3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php putenv("TEST='PHP_SELF'"); $test = getenv("TEST"); echo $test; $test = $_SERVER["REMOTE_ADDR"]; echo $test;
Output for 5.3.0 - 7.1.0
'PHP_SELF' Notice: Undefined index: REMOTE_ADDR in /in/FlWTN on line 5
Output for 4.3.0 - 5.2.17
'PHP_SELF' Notice: Undefined index: REMOTE_ADDR in /in/FlWTN on line 5