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run code in 300+ PHP versions simultaneously
<?php class MyParent { protected $x = "parent"; public function __construct() { $this->x = "parent - construct"; } } class MyChild extends MyParent { protected $x = "child"; public function __construct() { var_dump($this->x); $this->x = "child - construct"; var_dump($this->x); $closure = function () { var_dump($this->x); }; $closure = $closure->bindTo($this, parent::class); $closure(); } } new MyChild;
Output for 7.0.0 - 7.0.23, 7.1.0 - 7.1.20, 7.2.6 - 7.2.33, 7.3.16 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.33, 8.2.0 - 8.2.29, 8.3.0 - 8.3.25, 8.4.1 - 8.4.12
string(5) "child" string(17) "child - construct" string(17) "child - construct"

preferences:
142.25 ms | 408 KiB | 5 Q