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run code in 300+ PHP versions simultaneously
<?php class Bar { private $foo = 0; public function foo() { return $this->foo; } public function __construct() { $this->foo = 1; } public function comp() { return $this->foo() === static::foo(); } } $bar = new Bar; var_dump($bar->comp());

preferences:
40.58 ms | 402 KiB | 5 Q