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run code in 300+ PHP versions simultaneously
<?php class Tree { public $children = []; public $data; public function __construct($data, $children) { $this->data = $data; $this->children = $children; } } $children1 = new Tree(34, []); $children2 = new Tree(70, []); $rootNode = new Tree(12, [$children1, $children2]);
Output for 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.34, 7.3.0 - 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

preferences:
150.77 ms | 408 KiB | 5 Q