Online PHP editor | output for 1uBdT

Output for 8.0.1 - 8.0.30, 8.1.0 - 8.1.32, 8.2.0 - 8.2.28, 8.3.0 - 8.3.19, 8.4.1 - 8.4.5: Array ( [1] => Array ( [id] => 1 [hid] => [title] => Root [children] => Array ( [0] => Array ( [id] => 2 [hid] => 1 [title] => Branch 1 [children] => Array ( [0] => Array ( [id] => 3 [hid] => 2 [title] => Leaf 1.1 ) [1] => Array ( [id] => 4 [hid] => 2 [title] => Leaf 1.2 ) ) ) [1] => Array ( [id] => 5 [hid] => 1 [title] => Branch 2 [children] => Array ( [0] => Array ( [id] => 6 [hid] => 5 [title] => Leaf 2.1 ) [1] => Array ( [id] => 7 [hid] => 5 [title] => Leaf 2.2 ) ) ) ) ) ) Array ( [1] => Array ( [id] => 1 [hid] => [title] => Root [children] => Array ( [0] => Array ( [id] => 3 [hid] => 1 [title] => Branch 1 ) [1] => Array ( [id] => 5 [hid] => 1 [title] => Branch 2 [children] => Array ( [0] => Array ( [id] => 6 [hid] => 5 [title] => Leaf 2.1 ) [1] => Array ( [id] => 7 [hid] => 5 [title] => Leaf 2.2 ) ) ) ) ) )