You can use the following method to determine
Copy code The code is as follows:
if(is_array($_GET)&&count($_GET)> ;0)//Judge whether there is a Get parameter
{
if(isset($_GET["para"]))//Judge whether the required parameters exist. isset is used to detect whether the variable is set and returns true or false
{
$para=$_GET["para"];//Exists
}
}
http://www.bkjia.com/PHPjc/765159.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/765159.htmlTechArticleYou can use the following method to judge the copied code. The code is as follows: if(is_array($_GET)count($_GET)0) //Judge whether there is a Get parameter { if(isset($_GET["para"]))//Judge whether the required parameters exist,...