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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(); $obj->push($queue,1); ?>
Output for git.master, git.master_jit, rfc.property-hooks
Warning: Undefined variable $queue in /in/UfhOj on line 22 Warning: Undefined variable $queue in /in/UfhOj on line 10 Deprecated: Creation of dynamic property PushAndPull::$ is deprecated in /in/UfhOj on line 10 Fatal error: Uncaught TypeError: array_push(): Argument #1 ($array) must be of type array, null given in /in/UfhOj:10 Stack trace: #0 /in/UfhOj(10): array_push(NULL, NULL) #1 /in/UfhOj(22): PushAndPull->push(NULL, 1) #2 {main} thrown in /in/UfhOj on line 10
Process exited with code 255.

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