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<?php/**
 * Example: sum($column = null)
 * ================================
 *
 * sum() method return summation of resulting data
 */
 
 require_once '../vendor/autoload.php';
 
 use Nahid\JsonQ\Jsonq;
 
 $q = new Jsonq('data.json');
 
 try {
 $res = $q
 ->from('products')
 ->where('cat', '=', 2)
 ->sum('price');
 
 //from plain array collection
 $res1 = $q->collect([2, 10, 1, 5, 7])
 ->sum();
 dump($res, $res1);
 } catch (\Nahid\JsonQ\Exceptions\ConditionNotAllowedException $e) {
 echo $e->getMessage();
 } catch (\Nahid\JsonQ\Exceptions\NullValueException $e) {
 echo $e->getMessage();
 }
 
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