convert_cyr_string

chr

[edit] Last updated: Fri, 25 May 2012

chunk_split

(PHP 4, PHP 5)

chunk_split — Divide una cadena en trozos más pequeños

Descripción

string chunk_split ( string $body [, int $chunklen = 76 [, string $end = "\r\n" ]] )

Puede ser utilizado para dividir una cadena en trozos más pequeños lo que es útil, por ejemplo para convertir la salida de la función base64_encode() a la salida semántica del RFC 2045. Inserta la cadena end a cada caracter chunklen.

Parámetros

body: La cadena que será fragmentada.
chunklen: La longitud del trozo.
end: La secuencia de final de línea.

Valores devueltos

Devuelve la cadena fragmentada.

Ejemplos

Ejemplo #1 chunk_split() ejemplo


<?php
// format $data usando RFC 2045 semantics
$new_string = chunk_split(base64_encode($data));
?>

Ver también

str_split() - Convierte un string en un array
explode() - Divide una cadena en varias cadenas
split() - Divide una cadena en una matriz mediante una expresión regular
wordwrap() - Ajusta un string hasta un número dado de caracteres
» RFC 2045

convert_cyr_string

chr

[edit] Last updated: Fri, 25 May 2012

add a note User Contributed Notes chunk_split

qeremy [atta] gmail [dotta] com 28-Feb-2012 03:35


An alternative for unicode strings;



<?php

function chunk_split_unicode($str, $l = 76, $e = "\r\n") {

    $tmp = array_chunk(

        preg_split("//u", $str, -1, PREG_SPLIT_NO_EMPTY), $l);

    $str = "";

    foreach ($tmp as $t) {

        $str .= join("", $t) . $e;

    }

    return $str;

}



$str = "Yarım kilo çay, yarım kilo şeker";

echo chunk_split($str, 4) ."\n";

echo chunk_split_unicode($str, 4);

?>



Yar�

�m k

ilo 

çay

, ya

rım

 kil

o ş

eker



Yarı

m ki

lo ç

ay, 

yarı

m ki

lo ş

eker

belal dot nabeh at gmail dot com 10-Aug-2010 08:02


If you are using UTF-8 charset you will face a problem with Arabic language


to solve this problem i used this function





<?php


function chunk_split_($text,$length,$string_end)


{


    $text = iconv("UTF-8","windows-1256",$text);


    $text = str_split($text);


    foreach($text as $val)


    {


        if($a !== $val)


        {


            $a = $val;


            $x = 0;


        }else{


            $a = $val;


            $x++;


        }


        if($x > $length)


        {


            $new_text .= $val.$string_end;


            $x = 0;


        }else


        {


             $new_text .= $val;


        }


        


    }


    $new_text = iconv("windows-1256","UTF-8",$new_text);


    return $new_text;


}


?>

Peter from dezzignz.com 05-Apr-2010 06:07


Oops. Here is a correction for the post below.



<?php



function mbStringToArray ($str) {

    if (empty($str)) return false;

    $len = mb_strlen($str);

    $array = array();

    for ($i = 0; $i < $len; $i++) {

        $array[] = mb_substr($str, $i, 1);

    }

    return $array;

}



function mb_chunk_split($str, $len, $glue) {

    if (empty($str)) return false;

    $array = mbStringToArray ($str);

    $n = -1;

    $new = '';

    foreach ($array as $char) {

        $n++;

        if ($n < $len) $new .= $char;

        elseif ($n == $len) {

            $new .= $glue . $char;

            $n = 0;

        }

    }

    return $new;

}



// DEMO:

$str = '一二一二一二一二一二';

echo mb_chunk_split($str, 2, '*<br />');



// produces this output:

一二*

一二*

一二*

一二*

一二



?>

Peter from dezzignz.com 05-Apr-2010 04:30


chunk_split() is not multibyte safe. If you ever run into needing the function that is multibyte safe, here you go:



<?php



function mbStringToArray ($str) {

    if (empty($str)) return false;

    $len = mb_strlen($str);

    $array = array();

    for ($i = 0; $i < $len; $i++) {

        $array[] = mb_substr($str, $i, 1);

    }

    return $array;

}



function mb_chunk_split($str, $len, $glue) {

    if (empty($str)) return false;

    $array = mbStringToArray ($str);

    $n = 0;

    $new = '';

    foreach ($array as $char) {

        if ($n < $len) $new .= $char;

        elseif ($n == $len) {

            $new .= $glue . $char;

            $n = 0;

        }

        $n++;

    }

    return $new;

}



?>

dampee at earthlink dot net 20-Nov-2009 09:10


I've found this quite useful for simulating various kinds of shuffles with cards.  It is humorous but can imitate multiple deck cuts and other (imperfectly) random events.





<?php


function truffle_shuffle($body, $chunklen = 76, $end = "\r\n")


{


     $chunk = chunk_split($body, $chunklen, "-=blender=-");


     $truffle = explode("-=blender=-",$chunk);


     $shuffle = shuffle($truffle);


     $huknc = implode($end,$shuffle);


     return $huknc;


}


?>

tim at weird spots in my crotch dot com 08-May-2008 02:29


@Royce



I think this is better, since you can still use the ampersand in your text:



<?php

function HtmlEntitySafeSplit($html,$size,$delim)

{

  $pos=0;

  for($i=0;$i<strlen($html);$i++)

  {

    if($pos >= $size && !$unsafe)

    {

      $out.=$delim;

      $unsafe=0;

      $pos=0;

    }

    $c=substr($html,$i,1);

    if($c == "&")

      $unsafe=1;

    elseif($c == ";")

      $unsafe=0;

    elseif($c == " ")

      $unsafe=0;

    $out.=$c;

    $pos++;

  }

  return $out;

}

?>

neos at blizzz dot ru 03-May-2008 11:38


"version" of chunk_split for cyrillic characters in UTF-8



public function UTFChunk($Text,$Len = 10,$End = "\r\n")

{

    if(mb_detect_encoding($Text) == "UTF-8")

    {

        return mb_convert_encoding(

                chunk_split(

                    mb_convert_encoding($Text, "KOI8-R","UTF-8"), $Len,$End

                ),

                "UTF-8", "KOI8-R"

            );

    } else

    {

        return chunk_split($Text,$Len,$End);

    }

}



this is example for russian language

Royce 16-Apr-2008 12:31


Here's a version of Chunk Split I wrote that will not split html entities. Useful if you need to inject something in html (in my case, <wbr/> tags to allow for long text wrapping).



<?php

function HtmlEntitySafeSplit($html,$size,$delim)

{

  $pos=0;

  for($i=0;$i<strlen($html);$i++)

  {

    if($pos >= $size && !$unsafe)

    {

      $out.=$delim;

      $unsafe=0;

      $pos=0;

    }

    $c=substr($html,$i,1);

    if($c == "&")

      $unsafe=1;

    elseif($c == ";")

      $unsafe=0;

    $out.=$c;

    $pos++;

  }

  return $out;

}

?>

lehongviet at gmail dot com 29-Jun-2007 03:23


This function works well to cut long para for preview without cutting word. Good for Unicode such as &#7789;



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

{

    $xlenint = strpos($xstr," ",$xlenint);

   return substr($xstr,0,$xlenint).$xlaststr;

}

mark [at] d0gz [dot] net 10-Apr-2007 10:12


When using ssmtp for simple command line mailing:



$mail_to = "destination@emailbox.com";

$msg = "this would be an actual base64_encoded gzip msg";

$date = date(r);

$mail  = "X-FROM: root@sender.org \n";

$mail .= "X-TO: ".$mail_to. " \n";

$mail .= "To: ".$mail_to. " \n";

$mail .= "Date: $date \n";

$mail .= "From: root@sender.org \n";

$mail .= "Subject: lifecheck \n";

$mail .= $msg." \n";

exec("echo '$mail' | /usr/sbin/ssmtp ".$mail_to);



be sure to invoke chunk_split() on your message body - ssmtp becomes unhappy with long lines and will subsequently trash  your message.

06-Mar-2007 02:45


in response to "hansvane at yahoo dot com dot ar"



you can do that ALOT easier:



<?php

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

{

   return substr($xstr,0,$xlenint).$xlaststr;

}

?>

hansvane at yahoo dot com dot ar 21-Jan-2007 10:06


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 12:32


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 11:06


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 03-Oct-2005 07:08


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 05:45


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 02:28


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 25-Jun-2005 04:10


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 02:18


@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 10:47


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 07:39


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 02:51


>> 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 20-Apr-2001 07:46


[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:

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