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<?php class Bear { private $age = 0; public function setAge($age) { if ($age < 0) { throw new Exception('Bear cannot have negative age dumbass'); } $this->age = $age; } } $bear1 = new Bear(); $bear1->setAge(25); $bear2 = new Bear(); $bear2->setAge(-10); var_dump($bear1); var_dump($bear2);

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52.21 ms | 402 KiB | 5 Q