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<?php $car = new Car(); echo $car->run(); //Car instead of Toyota $toyota = new Toyota(); echo $toyota->run(); //Car instead of Toyota class Car { public function run() { return call_user_func($this, 'getName'); // should call toyota } private static function getName() { return 'Car'; } } class Toyota extends Car { public static function getName() { return 'Toyota'; } }
Output for 8.0.10 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($callback) must be a valid callback, no array or string given in /in/F1eDd:11 Stack trace: #0 /in/F1eDd(4): Car->run() #1 {main} thrown in /in/F1eDd on line 11
Process exited with code 255.
Output for 8.0.0 - 8.0.9
Fatal error: Uncaught TypeError: call_user_func(): Argument #1 ($function) must be a valid callback, no array or string given in /in/F1eDd:11 Stack trace: #0 /in/F1eDd(4): Car->run() #1 {main} thrown in /in/F1eDd on line 11
Process exited with code 255.
Output for 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.30, 7.0.0 - 7.0.20, 7.1.0 - 7.1.7, 7.2.29 - 7.2.33, 7.3.16 - 7.3.33, 7.4.3 - 7.4.33
Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/F1eDd on line 11 Warning: call_user_func() expects parameter 1 to be a valid callback, no array or string given in /in/F1eDd on line 11
Output for 5.2.0 - 5.2.17
Catchable fatal error: Object of class Car could not be converted to string in /in/F1eDd on line 11
Process exited with code 255.
Output for 5.0.0 - 5.0.5, 5.1.0 - 5.1.6
Notice: Object of class Car to string conversion in /in/F1eDd on line 11 Warning: call_user_func(Object): First argument is expected to be a valid callback in /in/F1eDd on line 11 Notice: Object of class Toyota to string conversion in /in/F1eDd on line 11 Warning: call_user_func(Object): First argument is expected to be a valid callback in /in/F1eDd on line 11
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/F1eDd on line 10
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.3.11, 4.4.0 - 4.4.1
Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/F1eDd on line 10
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/F1eDd on line 10
Process exited with code 255.
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