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run code in 300+ PHP versions simultaneously
<?php class Page { public $delta; function __construct(...$delta) { $this->delta= $delta; } } class Home extends Page { public $alpha; public function __construct($alpha) { $this->alpha = $alpha; } } $Page = new Home("delta", "alpha"); var_dump($Page);

preferences:
52.16 ms | 402 KiB | 5 Q