Getting query result back as array

Question

I am having the following query:

            SELECT *
            FROM instruments
            LEFT join financials on instruments.id=financials.instruments_id
            WHERE financials.id IN
            ( SELECT MAX(financials.id)
            FROM financials
            GROUP BY financials.instruments_id )
            ORDER BY instruments.id ASC

Below is my eloquent translation:

$overviewArray = DB::table('instruments')
    ->leftJoin('financials', 'instruments.id', '=', 'financials.instruments_id')
    ->whereIn('financials.id', DB::raw('SELECT MAX(financials.id)
    FROM financials
    GROUP BY financials.instruments_id )
    ORDER BY instruments.id ASC'))->toArray();

I would like to get the result as array back so i used toArray() :

However, I am getting the following error:

In Builder.php line 2461:

  Call to undefined method Illuminate\Database\Query\Builder::toArray()

Any suggestions why this is the case?

I appreciate your replies!

UPDATE:

After adding ->get() to the end of my query, I get the following error:

In Grammar.php line 135:

  Type error: Argument 1 passed to Illuminate\Database\Grammar::parameterize() must be of the type array, object given, called
  in C:\Users\admin\Desktop\Coding Projects\demo\vendor\laravel\framework\src\Illuminate\Database\Query\Gramm
  ars\Grammar.php on line 250

Answer 1

您需要将get()添加到查询中才能执行它：

DB::table('instruments')->(....)->get()->toArray();

Answer 2

After getting query builder result,

$result = DB::table('instruments as i')
    ->leftJoin('financials as f', 'i.id', '=', 'f.instruments_id')
    ->whereIn('f.id', DB::raw('SELECT MAX(f.id) FROM financials as fs GROUP BY fs.instruments_id'))
    ->orderBy('i.id')
    ->get();

Either use, (array) $result

$overviewArray = (array) $result;

Or json_decode(json_encode(...)) to convert in array

$overviewArray = json_decode(json_encode($result), true);

Answer 3

toArray() shows exception when no record found based on the query(Single record). For this just handle exception before using toArray()

Example:

$data = DB::table('instruments')->(....)->first();
if($data!=null){
 $arrayData = $data->toArray();
}