php - Recursive function in Laravel 5.2 -

i want make recursive function , pass view build category, sub-category in laravel 5.2 , how create route , view , contrller code ..... code ..can me ?

<?php  mysql_connect('localhost', 'root','123');  mysql_select_db('test');      $qry="select * treeview_items";   $result=mysql_query($qry);   $arraycategories = array();      while($row = mysql_fetch_assoc($result))   {        $arraycategories[$row['id']] = array("parent_id" => $row['parent_id'], "name" =>$row['name']);      }      function createtree($array, $currentparent, $currlevel = 0, $prevlevel = -1) {    foreach ($array $categoryid => $category) {       if ($currentparent == $category['parent_id']) {                                if ($currlevel > $prevlevel) echo " <ul class='tree'> ";         if ($currlevel == $prevlevel) echo " </li> ";        echo '<li> <a href="#">'.$category['name'].'</a > ';        if ($currlevel > $prevlevel) { $prevlevel = $currlevel; }        $currlevel++;         createtree ($array, $categoryid, $currlevel, $prevlevel);        $currlevel--;                     }       }    if ($currlevel == $prevlevel) echo " </li>  </ul> ";    }     ?>    <?php   if(mysql_num_rows($result)!=0)   {  ?>  <?php   createtree($arraycategories, 0); ?>  <?php  }  ?>  </div>

i think solution here: https://github.com/etrepat/baum

this automatically work for.