How do I format Nested Set Model data into an array?

Question

Let\'s dig in the main problem right away, I have the input like this

$category = array(
  \'A\' => array(\'left\' => 1, \'right\' => 8),
  \'B\' =&         


        

Answer 1

I little modified Stiven's code.

public function createTree($category, $left = 0, $right = null) {
    $tree = array();
    foreach ($category as $cat => $range) {
        if ($range['clf'] == $left + 1 && (is_null($right) || $range['crt'] < $right)) {
            $tree[$cat]= array();
            $tree[$cat]['title']=$range['title'];
            if($range['crt']-$range['clf']>1){
                $tree[$cat]['sub'] = $this->createTree($category, $range['clf'], $range['crt']);
            }
            $left = $range['crt'];
        }
    }
    return $tree;
}