php代码审计 php逻辑题 web题

Question

为什么在url后面加 ?xxx= 是错的，请问该怎么加呀？

<?php
error_reporting(0);
include("flag.php");
if(isset($_GET['xxx'])){
if(strcmp($_GET['xxx'],$flag)==0)
die('Flag:'.$flag);
else
print 'No';
}
show_source("php1.php");
?>

Answer 1

https://blog.csdn.net/yisosooo/article/details/77862905