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<?php class PushAndPull { private $queue=array(); public function push($push) { array_push($this->$queue,$push); } public function pull() { return array_shift($this->$queue); } } $obj = new PushAndPull(); $obj->$queue; $obj->push(1);
Output for 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Warning: Undefined variable $queue in /in/jIaVh on line 22 Warning: Undefined property: PushAndPull::$ in /in/jIaVh on line 22 Warning: Undefined variable $queue in /in/jIaVh on line 10 Deprecated: Creation of dynamic property PushAndPull::$ is deprecated in /in/jIaVh on line 10 Fatal error: Uncaught TypeError: array_push(): Argument #1 ($array) must be of type array, null given in /in/jIaVh:10 Stack trace: #0 /in/jIaVh(10): array_push(NULL, 1) #1 /in/jIaVh(23): PushAndPull->push(1) #2 {main} thrown in /in/jIaVh on line 10
Process exited with code 255.
Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28
Warning: Undefined variable $queue in /in/jIaVh on line 22 Warning: Undefined property: PushAndPull::$ in /in/jIaVh on line 22 Warning: Undefined variable $queue in /in/jIaVh on line 10 Fatal error: Uncaught TypeError: array_push(): Argument #1 ($array) must be of type array, null given in /in/jIaVh:10 Stack trace: #0 /in/jIaVh(10): array_push(NULL, 1) #1 /in/jIaVh(23): PushAndPull->push(1) #2 {main} thrown in /in/jIaVh on line 10
Process exited with code 255.
Output for 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: queue in /in/jIaVh on line 22 Notice: Undefined property: PushAndPull::$ in /in/jIaVh on line 22 Notice: Undefined variable: queue in /in/jIaVh on line 10 Warning: array_push() expects parameter 1 to be array, null given in /in/jIaVh on line 10
Output for 7.3.32 - 7.3.33
Warning: array_push() expects parameter 1 to be array, null given in /in/jIaVh on line 10
Output for 7.0.0 - 7.0.33
Notice: Undefined variable: queue in /in/jIaVh on line 22 Fatal error: Uncaught Error: Cannot access empty property in /in/jIaVh:22 Stack trace: #0 {main} thrown in /in/jIaVh on line 22
Process exited with code 255.
Output for 5.0.5, 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: queue in /in/jIaVh on line 22 Fatal error: Cannot access empty property in /in/jIaVh on line 22
Process exited with code 255.
Output for 5.0.4
Notice: Undefined variable: queue in /in/jIaVh on line 22 Notice: Undefined property: PushAndPull::$ in /in/jIaVh on line 22 Notice: Undefined variable: queue in /in/jIaVh on line 10 Warning: array_push(): First argument should be an array in /in/jIaVh on line 10
Output for 5.0.0 - 5.0.3
Notice: Undefined variable: queue in /in/jIaVh on line 22 Notice: Undefined property: PushAndPull::$ in /in/jIaVh on line 22 Notice: Undefined variable: queue in /in/jIaVh on line 10 Warning: array_push(): First argument should be an array in /in/jIaVh on line 10
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/jIaVh on line 5
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/jIaVh on line 5
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/jIaVh on line 5
Process exited with code 255.

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