Here's a simple bit of PHP that correctly formats every UK phone number. It's in use on Media UK.
Add "y", and it'll format it as if it's a fax number.
Example: format_telfax2("0208-2733 272") will return 020 8273 3272 (complete with Skype-compatible link).
<?php
echo format_telfax2("02049237323");
function format_telfax2 ($number,$fax=false) {
// http://james.cridland.net/code/format_uk_phonenumbers.html
// v2: worked on by Olly Benson to make it look better and work faster!
// v2.1: removal of a bugette
// v2.2: fix Cumbria numbers: thank you Roger Miller
// Change the international number format and remove any non-number character
$number=ereg_replace( '[^0-9]+','',str_replace("+", "00", $number));
// Turn number into array based on Telephone Format
$numberArray = splitNumber($number,explode(",",getTelephoneFormat($number)));
// Add brackets around first split of numbers if number starts with 01 or 02
if (substr($number,0,2)=="01" || substr($number,0,2)=="02") $numberArray[0]="(".$numberArray[0].")";
// Convert array back into string, split by spaces
$formattedNumber = implode(" ",$numberArray);
return ($fax) ? $formattedNumber." <small><a href='mailto:remote-printer.Reception@44".str_replace(" ", "", substr($number,1)).".iddd.tpc.int'>send a fax</a></small>" : "<a href='callto:+44".str_replace(" ", "", substr($number,1))."' title='Call with Skype'>".$formattedNumber."</a>";
}
function getTelephoneFormat($number) {
// This uses full codes from http://www.area-codes.org.uk/formatting.shtml
$telephoneFormat = array (
'02' => "3,4,4",
'03' => "4,3,4",
'05' => "3,4,4",
'0500' => "4,6",
'07' => "5,6",
'070' => "3,4,4",
'076' => "3,4,4",
'07624' => "5,6",
'08' => "4,3,4", // some 0800 numbers are 4,6
'09' => "4,3,4",
'01' => "5,6", // some 01 numbers are 5,5
'011' => "4,3,4",
'0121' => "4,3,4",
'0131' => "4,3,4",
'0141' => "4,3,4",
'0151' => "4,3,4",
'0161' => "4,3,4",
'0191' => "4,3,4",
'013873' => "6,5",
'015242' => "6,5",
'015394' => "6,5",
'015395' => "6,5",
'015396' => "6,5",
'016973' => "6,5",
'016974' => "6,5",
'016977' => "6,5",
'0169772' => "6,4",
'0169773' => "6,4",
'017683' => "6,5",
'017684' => "6,5",
'017687' => "6,5",
'019467' => "6,5");
// Sorts into longest key first
uksort($telephoneFormat, "sortStrLen");
foreach ($telephoneFormat AS $key=>$value) {
if (substr($number,0,strlen($key)) == $key) break;
};
return $value;
}
function splitNumber($number,$split) {
$start=0;
$array = array();
foreach($split AS $value) {
$array[] = substr($number,$start,$value);
$start = $start+$value;
}
return $array;
}
function sortStrLen($a, $b) {return strlen($b)-strlen($a);}
?>
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