php

Question

我已经在PHP中创建了一个会话数组，并给出了条件：如果已经创建了会话，则推入该数组；如果未创建，则创建会话并向其中推入行，但是当我检查条件时，我收到的会话不是创建

<?php
  session_start();
  $quiz_session = Array ( [0] => Array ( [ID] => 41 [Question] => abc ) );
  if (isset($_SESSION["quiz_question"])) {
     $_SESSION['quiz_question'] = array();
     $quiz_question = $_SESSION['quiz_question'];
     array_push($_SESSION['quiz_question'], array('Question' => $quiz_session[0]['Question'],'selected' => $Answer));
  }else{
     array_push($_SESSION['quiz_question'], array('Question' => 
     $quiz_session[0]['Question'],'selected' => $Answer));
   }
   print_r($_SESSION['quiz_question']);
?>

有人可以帮我吗