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<?php function foo(&$e) { var_dump($e); } call_user_func_array("foo", array(2)); $a = array(2); call_user_func_array("foo", $a); ?>
Output for hhvm-3.10.0 - 3.12.0, 7.1.0
Warning: Parameter 1 to foo() expected to be a reference, value given in /in/YlLE7 on line 5 int(2) Warning: Parameter 1 to foo() expected to be a reference, value given in /in/YlLE7 on line 7 int(2)
Output for 7.0.0 - 7.0.14
Warning: Parameter 1 to foo() expected to be a reference, value given in /in/YlLE7 on line 5 Warning: Parameter 1 to foo() expected to be a reference, value given in /in/YlLE7 on line 7
Output for 5.3.0 - 5.6.28
int(2) Warning: Parameter 1 to foo() expected to be a reference, value given in /in/YlLE7 on line 7
Output for 4.3.0 - 5.2.17
int(2) int(2)