Get list of phone numbers

getContacts

    function getContacts($data)
    {
        $contacts = [];

        $data = str_replace(' ', '', $data);

        $strings = explode(',', $data);

        foreach ($strings as $string) {

            if (strpos($string, '-') !== false) {

                list($start, $end) = explode('-', $string);

                if (strlen($end) == 2) {

                    $end = substr($start, 0, strlen($start) - 2) . $end;

                }

                $control = 0;

                for ($number = $start; $number <= $end; $number++) {

                    array_push ($contacts, phoneNumberFormat($number));

                    $control++;

                    if ($control >= 100) {

                        break;

                    }
                }

            } else {

                array_push ($contacts, phoneNumberFormat($string));

            }
        }
        
        return implode(',', $contacts);

    }