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run code in 300+ PHP versions simultaneously
<?php class Foo { public $a = 1; protected $b = 2; private $c = 3; public function test() { $ao = new ArrayObject($this); foreach ($ao as $k => $v) { var_dump($k, $v); } } } (new Foo)->test();
Output for 7.0.0 - 7.0.20, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.19, 8.3.0 - 8.3.7
string(1) "a" int(1)

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