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<?php class x { public $d = ['test' => null]; public function __set($k,$v) { var_dump(['set', $k, $v]); $this->d[$k] = $v; } public function __get($k) { var_dump(['get', $k]); return $this->d[$k]; } } $x = new x; $x->test++; var_dump($x);

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78.57 ms | 402 KiB | 5 Q