关于Laravel的多表查询方法

之前写了一个遇到了多表查询的问题，现在就来写一下：

$data = DB::table('stu_searches')         //将两张表拼接起来
			->join('stu_msgs', function($join)
			{
			    $join->on('stu_searches.stu_id', '=', 'stu_msgs.stu_id');
			})->select('stu_searches.id', 'stu_searches.stu_id','stu_searches.username','stu_searches.stu_name',
			'stu_searches.stu_sign','stu_searches.stu_sex','stu_searches.stu_age','stu_searches.stu_num',
			'stu_searches.stu_addr','stu_searches.stu_course','stu_searches.stu_grade','stu_searches.stu_intro',
			'stu_searches.stu_pic','stu_searches.stu_collect','stu_searches.stu_bcost','stu_searches.stu_lcost',
			'stu_searches.free_time','stu_searches.volTime','stu_searches.kind',
			'stu_searches.created_at','stu_msgs.num','stu_msgs.stu_star','stu_msgs.real_sign')
				->skip($pageSize*($pageIndex))   //$pageIndex是页码  即一次会跳过几个数据
				->limit($pageSize)                 //$pageSize限制一次获取的数据条数
				->orderBy('stu_searches.id', 'desc')
				->get();

**其中要注意下需要挑选自己想要的数据，否则获取了两张表的字段，且同名字段会出现覆盖混乱