3v4l.org

run code in 200+ php & hhvm versions
Bugs & Features
<?php  //whether ip is from share internet  if (!empty($_SERVER['HTTP_CLIENT_IP']))       {      $ip_address = $_SERVER['HTTP_CLIENT_IP'];    }  //whether ip is from proxy  elseif (!empty($_SERVER['HTTP_X_FORWARDED_FOR']))      {      $ip_address = $_SERVER['HTTP_X_FORWARDED_FOR'];    }  //whether ip is from remote address  else    {      $ip_address = $_SERVER['REMOTE_ADDR'];    }  echo $ip_address;  ?> 

Shows result from various feature-branches currently under review from the php developers. Contact me to have additional branches featured.

Output for Typed properties v2
Notice: Use of undefined constant php   - assumed 'php  ' in /in/Vn4aJ on line 1  
Output for Array change keys
Notice: Use of undefined constant php   - assumed 'php  ' in /in/Vn4aJ on line 1  
Output for Lexical anon
Notice: Use of undefined constant php   - assumed 'php  ' in /in/Vn4aJ on line 1  

Archived branches

Once feature-branches are merged or declined, they are no longer available. Their functionality (when merged) can be viewed from the main output page