Laravel and nested foreach of database query error - php

Question

I am building a menu on laravel.
In blade layout i have:
#foreach ($menu1 as $menu1)
{{$menu1->nome}}
<div class="panel-group" id="accordion">
<div class="panel panel-default">
<div class="panel-heading">
<h4 class="panel-title">
<a data-toggle="collapse" data-parent="#accordion" href="#collapseOne">
<span class="glyphicon glyphicon-chevron-down"></span>
</a>
</h4>
</div>
<div id="collapseOne" class="panel-collapse collapse in">
<div class="panel-body">
<ul class="list-unstyled">
#foreach ($menu2 as $menu2)
<li> {{$menu2->nome}} </li>
#endforeach
</ul>
</div>
</div>
</div>
#endforeach
in my controller i pass 2 query.
public function menu($lingua)
{
return View::make('index', ['menu1'=>DB::table('cat_nome')->join('lingua', 'cat_nome.id_lingua', '=', 'lingua.id') ->where('lingua.lingua','=',$lingua)->get(array('cat_nome.nome')),
'menu2' => DB::table('campo_nome')->join('lingua', 'campo_nome.id_lingua', '=', 'lingua.id') ->where('lingua.lingua','=',$lingua)->get(array('campo_nome.nome'))]
);
}
I tried to UNnest the foreach and everything works fine. When i try to nest the foreach i get
Trying to get property of non-object

Answer 1

#foreach ($menu2 as $menu2)
That line is most likely the culprit. You cannot use the same variable name twice in a foreach loop like that and expect good results. The second one is supposed to be what each entry in $menu2 will be scoped to during each iteration of the loop.
See the foreach documentation
Try changing the loop to look more like this:
#foreach ($menu2 as $innerMenu)
<li> {{$innerMenu->nome}} </li>
#endforeach
I would suggest doing the same thing for your outer menu as well.