问配置IIS以通过301重定向传递POST数据

EN

/* FOR test */

$_POST['value'] = 123;
$_POST['key']  = 888;
# Online $_POST check
$_GET['redirect'] = 'https://posttestserver.com/post.php'; 
/* END: FOR test */


if( filter_var($_GET['redirect'], FILTER_VALIDATE_URL) ) {

    if ( is_array($_POST) ) :

        echo '<form method="post" action="'. $_GET['redirect'] .'" name="f">';

        foreach($_POST as $i => $v){
            echo '<input type="hidden" name="'. $i .'" value="'. $v .'">';
        }

        echo '</form> <script> document.f.submit(); </script>';

    else : // IF _GET

        $tmp = $_GET['redirect'];
        unset($_GET['redirect']);
        $ur = http_build_query($_GET);
        header("Location: " . $tmp . '?' . $ur);
    endif;
}