Laravel 查询时无数据

当 $address 不能存在时，则过滤数据会出现问题 address 字段为空的数据记录不返回

 

$guests = Guest::where('address','like','%'.$address.'%')

->where(function($query) use ($browser){

if (isset($browser)) {

$query->where('browser', 'like', '%'.$browser.'%');

}

})

->where(function($query) use ($referrer){

if (isset($referrer)) {

$query->where('referrer','like','%'.$referrer.'%');

}

})

->orderBy('created_at', 'desc')

->paginate($perPage = $pageSize, $columns = ['*'], $pageName = '', $page = $current);