CTF-23解题思路
## 解码后得到源码#CTL{\n}#CTL{\n}```php#CTL{\n}<?php#CTL{\n}error_reporting(0);#CTL{\n} #CTL{\n}?>#CTL{\n}<html lang="zh-CN">#CTL{\n}#CTL{\n}<head&
CTF-21解题思路
## 源码分析：#CTL{\n}#CTL{\n}```php#CTL{\n}<?php#CTL{\n}if (isset($_GET['a']) and isset($_GET['b'])) {#CTL{\n} #CTL{\n} if ($_GET['a'] != $_GET['b'])#CTL{\n} if (md5($_GET['a']) == md5(
CTF-20解题思路
源码分析：<?php$md51 = md5('QNKCDZO');$a = <span class="label label-primary">@$_GET['a'];#CTL{n}$md52</span> = <span class="labe
CTF-19解题思路
## 源码分析：#CTL{\n}#CTL{\n}```php#CTL{\n}<?php#CTL{\n}header('Content-type:text/html;charset=utf-8');#CTL{\n}error_reporting(0);#CTL{\n}highlight_file(__file__);#CTL{\n}#CTL{\n}//level 1#CTL{\n}if
CTF-18解题思路
### 源码分析：#CTL{\n}#CTL{\n}```#CTL{\n}<?php#CTL{\n}highlight_file(__FILE__);#CTL{\n}error_reporting(0);#CTL{\n}#CTL{\n}class a#CTL{\n}{#CTL{\n} public $uname;#CTL{\n} public $password;#CTL{\n}
CTF-16解题思路
## 源码分析：#CTL{\n}#CTL{\n}```php#CTL{\n}<?php#CTL{\n}highlight_file(__FILE__);#CTL{\n}class main{#CTL{\n} public $settings;#CTL{\n} public $params;#CTL{\n} public function __construct(){
CTF-15解题思路
## 源码分析：#CTL{\n}```php#CTL{\n}`<?php#CTL{\n}highlight_file('index.php');#CTL{\n}include('flag.php');#CTL{\n}if(eregi("hackerDJ",$_GET["id"])) {#CTL{\n} echo
CTF-14解题思路
## 源码分析：#CTL{\n}```php#CTL{\n}<?php #CTL{\n}highlight_file('index.php');#CTL{\n}include('flag.php');#CTL{\n}if (isset ($_GET['password'])) #CTL{\n}{#CTL{\n} # password必须只包含保护数字和字母#CTL{\n} if
CTF-13解题思路
## 源码分析：#CTL{\n}#CTL{\n}```PHP#CTL{\n}<?php#CTL{\n} $flag="flag{xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx}";#CTL{\n} session_start();#CTL{\n} $requset = array_merge
CTF-11解题思路
## 源码分析：#CTL{\n}```php#CTL{\n}foreach ($_REQUEST as $key => $value) {#CTL{\n} if(preg_match('/[a-zA-Z]/i', $value)) die('Hello Hack.');#CTL{\n} }#CTL{\n}```#CTL{\n}**利用解析时，按照环境变量，ge