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<?php class Base { protected $quadrat; public function getQuadrat() { return $this->quadrat; } } class Test { public function malzwei($n) { return $n * 2; } public function quadrat($n) { return $n * $n; } } $t = new Test(); echo call_user_func($t->getQuadrat(), 3); var_dump(array_map($t->getQuadrat(), array(1, 2, 3, 4)));

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32.19 ms | 402 KiB | 5 Q