/home/dvjjulio/softtrash/app/UserCliente.php
<?php

namespace Trash;

use Illuminate\Database\Eloquent\Model;

class UserCliente extends Model
{
    //
    protected $table = "user_cliente";
    public $timestamps = false;

    public function ClienteUser($user_id,$cliente_id){
      $sql = "SELECT uc.id, uc.user_id, uc.cliente_id, c.nombre_comercial
              FROM user_cliente uc
              JOIN cliente c ON c.id = uc.cliente_id AND c.status_id = 1 AND uc.cliente_id = $cliente_id
              WHERE uc.user_id = $user_id AND uc.status_id = 1";

      $data = \DB::select( \DB::raw( $sql ) );
  		if(count($data) != null)
  			return $data;
  		return null;
    }
}