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run code in 150+ php & hhvm versions
Bugs & Features
<?php call_user_func_array('echo', array('a', 'b', 'c'));
Output for 5.3.0 - 7.1.0
Warning: call_user_func_array() expects parameter 1 to be a valid callback, function 'echo' not found or invalid function name in /in/RIvfg on line 2
Output for 5.0.0 - 5.2.17
Warning: call_user_func_array(): First argument is expected to be a valid callback, 'echo' was given in /in/RIvfg on line 2
Output for 4.3.2 - 4.4.9
Warning: call_user_func_array(): First argumented is expected to be a valid callback, 'echo' was given in /in/RIvfg on line 2
Output for 4.3.0 - 4.3.1
Warning: call_user_func_array() [http://www.php.net/function.call-user-func-array]: First argumented is expected to be a valid callback, 'echo' was given in /in/RIvfg on line 2