How to build unlimited level of menu through PHP and mysql

Question

Well, to build my menu my menu I use a db similar structure like this

  2  Services                  0
  3  Photo Gallery             0
  4  Home                         


        

Answer 1

I found this way, working with Yii Framework.

$children = array();

foreach($model as $k => $item){
    if(empty($item->cn_id_menu_padre))
        $children[$item->cn_id] = $item->attributes;
    else
        $children[$item->cn_id_menu_padre]['hijos'][] = $item->attributes;
}

foreach($children as $k=>$child){
    if(array_key_exists('hijos',$child))
    {
        echo 'li y dentro ul
';
        foreach($child['hijos'] as $hijo){
            echo 'li
';
        }
    }
    else
        echo 'li
';
}

In case that you need one more level, you could make another level in children array like hijos_de_hijos and do the comparison then in the if statement.

Oh, of course, to compare if cn_id_menu_padre is empty, the value in the database should be null.