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<?php function html($value) { return htmlentities($value); } class Foo { function html($value) { return htmlentities($value); } } $value = '123'; $obect = new Foo(); htmlentities($value); html($value); $object->$func($value); call_user_func($func, $value); call_user_func(array($object, 'html'), $value); call_user_func_array($func, array($value)); call_user_func_array(array($object, 'html'), array($value));
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
Warning: Undefined variable $func in /in/gfa9M on line 22 Fatal error: Uncaught Error: Method name must be a string in /in/gfa9M:22 Stack trace: #0 {main} thrown in /in/gfa9M on line 22
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33
Notice: Undefined variable: func in /in/gfa9M on line 22 Fatal error: Uncaught Error: Method name must be a string in /in/gfa9M:22 Stack trace: #0 {main} thrown in /in/gfa9M on line 22
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Method name must be a string in /in/gfa9M:22 Stack trace: #0 {main} thrown in /in/gfa9M on line 22
Process exited with code 255.
Output for 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Notice: Undefined variable: func in /in/gfa9M on line 22 Fatal error: Method name must be a string in /in/gfa9M on line 22
Process exited with code 255.
Output for 5.0.4 - 5.0.5
Notice: Undefined variable: func in /in/gfa9M on line 22 Notice: Undefined variable: object in /in/gfa9M on line 22 Fatal error: Method name must be a string in /in/gfa9M on line 22
Process exited with code 255.
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: func in /in/gfa9M on line 22 Notice: Undefined variable: object in /in/gfa9M on line 22 Fatal error: Method name must be a string in /in/gfa9M on line 22
Process exited with code 255.
Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
Notice: Undefined variable: func in /in/gfa9M on line 22 Fatal error: Call to a member function on a non-object in /in/gfa9M on line 22
Process exited with code 255.
Output for 4.3.0 - 4.3.1
Notice: Undefined variable: func in /in/gfa9M on line 22 Fatal error: Call to a member function on a non-object in /in/gfa9M on line 22

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