code']))
        {
            echo "Use ?code=http_status_code";
        }
        else
        {
            $code=$_GET['code'];
            if (($code<100)||($code>599))
            {
                echo "Wrong code (min 100, max 599)";
            }
            else
            {
                echo $code;
                http_response_code($code);
            }
        }
    }
?>