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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 - 5.6.28, 7.0.0 - 7.1.0
Warning: stream_filter_append(): unable to locate filter "any_user_filter" in /in/2UMsV on line 3
Output for hhvm-3.10.0 - 3.12.0
Warning: Constants may only evaluate to scalar values in /in/2UMsV on line 2 Notice: Use of undefined constant FD - assumed 'FD' in /in/2UMsV on line 3 Warning: stream_filter_append() expects parameter 1 to be resource, string given in /in/2UMsV on line 3
Output for 4.3.2 - 4.4.2, 5.0.0 - 5.1.4
Warning: stream_filter_append(): unable to create or locate filter "any_user_filter" in /in/2UMsV on line 3
Output for 4.3.0 - 4.3.1
Warning: stream_filter_append() [http://www.php.net/function.stream-filter-append]: unable to create or locate filter "any_user_filter" in /in/2UMsV on line 3