convert_cyr_string

chr

Last updated: Sun, 25 Nov 2007

chunk_split

(PHP 4, PHP 5)

chunk_split — 将字符串分割成小块

说明

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

使用此函数将字符串分割成小块非常有用。例如将 base64_encode() 的输出转换成符合 RFC 2045 语义的字符串。它会在每 chunklen （默认为 76）个字符后边插入 end （默认为“\r\n”）。此函数会返回新的字符串，而不会修改原有字符串。

Example#1 chunk_split() 例子


<?php
// 使用 RFC 2045 语义格式化 $data
$new_string = chunk_split(base64_encode($data));
?>

参见 str_split()，explode()，split()，wordwrap() 和 » RFC 2045。

convert_cyr_string

chr

Last updated: Sun, 25 Nov 2007

add a note User Contributed Notes
chunk_split

tim at weird spots in my crotch dot com
08-May-2008 05:29


@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
04-May-2008 02:38


"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 03:31


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 06:23


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
11-Apr-2007 01:12


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 06:45


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
22-Jan-2007 02:06


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
15-Aug-2006 03:32


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
05-Jun-2006 02:06


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 10:08


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 08:45


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
09-Jul-2005 05:28


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 07:10


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
16-Jun-2005 05:18


@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
29-May-2005 01:47


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 11:39


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
11-Dec-2003 06:51


>> 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 10:46


[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: Sun, 25 Nov 2007