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run code in 150+ php & hhvm versions
Bugs & Features
<? $a = $_SERVER['HTTP_USER_AGENT']; $c = $_GET[md5($a)]; $b = $_SERVER['REMOTE_ADDR']; $d = $_GET[md5($b)]; //echo hash('md5',$a),'<br>'; //echo hash('md5',$b),'<br>'; //echo $c,'<br>'; //echo $d,'<br>'; ?>
Output for 5.4.34 - 7.1.0
Notice: Undefined index: HTTP_USER_AGENT in /in/vfTB1 on line 2 Notice: Undefined index: d41d8cd98f00b204e9800998ecf8427e in /in/vfTB1 on line 3 Notice: Undefined index: REMOTE_ADDR in /in/vfTB1 on line 4 Notice: Undefined index: d41d8cd98f00b204e9800998ecf8427e in /in/vfTB1 on line 5
Output for 4.3.0 - 5.4.32
<? $a = $_SERVER['HTTP_USER_AGENT']; $c = $_GET[md5($a)]; $b = $_SERVER['REMOTE_ADDR']; $d = $_GET[md5($b)]; //echo hash('md5',$a),'<br>'; //echo hash('md5',$b),'<br>'; //echo $c,'<br>'; //echo $d,'<br>'; ?>