Jedidiah’s Blog

Using PHP, this little bit of code parses and formats numbers by putting parentheses and a hyphen into the phone number. This code handles 10 digit phone numbers and even eleven digits (with the country code).

Example: Changes this 1234567890  into this (123) 456-7890

function formatphone($phone){
if (empty($phone)) return "";

if (strlen($phone) == 7) {
    sscanf($phone, "%3s%4s", $prefix, $exchange);
} else if (strlen($phone) == 10) {
    sscanf($phone, "%3s%3s%4s", $area, $prefix, $exchange);
} else if (strlen($phone) > 10) {
    if(substr($phone,0,1)=='1') {
        sscanf($phone, "%1s%3s%3s%4s", $country, $area, $prefix, $exchange);
    } else {
        sscanf($phone, "%3s%3s%4s%s", $area, $prefix, $exchange, $extension);
    }
} else {
    return $phone;
}

$out = "";
$out .= isset($country) ? $country.' ' : '';
$out .= isset($area) ? '(' . $area . ') ' : '';
$out .= $prefix . '-' . $exchange;
$out .= isset($extension) ? ' x' . $extension : '';
return $out;
}