chunk_split

(PHP 3>= 3.0.6, PHP 4 , PHP 5)

chunk_split -- Split a string into smaller chunks

Description

string chunk_split ( string body [, int chunklen [, string end]] )

Can be used to split a string into smaller chunks which is useful for e.g. converting base64_encode() output to match RFC 2045 semantics. It inserts end (defaults to "\r\n") every chunklen characters (defaults to 76). It returns the new string leaving the original string untouched.

Esimerkki 1. chunk_split() example


<?php

// format $data using RFC 2045 semantics

$new_string = chunk_split(base64_encode($data));

?>

add a note User Contributed Notes
chunk_split

hansvane at yahoo dot com dot ar
22-Jan-2007 07:06


This function is very simple and many other functions make this on PHP 5 and even some ones in 4 the good think about this one is that work on php 3.0.6 and 4 



function split_hjms_chars($xstr, $xlenint, $xlaststr)

{

    $texttoshow = chunk_split($xstr,$xlenint,"\r\n"); 

    $texttoshow  = split("\r\n",$texttoshow);

    $texttoshow = $texttoshow[0].$xlaststr;

    return $texttoshow;

}



// For use 



echo split_hjms_chars("This is your text",6,"...");



// Will return



This i...



It is useful to cut long text on preview lists and if the server it's old.



Hope it helps some one. Hans Svane

chris AT w3style.co DOT uk
14-Aug-2006 09:32


I'm not sure what versions this also occurs in but the output of chunk_split() in PHP 5.0.4 does not match the output in other versions of PHP.



In all versions of PHP I have used, apart from 5.0.4 chunk_split() adds the separator (\r\n) to the end of the string.  But in PHP 5.0.4 this does not happen.  This had a fairly serious impact on a library I maintain so it may also affect others who are not aware of this.

xamine at gmail dot com
04-Jun-2006 08:06


In reply to "adrian at zhp dot inet dot pl" digit grouping function:

<?php

    $number = strrev(chunk_split (strrev($number), 3,' '));

    //If $number is '1234567', result is '1 234 567'.

?>



There is a much more simple way of doing this, by using the built-in number_format() function. 



<?php 

   $number = number_format($number,2,"."," ");



   //This will round $number to 2 decimals, use the dot (".")

   //as decimal point, and the space (" ") as thousand sepparator.



?>

kevin @t hyguard,com
04-Oct-2005 04:08


Not quite completely obvious, but... 



you can un_chunk_split() by:



$long_str = str_replace( "\r\n", "", $chunked_str );

harish at thespitbox dot net
30-Jul-2005 02:45


another way to group thousands in a number, which is much simpler, is built into PHP :)



www.php.net/number_format

adrian at zhp dot inet dot pl
08-Jul-2005 11:28


If you need to output number formated with thousand's separator, just use it:



$number = strrev(chunk_split (strrev($number), 3,' '));



If $number is '1234567', result is '1 234 567'.

Kevin
26-Jun-2005 01:10


To phpkid:



This is a much simpler solution.



<?php

function longWordWrap($string) {

    $string = str_replace("\n", "\n ", $string); // add a space after newline characters, so that 2 words only seperated by \n are not considered as 1 word

    $words = explode(" ", $string); // now split by space

    foreach ($words as $word) {

        $outstring .= chunk_split($word, 12, " ") . " ";

    }

    return $outstring;

}

?>

Chris
15-Jun-2005 11:18


@phpkid:



You can avoid such long complex code and just use some CSS stuff.



Just add style="table-layout:fixed" in your <td > tag and your problem will be solved.



ciao

phpkid
28-May-2005 07:47


Well I have been having issues with a shoutbox I am coding it would keep expanding the <TD> if there were large words in it but I fixed it with this:



function PadString($String){

    $Exploded = explode(" ", $String);

    $Max_Parts = count($Exploded);

    

    $CurArray = 0;

    $OutString = '';

    while($CurArray<=$Max_Parts)

    {

        $Peice_Size = strlen($Exploded[$CurArray]);

        if($Peice_Size>15)

        {

            $OutString .= chunk_split($Exploded[$CurArray], 12, " ");

            $CurArray++;

        } else {

            $OutString .= " ".$Exploded[$CurArray];

            $CurArray++;

        }

    }

    

    return $OutString;

}

mv@NOSPAM
24-Jan-2004 04:39


the best way to solve the problem with the last string added by chunk_split() is:





<?php


$string = '1234';


substr(chunk_split($string, 2, ':'), 0, -1);


// will return 12:34


?>

Danilo
10-Dec-2003 11:51


>> chunk_split will also add the break _after_ the last occurence.



this should be not the problem 



substr(chunk_split('FF99FF', 2, ':'),0,8);

will return FF:99:FF

sbarnum at pointsystems dot com
21-Apr-2001 04:46


[Editor's note: You can always use wordwrap('FF99FF', 2, ':', 2); to avoid this]





chunk_split will also add the break _after_ the last occurence.  So, attempting to split a color into base components,


chunk_split('FF99FF', 2, ':');


will return FF:99:FF:

add a note

convert_cyr_string

chr

Last updated: Tue, 20 Feb 2007