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Re: Phone number formatting

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El 24/11/2011 8:39, Sandman escribió/wrote:
>   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

It's an interesting problem. I've came up with this proof of concept:

function format_phone_number($number){
	$formats = array(
		5 => "### ##",
		6 => "## ## ##",
		7 => "### ## ##"
	);

	$len = strlen($number);

	if( isset($formats[$len]) ){
		$format = strtr($formats[$len], array('#' => '%s'));
		$digits = str_split($number);
		return vsprintf($format, $digits);
	}else{
		return $number;
	}
}

Basically, it converts your expression into a printf-compatible format.

Of course, it'd be easier to use such expression from the beginning:

function format_phone_number($number){
	$formats = array(
		5 => "%s%s%s %s%s",
		6 => "%s%s %s%s %s%s",
		7 => "%s%s%s %s%s %s%s"
	);

	$len = strlen($number);

	if( isset($formats[$len]) ){
		$digits = str_split($number);
		return vsprintf($formats[$len], $digits);
	}else{
		return $number;
	}
}

You could replace %s with %d if you validate that $number is an integer.


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Phone number formatting Sandman <mr@sandman.net> - 2011-11-24 08:39 +0100
  Re: Phone number formatting Jonathan Stein <jstein@image.dk> - 2011-11-24 09:55 +0100
    Re: Phone number formatting Sandman <mr@sandman.net> - 2011-11-24 13:27 +0100
      Re: Phone number formatting Jonathan Stein <jstein@image.dk> - 2011-11-24 17:45 +0100
  Re: Phone number formatting "Álvaro G. Vicario" <alvaro.NOSPAMTHANX@demogracia.com.invalid> - 2011-11-24 10:43 +0100
    Re: Phone number formatting Sandman <mr@sandman.net> - 2011-11-24 14:22 +0100
  Re: Phone number formatting Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-24 15:17 +0000
    Re: Phone number formatting Sandman <mr@sandman.net> - 2011-11-25 09:09 +0100
  Re: Phone number formatting Denis McMahon <denismfmcmahon@gmail.com> - 2011-11-26 19:39 +0000
    Re: Phone number formatting Sandman <mr@sandman.net> - 2011-11-28 08:39 +0100

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