3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php define(FD, fopen('/dev/null','rw')); stream_filter_append(FD, "any_user_filter");
Output for 4.4.3 - 4.4.9, 5.1.5 - 7.1.0
Notice: Use of undefined constant FD - assumed 'FD' in /in/OvLG8 on line 2 Warning: stream_filter_append(): unable to locate filter "any_user_filter" in /in/OvLG8 on line 3
Output for 4.3.2 - 4.4.2, 5.0.0 - 5.1.4
Notice: Use of undefined constant FD - assumed 'FD' in /in/OvLG8 on line 2 Warning: stream_filter_append(): unable to create or locate filter "any_user_filter" in /in/OvLG8 on line 3
Output for 4.3.0 - 4.3.1
Notice: Use of undefined constant FD - assumed 'FD' in /in/OvLG8 on line 2 Warning: stream_filter_append() [http://www.php.net/function.stream-filter-append]: unable to create or locate filter "any_user_filter" in /in/OvLG8 on line 3