[GWCTF 2019]枯燥的抽獎

查看源碼，發現check.php 訪問check.php得到源碼 <?php #這不是抽獎程序的源代碼！不許看！ header("Content-Type: text/html;charset=utf-8"); session_start(); if(!isset($_SESSION['seed'])){ $_SESSION['seed']=rand(0,999999999); } mt_sra

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