3v4l.org

run code in 300+ PHP versions simultaneously
<?php echo join(' ', array_keys($GLOBALS));
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
_GET _POST _COOKIE _FILES argv argc _SERVER
Output for 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
_GET _POST _COOKIE _FILES argv argc _SERVER GLOBALS
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29
GLOBALS _ENV HTTP_ENV_VARS argv argc _POST HTTP_POST_VARS _GET HTTP_GET_VARS _COOKIE HTTP_COOKIE_VARS _SERVER HTTP_SERVER_VARS _FILES HTTP_POST_FILES _REQUEST
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
argv argc HTTP_POST_VARS _POST HTTP_GET_VARS _GET HTTP_COOKIE_VARS _COOKIE HTTP_SERVER_VARS _SERVER HTTP_ENV_VARS _ENV HTTP_POST_FILES _FILES _REQUEST GLOBALS
Output for 4.3.0 - 4.3.1
HTTP_POST_VARS _POST HTTP_GET_VARS _GET HTTP_COOKIE_VARS _COOKIE HTTP_SERVER_VARS _SERVER HTTP_ENV_VARS _ENV HTTP_POST_FILES _FILES _REQUEST GLOBALS

preferences:
258.11 ms | 401 KiB | 457 Q