function us_validate_number in Phone Number 6

Same name and namespace in other branches

1. 7 includes/phone.us.inc \us_validate_number()

Verifies that $number is a valid ten-digit North American phone number.

Parameters

$number: Digits only value.

$ext: Digits only value.

$error: The error message to shown to user. Available parameters to use in the error message are

• "%countrycode": the alpha-2 CC
• "%phone_input": the original number input by user (could be invalid)
• "%max_length": allowed maximum length of the phone number

Return value

boolean TRUE if it is a valid phone number for that country, FALSE otherwise.

2 calls to us_validate_number()

ca_validate_number in includes/phone.ca.inc

Verifies that $number is a valid ten-digit North American phone number.

USPhoneNumberTest::testPhoneNumber in tests/phone.us.test

File

includes/phone.us.inc, line 24

CCK Field for North American phone numbers.

Code

function us_validate_number($number, $ext = '', &$error) {

  // Don't need to check for extension because it has been checked by generic validation as all digits, unless has special format/requirements
  // We don't want to worry about separators
  $number = cck_phone_clean_number($number);

  // define regular expression
  $regex = '/^
    ([1]*)        # an optional 1
    [2-9][0-8]\\d  # area code (Allowed range of [2-9] for the first digit, [0-8] for the second, and [0-9] for the third digit)
    [2-9]\\d{2}    # 3-digit prefix (cannot start with 0 or 1)
    \\d{4}         # 4-digit line number
    $/x';
  $result = preg_match($regex, $number, $matches);
  if ($result && $matches[1] == '') {
    return TRUE;
  }
  elseif ($result && $matches[1] == '1') {

    // t() is no needed
    $error = 'Please enter a 10 digit North American phone number like "999 999 9999", without the country code "1" or "+1"';
    return FALSE;
  }
  else {

    // t() is no needed
    $error = '"%phone_input" is not a valid North American phone number, it should be a 10 digit number like "999 999 9999"';
    return FALSE;
  }
}