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run code in 300+ PHP versions simultaneously
<?php class A { public $a; protected $b; private $c; } class B extends A {} $a = new A; $b = new B; $a->a = 1; $b->a = 2; var_dump($a == $b); var_dump($a === $b);

preferences:
46.43 ms | 402 KiB | 5 Q