3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php function f() { var_dump(func_get_arg()); } var_dump(call_user_func_array('f', new stdClass())); var_dump(call_user_func_array('f', 42)); var_dump(call_user_func_array('f', null)); var_dump(call_user_func_array('f', 3.14));
Output for 7.0.0 - 7.1.0
Warning: call_user_func_array() expects parameter 2 to be array, object given in /in/CQ53T on line 7 NULL Warning: call_user_func_array() expects parameter 2 to be array, integer given in /in/CQ53T on line 10 NULL Warning: call_user_func_array() expects parameter 2 to be array, null given in /in/CQ53T on line 12 NULL Warning: call_user_func_array() expects parameter 2 to be array, float given in /in/CQ53T on line 15 NULL
Output for hhvm-3.12.0
Warning: __SystemLib\func_get_arg_sl() expects exactly 1 parameter, 0 given in /in/CQ53T on line 4 NULL NULL Warning: __SystemLib\func_get_arg_sl() expects exactly 1 parameter, 0 given in /in/CQ53T on line 4 NULL NULL Warning: __SystemLib\func_get_arg_sl() expects exactly 1 parameter, 0 given in /in/CQ53T on line 4 NULL NULL Warning: __SystemLib\func_get_arg_sl() expects exactly 1 parameter, 0 given in /in/CQ53T on line 4 NULL NULL
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.3.0 - 5.6.28
Warning: call_user_func_array() expects parameter 2 to be array, object given in /in/CQ53T on line 7 NULL Warning: call_user_func_array() expects parameter 2 to be array, integer given in /in/CQ53T on line 10 NULL Warning: call_user_func_array() expects parameter 2 to be array, null given in /in/CQ53T on line 12 NULL Warning: call_user_func_array() expects parameter 2 to be array, double given in /in/CQ53T on line 15 NULL
Output for 4.3.0 - 5.2.17
bool(false) NULL bool(false) NULL bool(false) NULL bool(false) NULL