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run code in 300+ PHP versions simultaneously
<?php class Foo { public $a = 1; protected $b = 1; public function __set($key, $val) { $this->$key = $val; } } $f = new Foo(); $f->a = 2; $f->b = 2; print_r($f);

preferences:
32.83 ms | 402 KiB | 5 Q