Formatting String in PHP - php

Question

I am trying to display numbers retrieved from the database, in a specific format in a text box.
There are two ways in which the numbers can be displayed.
When the total numbers are 10
in database (4608061019) Expected output 46-0806-1019
When the total numbers are 13
in database (4608061019100) Expected output 46-0806-1019-100
My progress so far:
While saving the value into the database I am using
preg_replace("/[^0-9]/","",$string); // to make sure all hardcoded "-" are removed while storing.

Answer 1

One possible (regex-using) approach:
$str = '4608061019';
$formatted = preg_replace(
'/(^\d{2}|\d{4})(?!$)/', '$1-', $str);
// 46-0806-1019
Demo. This function doesn't check the string's length - it just adds a hyphen after each relevant sequence of symbols (2 right after the beginning, 4 afterwards).

Answer 2

Easy! If you are sure that there are only these two options, then you can do this way:
Convert the number to an array of numbers:
$number = str_split($number);
Check the length:
if (count($number) == 10)
$number = $number[0] . $number[1] . "-" . $number[2] . $number[3] . $number[4] . $number[5] . "-" . $number[6] . $number[7] . $number[8] . $number[9];
else if (count($number) == 13)
$number = $number[0] . $number[1] . "-" . $number[2] . $number[3] . $number[4] . $number[5] . "-" . $number[6] . $number[7] . $number[8] . $number[9] . "-" . $number[10] . $number[11] . $number[12];
Return the number:
return $number;
The full function here:
function tokenize($number)
{
$number = str_split($number);
if (count($number) == 10)
$number = $number[0] . $number[1] . "-" . $number[2] . $number[3] . $number[4] . $number[5] . "-" . $number[6] . $number[7] . $number[8] . $number[9];
else if (count($number) == 13)
$number = $number[0] . $number[1] . "-" . $number[2] . $number[3] . $number[4] . $number[5] . "-" . $number[6] . $number[7] . $number[8] . $number[9] . "-" . $number[10] . $number[11] . $number[12];
return $number;
}
Output
echo tokenize(4608061019);
echo tokenize(4608061019100);
Output
46-0806-1019
46-0806-1019-100
Fiddle: http://codepad.viper-7.com/EVWeFR

Answer 3

Another alternative solution:
$parts = array(2,4,4,3);
$string = "4608061019100";
$i = 0;
$newString = '';
foreach ($parts as $part) {
$newString.=substr($string, $i, $part) ."-";
$i = $i+$part;
}
$newString = rtrim($newString, "-");
Output is:
string '46-0806-1019-100' (length=16)
Works for 46-0806-1019 too.

Answer 4

try it:
//$number = '4608061019';
$number = '4608061019100';
function formatImportantNumber($theNumber){
$formatedNumber = '';
if(strlen($theNumber)==10){
//46-0806-1019
$formatedNumber = substr($theNumber, 0, 2).'-'.substr($theNumber, 2, 4).'-'.substr($theNumber, 6, 4);
}elseif(strlen($theNumber)==13){
//46-0806-1019-100
$formatedNumber = substr($theNumber, 0, 2).'-'.substr($theNumber, 2, 4).'-'.substr($theNumber, 6, 4).'-'.substr($theNumber, 10, 3);
}else{
die('Invalid number formated')
}
return $formatedNumber;
}
echo formatImportantNumber($number);