how split number 3 parts

[Jason7899]

hi,
i have a number with 9 digits lenght
and i want split this number: 922888222
into this: 922 888 222
how can i do that?
thanks a lot for your help :)

[Dormilich]

you can use a RegEx (preg_replace()).

[Markus]

@Dormilich
preg_split() would be better ;)

And str_split() better still - pay attention to the optional 'length' parameter.

[Dormilich]

@Markus
that depends on the desired output.

[Markus]

@Dormilich
I don't think the output is in question - the OP asked for his string to be split.

[Dormilich]

the OP didn’t mention to split it into an array. you know how loose the meaning of a word can be in this forum.

[TheServant]

I am presuming that it is a phone number or the like that the OP wants formatted. How I would do it, not saying Dorms way won't work or be better, but str_split() and then a simple echo with spaces. It can be done in a loop if the length of the original number is variable, but I think this will do:

$number = "922888222";
$array = str_split($number,3); // Splits the number into a new element every 3 characters
echo( $array[0],' ', $array[1],' ', $array[2] ); // Ouputs each element with a space in between

[zorgi]

I would probably do it like this

number_format(922888222, 0, " ", " ");
 

http://hr.php.net/number_format

[TheServant]

@zorgi
Great idea! Looks like it would work.

[eladkarako]

/**
 * @param float $size                - the memory size to format
 * @param bool  $is_add_commas       (optional) - saperete every 3 digits from the end so 56789 will be "56,789".
 * @param bool  $is_full_description (optional) - use *Bytes instead of *b (GigaBytes instead of gb, etc...).
 * @param int   $digits              (optional) - number of digits decimal point, to limit.
 * @return string
 * @author http://icompile.eladkarako.com
 */
function human_readable_memory_sizes($size, $is_add_commas = false, $is_full_description = false, $digits = 20) {
  $unit = array('b', 'kb', 'mb', 'gb', 'tb', 'pb');
  $unit_full = array('Bytes', 'KiloByte', 'MegaBytes', 'GigaBytes', 'TeraBytes', 'PetaBytes');
 
  $out = $size / pow(1024, ($i = floor(log($size, 1024))));
 
  $out = sprintf("%." . $digits . "f", $out);
 
  $out = !$is_add_commas ? $out : preg_replace_callback('/(\d)(?=(\d{3})+$)/', function ($arr) {
    return isset($arr[0]) ? "$arr[0]," : "";
  }, $out);
 
  $out .= ' ' . (!$is_full_description ? $unit[ $i ] : $unit_full[ $i ]);
 
  return $out;
}
 

the preg_replace_callback is what you want (in PHP),
for JavaScript your can use:

function addCommas(t) {
  return String(t).replace(/(\d)(?=(\d{3})+$)/g, "$1,")
}

taken from:
first one:
http://icompile.eladkarako.com/php-s...ar-expression/

second one:
http://icompile.eladkarako.com/javas...ar-expression/

Elad.