Model/Config/Source/Carts/Interval.php
public function toOptionArray()
    {
        $result = $row = [];
        $i = 0;
        foreach ($this->times as $one) {
            if ($i == 0) {
                $row = [
                    'value' => $one,
                    'label' => $one . __(' Hour'),
                ];
            } else {
                $row = [
                    'value' => $one,
                    'label' => $one . __(' Hours'),
                ];
            }
            $result[] = $row;
            ++$i;
        }

        return $result;
    }
public function toOptionArray()
    {
        $result = $row = [];
        $i = 0;
        foreach ($this->times as $one) {
            if ($i == 0) {
                $row = [
                    'value' => $one,
                    'label' => $one . __(' Hour'),
                ];
            } else {
                $row = [
                    'value' => $one,
                    'label' => $one . __(' Hours'),
                ];
            }
            $result[] = $row;
            ++$i;
        }

        return $result;
    }
public function toOptionArray ( ) { $ result = $ row = [ ] ; $ i = 0 ; foreach ( $ this -> times as $ one ) { if ( $ i == 0 ) { $ row = [ 'value' => $ one , 'label' => $ one . __ ( ' Hour' ) , ] ; } else { $ row = [ 'value' => $ one , 'label' => $ one . __ ( ' Hours' ) , ] ; } $ result [ ] = $ row ; ++ $ i ; } return $ result ; }
Send to campain options hours.

@return array
Send to campain options hours .