PHP post get

$_SERVER['REQUEST_METHOD']該變量中存儲的是表單提交的方式。默認爲get可用isset($_POST["表單名或字段名"]) 或者$_SERVER['REQUEST_METHOD']=="POST"判斷 試過以下是無效的：用$_REQUEST_METHOD 來判斷 ,如:<?phpif($_REQUEST_METHOD == “POST”){echo “post:”.$_POST['firstName'].”—”.$_POST["birthday"];