Formatting Phone Numbers in PHP

Question

I am working on an SMS app and need to be able to convert the sender\'s phone number from +11234567890 to 123-456-7890 so it can be compared to re

Answer 1

Check Phone number

$phone = '+385 99 1234 1234'

$str = preg_match('/^\+?\d{1,3}[\s-]?\d{1,3}[\s-]?\d{1,4}[\s-]?\d{1,4}$/', $phone);

if($str){
return true;
}else{
return false;
}

Answer 2

Assuming that your phone numbers always have this exact format, you can use this snippet:

$from = "+11234567890";
$to = sprintf("%s-%s-%s",
              substr($from, 2, 3),
              substr($from, 5, 3),
              substr($from, 8));

Answer 3

Try something like:

preg_replace('/\d{3}/', '$0-', str_replace('.', null, trim($number)), 2);

this would take a $number of 8881112222 and convert to 888-111-2222. Hope this helps.

Answer 4

This is a US phone formatter that works on more versions of numbers than any of the current answers.

$numbers = explode("\n", '(111) 222-3333
((111) 222-3333
1112223333
111 222-3333
111-222-3333
(111)2223333
+11234567890
    1-8002353551
    123-456-7890   -Hello!
+1 - 1234567890 
');


foreach($numbers as $number)
{
    print preg_replace('~.*(\d{3})[^\d]{0,7}(\d{3})[^\d]{0,7}(\d{4}).*~', '($1) $2-$3', $number). "\n";
}

And here is a breakdown of the regex:

Cell: +1 999-(555 0001)

.*          zero or more of anything "Cell: +1 "
(\d{3})     three digits "999"
[^\d]{0,7}  zero or up to 7 of something not a digit "-("
(\d{3})     three digits "555"
[^\d]{0,7}  zero or up to 7 of something not a digit " "
(\d{4})     four digits "0001"
.*          zero or more of anything ")"

Updated: March 11, 2015 to use {0,7} instead of {,7}

Answer 5

Here’s my take:

$phone='+11234567890';
$parts=sscanf($phone,'%2c%3c%3c%4c');
print "$parts[1]-$parts[2]-$parts[3]";

//  123-456-7890

The sscanf function takes as a second parameter a format string telling it how to interpret the characters from the first string. In this case, it means 2 characters (%2c), 3 characters, 3 characters, 4 characters.

Normally the sscanf function would also include variables to capture the extracted data. If not, the data is return in an array which I have called $parts.

The print statement outputs the interpolated string. $part[0] is ignored.

I have used a similar function to format Australian phone numbers.

Note that from the perspective of storing the phone number:

• phone numbers are strings
• stored data should not include formatting, such as spaces or hyphens

Answer 6

I know the OP is requesting a 123-456-7890 format, but, based on John Dul's answer, I modified it to return the phone number in parentheses format, e.g. (123) 456-7890. This one only handles 7 and 10 digit numbers.

function format_phone_string( $raw_number ) {

    // remove everything but numbers
    $raw_number = preg_replace( '/\D/', '', $raw_number );

    // split each number into an array
    $arr_number = str_split($raw_number);

    // add a dummy value to the beginning of the array
    array_unshift( $arr_number, 'dummy' );

    // remove the dummy value so now the array keys start at 1
    unset($arr_number[0]);

    // get the number of numbers in the number
    $num_number = count($arr_number);

    // loop through each number backward starting at the end
    for ( $x = $num_number; $x >= 0; $x-- ) {

        if ( $x === $num_number - 4 ) {
            // before the fourth to last number

            $phone_number = "-" . $phone_number;
        }
        else if ( $x === $num_number - 7 && $num_number > 7 ) {
            // before the seventh to last number
            // and only if the number is more than 7 digits

            $phone_number = ") " . $phone_number;
        }
        else if ( $x === $num_number - 10 ) {
            // before the tenth to last number

            $phone_number = "(" . $phone_number;
        }

        // concatenate each number (possibly with modifications) back on
        $phone_number = $arr_number[$x] . $phone_number;
    }

    return $phone_number;
}