move to xm format

// attempt to find the extension
$phone_ext_parts = explode('x', $_value);
if (isset($phone_ext_parts[1])) {
	$phone_ext = preg_replace("/\D/", "", $phone_ext_parts[1]);
	$phone_part_1 = preg_replace("/\D/", "-", $phone_ext_parts[0]);
} else {
	$phone_ext = '';
	$phone_part_1 = preg_replace("/\D/", "-", $_value);
}

// replace all the duplicate dashes with a single and remove any trailing dashes
$phone_part_1 = trim(str_replace('--', '-', $phone_part_1), '-');
$phone_parts = explode('-', $phone_part_1);
$phone_part_count = count($phone_parts);

// we only have 345-3234
if ($phone_part_count == 2) {
	$data[$row_num][$field] = '--' . $phone_part_1 . '-' . $phone_ext;
// we have 323-434-5456
} else if ($phone_part_count == 3) {
	$data[$row_num][$field] = '-' . $phone_part_1 . '-' . $phone_ext;
// we have 1-455-545-6567
} else if ($phone_part_count == 4) {
	$data[$row_num][$field] = $phone_part_1 . '-' . $phone_ext;
// we have 1-432-434-5455-455
} else if ($phone_part_count == 5) {
	$data[$row_num][$field] = $phone_part_1; // already has the extension in it
} else {
	$errors[$row_num][] = 'The phone number in ' . $column_names[$field] . ' can\'t be broken into the different parts. The value is: "' . $value . '".';
}