Why this collection is returning this error

Othmane Bouhenna :

can someone please show where is the error ?

$material = DB::table('material_user')->where('material_user.id', $id)
                     ->leftjoin('users', 'users.id','=','material_user.user_id')
                     ->leftjoin('materials', 'materials.id','=','material_user.material_id')
                     ->select('users.first_name','users.last_name','users.sexe','materials.serial','materials.name','material_user.created_at')
                     ->get();
dd($material->first_name); 

Exception Property [first_name] does not exist on this collection instance.

Sehdev :

get() returns a collection. So you have to iterate over the collection to get the first_name for e.g

foreach ($material as $object)
    echo $object->first_name;
endforeach

Or you can get the single record using below & can access first_name directly

$object =  $material->first();
echo $object->first_name