我正在使用curl來訪問 php 來執行POST方法。問題是使用該POST方法，if它不起作用，我得到參數丟失的錯誤。php代碼：if(isTheseParametersAvailable(array('title','email', 'message'))){if(isset($_POST['title']) and isset($_POST['message'])){        //creating a new push        //if the push don't have an image give null in place of image        $push = new Push(                $_POST['title'],                $_POST['message'],                null            );    //getting the push from push object    $mPushNotification = $push->getPush();     //getting the token from database object      echo $devicetoken = $db->getTokenByEmail('[email protected]');    //creating firebase class object     $firebase = new Firebase();     //sending push notification and displaying result     echo $firebase->send($devicetoken, $mPushNotification);}else{    $response['error']=true;    $response['message']='Parameters missing';}郵遞員截圖：isThereParametersAvailable功能：function isTheseParametersAvailable($params){    foreach($params as $param){        if(!isset($_POST[$param])){            return false;         }    }    return true; }