<?php
/**
* @file
* CCK Field for New Zealand phone numbers.
*/
function phone_nz_metadata() {
// These strings are translated using t() on output.
return array(
'error' => '"%value" is not a valid New Zealand phone number!<br>New Zealand phone numbers should contain only numbers, spaces, brackets and "-". They should look like 04 123 4567 or can optionally omit the leading 0 and have a prefix of "+64".',
);
}
/**
* Verification for New Zealand Phone Numbers.
* As supplied by http://www.itu.int/itudoc/itu-t/number/n/nzl/76195_ww9.doc, April 2009
*
* @param string $phonenumber
* @return boolean returns boolean FALSE if the phone number is not valid.
*/
function valid_nz_phone_number($phonenumber) {
//$phonenumber = trim($phonenumber);
// strip formatting chars
$phonenumber = preg_replace('/[\-() ]/', '', $phonenumber);
// strip optional '+64' or '0' prefixes
$phonenumber = preg_replace('/^(\+64|0)/', '', $phonenumber);
//$rules[] = array("Prefix","Minimum length","Maximum length");
// special purpose service codes and numbers
/*// Enable if required
$rules[] = array('10', 3, 3);
$rules[] = array('12', 6, 7); // NZ Direct Service
$rules[] = array('60', 4, 4); // Directory Assistance (operator only) - Maybe shouldn't be in here
$rules[] = array('83', 5, 8); // "Enhanced Voice Services"
$rules[] = array('86', 8, 8); // "Enhanced Paging Services"
$rules[] = array('87', 4, 8); // "PSTN access to data services"
*/
// Mobile
$rules[] = array('20', 9, 9); // mobile radio / Orcon mobile
$rules[] = array('22', 8, 10); // NZ Communications (actual lengths subject to change)
$rules[] = array('210', 8, 10); // Vodafone
$rules[] = array('211', 8, 9); // Vodafone
$rules[] = array('212', 8, 9); // Vodafone
$rules[] = array('213', 8, 9); // Vodafone
$rules[] = array('214', 8, 9); // Vodafone
$rules[] = array('215', 8, 9); // Vodafone
$rules[] = array('216', 8, 9); // Vodafone
$rules[] = array('217', 8, 9); // Vodafone
$rules[] = array('218', 8, 9); // Vodafone
$rules[] = array('219', 8, 9); // Vodafone
$rules[] = array('24', 8, 8); // Scott Base
//$rules[] = array('25', 8, 9); // Old Telecom 025, now unused
$rules[] = array('26', 8, 9); // Telecom Paging
$rules[] = array('27', 9, 9); // Telecom 027 mobile
$rules[] = array('29', 8, 9); // TelstraClear mobile
// South Island regional
$rules[] = array('32', 8, 8);
$rules[] = array('33', 8, 8);
$rules[] = array('34', 8, 8);
$rules[] = array('35', 8, 8);
$rules[] = array('36', 8, 8);
$rules[] = array('37', 8, 8);
$rules[] = array('39', 8, 8);
// Wellington regional
$rules[] = array('42', 8, 8);
$rules[] = array('43', 8, 8);
$rules[] = array('44', 8, 8);
$rules[] = array('45', 8, 8);
$rules[] = array('46', 8, 8);
$rules[] = array('48', 8, 8);
$rules[] = array('49', 8, 8);
// Manawatu, Taranaki, Hawkes Bay, Gisborne, Wairarapa, Otaki regional
$rules[] = array('62', 8, 8);
$rules[] = array('63', 8, 8);
$rules[] = array('67', 8, 8);
$rules[] = array('68', 8, 8);
$rules[] = array('69', 8, 8);
// Waikato, BOP, Taumarunui regional
$rules[] = array('73', 8, 8);
$rules[] = array('75', 8, 8);
$rules[] = array('62', 8, 8);
$rules[] = array('78', 8, 8);
$rules[] = array('79', 8, 8);
// Freecall
$rules[] = array('80', 8, 10);
// Pay-call
$rules[] = array('90', 8, 10);
// Auckland + Northland regional
$rules[] = array('92', 8, 8);
$rules[] = array('93', 8, 8);
$rules[] = array('94', 8, 8);
$rules[] = array('95', 8, 8);
$rules[] = array('96', 8, 8);
$rules[] = array('98', 8, 8);
$rules[] = array('99', 8, 8);
foreach ($rules as $rule) {
if (preg_match('/^'.$rule[0].'/', $phonenumber) && strlen($phonenumber) >= $rule[1] && strlen($phonenumber) <= $rule[2]) {
return true;
}
}
return false;
}
/**
* Formatting for New Zealand Phone Numbers.
*
* @param string $phonenumber
* @return string Returns a string containing the phone number with some formatting.
*/
function format_nz_phone_number($phonenumber, $field) {
$prefix = '';
$extension = '';
// strip old formatting chars
$phonenumber = preg_replace('/[\-() ]/', '', $phonenumber);
/*
* strip and save the +64 prefix if found
*/
if (preg_match('/^\+64/', $phonenumber, $match)) {
$prefix = '+64';
$phonenumber = str_replace('+64', '', $phonenumber);
}
else {
$prefix = '0';
/*
* Remove a leading 0, if present
*/
if (preg_match('/^0/', $phonenumber, $match)) {
$phonenumber = substr($phonenumber, 1);
}
}
/*
* strip and save the extension (x9999) postfix if found
*/
if (preg_match('/(x[0-9]+)$/', $phonenumber, $match)) {
$extension = ' '.$match[1];
$phonenumber = preg_replace('/x[0-9]+$/', '', $phonenumber);
}
/*
* geographic numbers
* Eg. (04) 123 4578
*/
if (preg_match('/^([34679])([0-9]{3})([0-9]{4})$/', $phonenumber, $match)) {
return _format_nz_phone_number_prefix($prefix, $match[1]) . $match[2] . ' ' . $match[3] . $extension;
}
/*
* 8 digit mobile numbers
* Eg. 021 123 123
*/
if (preg_match('/^(2[12679])([0-9]{3})([0-9]{3})$/', $phonenumber, $match)) {
return _format_nz_phone_number_prefix($prefix, $match[1]) . $match[2] . ' ' . $match[3] . $extension;
}
/*
* 9 digit mobile numbers
* Eg. 021 123 4567
*/
if (preg_match('/^(2[12679])([0-9]{3})([0-9]{4})$/', $phonenumber, $match)) {
return _format_nz_phone_number_prefix($prefix, $match[1]) . $match[2] . ' ' . $match[3] . $extension;
}
/*
* 10 digit mobile numbers
* Eg. 021 1234 1234
*/
if (preg_match('/^(2[12679])([0-9]{4})([0-9]{4})$/', $phonenumber, $match)) {
return _format_nz_phone_number_prefix($prefix, $match[1]) . $match[2] . ' ' . $match[3] . $extension;
}
/**
* 0800/0900 numbers (a bit random)
*/
if (preg_match('/^(900|800)(\d+)$/', $phonenumber, $match)) {
// How we format depends on the length
$formatted = null;
switch(strlen($match[2])) {
case 5: $formatted = preg_replace('/^(\d{2})(\d{3})$/', '$1$2', $match[2]); break;
case 6: $formatted = preg_replace('/^(\d{3})(\d{3})$/', '$1$2', $match[2]); break;
case 7: $formatted = preg_replace('/^(\d{3})(\d{4})$/', '$1 $2', $match[2]); break;
}
return _format_nz_phone_number_prefix($prefix, $match[1]).$formatted;
}
// default (probably bad)
return $prefix . $phonenumber . $extension;
}
/**
* Formats the prefix as either +64 4 or (04), depending on the original prefix context
*
* @param string $prefix either '+64' or '0'
* @param string $area_code the area code, eg. 4, 21, 27 etc
* @return string the formatted prefix
*/
function _format_nz_phone_number_prefix($prefix, $area_code) {
$area_code = intval($area_code);
if (in_array($area_code, array('800', '900'))) {
return ($prefix == '0') ? $prefix.$area_code.' ' : $prefix.' '.$area_code.' ';
}
else {
return ($prefix == '0') ? '('.$prefix.$area_code.') ' : $prefix.' '.$area_code.' ';
}
}