public function siblings()
    {
        if ($p = $this->parent) {
            return $p->children->filter(function ($item) {
                return $item->id !== $this->id;
            });
        }

        return null;
    }
public function siblings()
    {
        if ($p = $this->parent) {
            return $p->children->filter(function ($item) {
                return $item->id !== $this->id;
            });
        }

        return null;
    }
public function siblings ( ) { if ( $ p = $ this -> parent ) { return $ p -> children -> filter ( function ( $ item ) { return $ item -> id !== $ this -> id ; } ) ; } return null ; }
Get page siblings

@return mixed null|\Illuminate\Database\Eloquent\Collection
Get page siblings