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run code in 300+ PHP versions simultaneously
<?php error_reporting(E_ALL); ini_set('display_errors', 'On'); class Kitchen { private $value = 'cheese'; } $k = new Kitchen(); $m = function(){ echo 'called me. Value is ' . $this->value; }; Closure::bind($m, null, $kitchen); $k->m();

preferences:
40.48 ms | 402 KiB | 5 Q