尝试是否有$ _GET值

Question

有一种方法可以确定在GET请求中是否传递了$ _GET值（不带有特定键）？我不确定语法

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有效

Answer 1

$_GET是数组，因此请使用count而不是isset。

<?php
  if(count($_GET) >0){
   //valid
 }
?>