Laravel: unable to build multiple orWhere query with laravel query builder - php

Question

I am trying to make this query with laravel query builder but i did not understand how i can do this:
Query
select * from `data_table_1486794412` where (`column_2` = '2014' or `column_2` = '2015') and (`column_1` = 'GNDU')
My Code is:
$dbObj = DB::table($datatableName->dataset_table);
$dbObj->orWhere('column_2','2015');
$dbObj->orWhere('column_2','2015');
$dbObj->where(array('column_1','GNDU'));
Laravel Generating Query:
select * from `data_table_1486794412` where `column_2` = ? or `column_2` = ? and (`column_1` = ?)
My Table

Answer 1

In order to group WHERE clauses so that they're surrounded by brackets you need to pass a callback to where() call.
The following code should do the trick:
$dbObj = DB::table($datatableName->dataset_table);
$column1 = 2015;
$column2 = 2016;
$dbObj->where(function($query) use ($column1, $column2) {
$query->orWhere('column_1',$column1);
$query->orWhere('column_2',$column2);
});
$dbObj->where(array('column_1','GNDU'));

Answer 2

i think that's work
$dbObj = DB::table($datatableName->dataset_table);
$dbObj->orWhere('column_2','2015')->orWhere('column_2','2015')->where(array('column_1','GNDU'))

Answer 3

i am using orWhere in loop. can you please tell how i can use it in loop..because 2014 and 2015 are coming in form of array.
You can use whereIn rather than a loop, where you can pass in an array:
$dbObj = DB::table($datatableName->dataset_table);
$dbObj->where('column_1', 'GNDU')->whereIn('column_2', $yourArray)->get();