Online PHP editor | output for CgGcv

@ 2015-06-10T17:12:02Z

<?php

$category = array(
    array('left' => 1,  'right' => 11, 'x' => 'A'),
    array('left' => 2,  'right' => 4,  'x' => 'B'),
    array('left' => 5,  'right' => 10, 'x' => 'C'),
    array('left' => 6,  'right' => 7,  'x' => 'D'),
    array('left' => 8,  'right' => 9,  'x' => 'E'),
    array('left' => 12, 'right' => 13, 'x' => 'F'),
);

function createTree ($category, $left = 0, $right = null) 
{
    $tree = array();
    foreach ($category as $cat => $data) 
    {
        if ($data['left'] == $left + 1 && (is_null($right) || $data['right'] < $right)) 
        {
            $tree[$cat] = createTree($category, $data['left'], $data['right']);
            $left = $data['right'];
        }
    }
    return $tree;
}

$tree = createTree ($category);
print_r($tree);

Output for 4.3.0 - 4.3.11, 4.4.0 - 4.4.9, 5.0.0 - 5.0.5, 5.1.0 - 5.1.6, 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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 - 8.2.18, 8.3.0 - 8.3.4, 8.3.6: Array ( [0] => Array ( [1] => Array ( ) [2] => Array ( [3] => Array ( ) [4] => Array ( ) ) ) [5] => Array ( ) )
Output for 8.3.5: Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0 Array ( [0] => Array ( [1] => Array ( ) [2] => Array ( [3] => Array ( ) [4] => Array ( ) ) ) [5] => Array ( ) )

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