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Re: Phone number formatting [message #176123 is a reply to message #176110]

Thu, 24 November 2011 15:17

Denis McMahon
Messages: 634
Registered: September 2010

Karma:

Senior Member

On Thu, 24 Nov 2011 08:39:17 +0100, Sandman wrote:

> So, I have a list of phone numbers in various formats I.e. the users
> have written them in different styles, with and without dashes, spaces
> and so on.
>
> Now I want to format them. I have a text file with all the area codes
> for Sweden, so I remove any non-digit character from the phone number
> and then I parse out the area code. I am now left with the phone number.
> An example:
>
> In-data: 0703051947
> Parse out area code: 070
> Phone number: 3051947
>
> Now, I have an array with formattings, that looks like this:
>
> $formats = array("### ##", "## ## ##", "### ## ##");
>
> The phone number above is never more than 7 digits long (as far as I
> know) in Sweden, so these formats should suffice. Let me explain, in the
> array, we have formats for 5, 6 and 7 digit phone numbers, set up in a
> specific way. So this phone number in my example above is 7 digits, so
> it should be formatted as such:
>
> 305 19 47
>
> With me so far? What I don't know is exactly how to do it. This is my
> code thus far:
>
> $number = "3051947";
> foreach ($formats as $f){
> $chars = strlen(preg_replace("/[^#]/", "", $f));
> }

Not sure why you want to use preg_replace for this

switch(strlen($number)) {
case 5: $chars = substr($number,0,3) . " " . substr($number,3,2); break;
case 6: $chars = substr($number,0,2) . " " . substr($number,2,2) . " " .
substr($number,4,2); break;
case 7: $chars = substr($number,0,3) . " " . substr($number,3,2) . " " .
substr($number,5,2); break;
default: // handle any unexpected number lengths
}

Some code purists say that you should use multiple if / if else / else
instead of switch, make your own mind up.

$digits = strlen($number);
if ($digits == 5) {
$chars = substr($number,0,3) . " " . substr($number,3,2);
}
else if ($digits == 6) {
$chars = substr($number,0,2) . " " . substr($number,2,2) . " " . substr
($number,4,2);}
else if ($digits == 7) {
$chars = substr($number,0,3) . " " . substr($number,3,2) . " " . substr
($number,5,2);
}
else {
// handle any unexpected number lengths
}

Rgds

Denis McMahon

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[Message index]

		Phone number formatting By: Sandman on Thu, 24 November 2011 07:39
		Re: Phone number formatting By: Jonathan Stein on Thu, 24 November 2011 08:55
		Re: Phone number formatting By: Sandman on Thu, 24 November 2011 12:27
		Re: Phone number formatting By: Jonathan Stein on Thu, 24 November 2011 16:45
		Re: Phone number formatting By: alvaro.NOSPAMTHANX on Thu, 24 November 2011 09:43
		Re: Phone number formatting By: Sandman on Thu, 24 November 2011 13:22
		Re: Phone number formatting By: Denis McMahon on Thu, 24 November 2011 15:17
		Re: Phone number formatting By: Sandman on Fri, 25 November 2011 08:09
		Re: Phone number formatting By: Denis McMahon on Sat, 26 November 2011 19:39
		Re: Phone number formatting By: Sandman on Mon, 28 November 2011 07:39

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