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<?php class A { private array $d = [ 'a' => 1, 'b' => 2, ]; public function all(): array { return $this->d; } } class B extends A { public function push($k, $v): void { $this->d[$k] = $v; } } $b = (new B()); $b->push('c', 3); var_dump($b->all());
Output for git.master, git.master_jit, rfc.property-hooks
Deprecated: Creation of dynamic property B::$d is deprecated in /in/2mVuc on line 16 array(2) { ["a"]=> int(1) ["b"]=> int(2) }

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