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<?php $v = 18; function f( &$p ) { $p = 36; return $p; } echo call_user_func_array(‘f’,array(&$v)); // 36
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Fatal error: Uncaught Error: Undefined constant "‘f’" in /in/QDRv6:7 Stack trace: #0 {main} thrown in /in/QDRv6 on line 7
Process exited with code 255.
Output for 7.2.0 - 7.2.33, 7.3.12 - 7.3.33, 7.4.0 - 7.4.33
Warning: Use of undefined constant ‘f’ - assumed '‘f’' (this will throw an Error in a future version of PHP) in /in/QDRv6 on line 7 Warning: call_user_func_array() expects parameter 1 to be a valid callback, function '‘f’' not found or invalid function name in /in/QDRv6 on line 7
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.20
Notice: Use of undefined constant ‘f’ - assumed '‘f’' in /in/QDRv6 on line 7 Warning: call_user_func_array() expects parameter 1 to be a valid callback, function '‘f’' not found or invalid function name in /in/QDRv6 on line 7
Output for 5.0.0 - 5.0.5, 5.1.1 - 5.1.6, 5.2.0 - 5.2.17
Notice: Use of undefined constant ‘f’ - assumed '‘f’' in /in/QDRv6 on line 7 Warning: call_user_func_array(): First argument is expected to be a valid callback, '‘f’' was given in /in/QDRv6 on line 7
Output for 5.1.0
Fatal error: fatal flex scanner internal error--end of buffer missed in /in/QDRv6 on line 7
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Notice: Use of undefined constant ‘f’ - assumed '‘f’' in /in/QDRv6 on line 7 Warning: call_user_func_array(): First argumented is expected to be a valid callback, '‘f’' was given in /in/QDRv6 on line 7
Output for 4.3.0 - 4.3.1
Notice: Use of undefined constant ‘f’ - assumed '‘f’' in /in/QDRv6 on line 7 Warning: call_user_func_array() [http://www.php.net/function.call-user-func-array]: First argumented is expected to be a valid callback, '‘f’' was given in /in/QDRv6 on line 7

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