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wordwrap

(PHP 4 >= 4.0.2, PHP 5)

wordwrap — 打断字符串为指定数量的字串

说明

string wordwrap ( string $str [, int $width = 75 [, string $break = "\n" [, bool $cut = false ]]] )

使用字符串断点将字符串打断为指定数量的字串。

参数

str: 输入字符串。
width: 列宽度。
break: 使用可选的 break 参数打断字符串。
cut: 如果 cut 设置为 TRUE ，字符串总是在指定的宽度或者之前位置被打断。因此，如果有的单词宽度超过了给定的宽度，它将被分隔开来。（参见第二个范例）。

返回值

返回打断后的字符串。

范例

Example #1 wordwrap() 范例

  <?php
$text  =  "The quick brown fox jumped over the lazy dog." ;
 $newtext  =  wordwrap ( $text ,  20 ,  "<br />\n" );

echo  $newtext ;
 ?>

以上例程会输出：

The quick brown fox<br />
jumped over the lazy<br />
dog.

Example #2 wordwrap() 范例

  <?php
$text  =  "A very long woooooooooooord." ;
 $newtext  =  wordwrap ( $text ,  8 ,  "\n" ,  true );

echo  " $newtext \n" ;
 ?>

以上例程会输出：

A very
long
wooooooo
ooooord.

参见

nl2br() - 在字符串所有新行之前插入 HTML 换行标记
chunk_split() - 将字符串分割成小块

用户评论:

[#1] kozimbek at mail dot ru [2015-05-02 13:17:50]

After searching and being tired of many non-working mb_wordwrap functions at many places, I finally created a really simple and working solution

<?php function mb_wordwrap($string, $limit) { $string = strip_tags($string); //Strip HTML tags off the text $string = html_entity_decode($string); //Convert HTML special chars into normal text $string = str_replace(array("\r", "\n"), "", $string); //Also cut line breaks if(mb_strlen($string, "UTF-8") <= $limit) return $string; //If input string's length is no more than cut length, return untouched $last_space = mb_strrpos(mb_substr($string, 0, $limit, "UTF-8"), " ", 0, "UTF-8"); //Find the last space symbol position return mb_substr($string, 0, $last_space, "UTF-8").' ...'; //Return the string's length substracted till the last space and add three points } ?>

The function simply searches the last space symbol in the range and returns the string cut till that position. No iterations, no regular expressions and no buffer overload. Tested with large Russian texts and works perfectly.

[#2] zac dot hester at gmail dot com [2015-03-12 14:28:29]

I recently ran into the issue discussed by another contributor to this function (frans-jan at van-steenbeek dot R-E-M-O-V-E dot net). The problem appeared to be how wordwrap() was treating white space. Instead of writing my own version of wordwrap(), I discovered that the "break" parameter is not only used as the inserted string, but also used to detect the existing wrap delimiters (e.g. line endings). If you can manage to "normalize" the wrap delimiters in your original string, you don't need to try to work-around the function wrapping at seemingly odd places (like immediately after one short word). As one quick-and-dirty way to get wordwrap() to play nicely with most use-cases, I did this:

<?php $break = strpos( $content, "\r" ) === false ? "\n" : "\r\n"; $content = wordwrap( $content, 78, $break ); ?>

I also tend to normalize multi-line strings (if my OCD is acting up). You would typically perform this conversion _before_ sending it off to wordwrap().

<?php //quick and simple, but clobbers old-style Mac line-endings $content = str_replace( "\r", '', $content ); //slower, but works with everything $content = preg_replace( "/(\r\n|\r)/", "\n", $content ); //now, wordwrap() will behave exactly as expected $content = wordwrap( $content, 78, "\n" ); ?>

[#3] Alhadis [2015-01-08 00:30:01]

For those interested in wrapping text to fit a width in *pixels* (instead of characters), you might find the following function useful; particularly for line-wrapping text over dynamically-generated images.

If a word is too long to squeeze into the available space, it'll hyphenate it as needed so it fits the container. This operates recursively, so ridiculously long words or names (e.g., URLs or this guy's signature - http://en.wikipedia.org/wiki/Wolfe+585,_Senior) will still keep getting broken off after they've passed the fourth or fifth lines, or whatever.

<?php function pixel_word_wrap($text, $width, $size, $font){ # Passed a blank value? Bail early. if(!$text) return $text; # Check if imagettfbbox is expecting font-size to be declared in points or pixels. static $mult; $mult = $mult ?: version_compare(GD_VERSION, '2.0', '>=') ? .75 : 1; # Text already fits the designated space without wrapping. $box = imagettfbbox($size * $mult, 0, $font, $text); if($box[2] - $box[0] / $mult < $width) return $text; # Start measuring each line of our input and inject line-breaks when overflow's detected. $output = ''; $length = 0; $words = preg_split('/\b(?=\S)|(?=\s)/', $text); $word_count = count($words); for($i = 0; $i < $word_count; ++$i){ # Newline if(PHP_EOL === $words[$i]) $length = 0; # Strip any leading tabs. if(!$length) $words[$i] = preg_replace('/^\t+/', '', $words[$i]); $box = imagettfbbox($size * $mult, 0, $font, $words[$i]); $m = $box[2] - $box[0] / $mult; # This is one honkin' long word, so try to hyphenate it. if(($diff = $width - $m) <= 0){ $diff = abs($diff); # Figure out which end of the word to start measuring from. Saves a few extra cycles in an already heavy-duty function. if($diff - $width <= 0) for($s = strlen($words[$i]); $s; --$s){ $box = imagettfbbox($size * $mult, 0, $font, substr($words[$i], 0, $s) . '-'); if($width > ($box[2] - $box[0] / $mult) + $size){ $breakpoint = $s; break; } } else{ $word_length = strlen($words[$i]); for($s = 0; $s < $word_length; ++$s){ $box = imagettfbbox($size * $mult, 0, $font, substr($words[$i], 0, $s+1) . '-'); if($width < ($box[2] - $box[0] / $mult) + $size){ $breakpoint = $s; break; } } } if($breakpoint){ $w_l = substr($words[$i], 0, $s+1) . '-'; $w_r = substr($words[$i], $s+1); $words[$i] = $w_l; array_splice($words, $i+1, 0, $w_r); ++$word_count; $box = imagettfbbox($size * $mult, 0, $font, $w_l); $m = $box[2] - $box[0] / $mult; } } # If there's no more room on the current line to fit the next word, start a new line. if($length > 0 && $length + $m >= $width){ $output .= PHP_EOL; $length = 0; # If the current word is just a space, don't bother. Skip (saves a weird-looking gap in the text). if(' ' === $words[$i]) continue; } # Write another word and increase the total length of the current line. $output .= $words[$i]; $length += $m; } return $output; }; ?>

[#4] phil_marmotte at yahoo dot fr [2014-06-13 13:13:49]

Another Word wrap from left or right :

public static function myWordWrap ($string, $length=3, $wrap=',', $from='left') {
if ($from=='left') $txt=wordwrap($string, $length, $wrap, true);
    if ($from=='right') {
    $m = strlen($string)%$length;
    if ($m < strlen($string))
    $txt = substr($string,0,$m).$wrap.wordwrap(substr($string,$m),$length, $wrap, true);
    else
    $txt = $string;
    }

    return $txt;
    }

[#5] maikuolan at gmail dot com [2013-04-11 06:23:53]

(Re: kouber at php dot net).

Testing out your function, I can confirm that it works, and it works very well.

However, others that intend to use your function need to be aware that if they use it in conjunction with unverified data (such as raw user input from $_POST, $_GET, etcetera), they are creating potential attack vectors that can be exploited by hackers via script requests containing malicious code. This is because your function is using the preg_replace function in conjunction with the "e" flag (in order to allow the chunk_split bit to execute), which can allow execution of arbitrary code.

Solution: If there is any possibility that $str may contain unverified data (such as raw user input), ensure that the contents of $str is sanitized (such as by using htmlentities/htmlspecialchars/etc) prior to sending it to wrap($str,...).

Not a criticism; I intend to use your function, because I like it. However, just posting this as a note to other users that may not be aware of the importance of data sanitation.

[#6] ytwguru at gmail dot com [2012-05-01 23:01:04]

I've seen a few solutions to the same problem. Here's a solution to breaking long text with a space. In this case it breaks after matching 27 characters.

$content = preg_replace("/([^\s]{27})/", "$1 ", $content);

You can probably write a function for this...

[#7] ju1ius [2012-02-18 03:58:47]

Another solution to utf-8 safe wordwrap, unsing regular expressions.
Pretty good performance and works in linear time.

<?php function utf8_wordwrap($string, $width=75, $break="\n", $cut=false) { if($cut) { // Match anything 1 to $width chars long followed by whitespace or EOS, // otherwise match anything $width chars long $search = '/(.{1,'.$width.'})(?:\s|$)|(.{'.$width.'})/uS'; $replace = '$1$2'.$break; } else { // Anchor the beginning of the pattern with a lookahead // to avoid crazy backtracking when words are longer than $width $pattern = '/(?=\s)(.{1,'.$width.'})(?:\s|$)/uS'; $replace = '$1'.$break; } return preg_replace($search, $replace, $string); } ?>
Of course don't forget to use preg_quote on the $width and $break parameters if they come from untrusted input.

[#8] paul at preinheimer dot com [2011-09-25 16:04:03]

If your goal is to allow a browser to word-wrap nicely, while maintaining a fluid layout, you'll want to break with: &#8203

It's a zero width space character: http://en.wikipedia.org/wiki/Zero-width_space

This way the browser can break where it needs to, without adding a visual distraction of spaces within the text.

e.g.
<?php //Using  here allows the browser to break the line of text, without the visual distraction. $line = wordwrap($line, 10, "", true); ?>

#PROTIP: leave a comment, so the next person to read your code has a clue what you've done.

[#9] info at hsdn dot org [2011-07-08 08:41:38]

Wordwrap with UTF-8 supports, returns as array.

<?php function mb_wordwrap_array($string, $width) { if (($len = mb_strlen($string, 'UTF-8')) <= $width) { return array($string); } $return = array(); $last_space = FALSE; $i = 0; do { if (mb_substr($string, $i, 1, 'UTF-8') == ' ') { $last_space = $i; } if ($i > $width) { $last_space = ($last_space == 0) ? $width : $last_space; $return[] = trim(mb_substr($string, 0, $last_space, 'UTF-8')); $string = mb_substr($string, $last_space, $len, 'UTF-8'); $len = mb_strlen($string, 'UTF-8'); $i = 0; } $i++; } while ($i < $len); $return[] = trim($string); return $return; } ?>

[#10] altin_bardhi at yahoo dot co dot uk [2011-01-27 16:03:55]

Here I have come out with a possibly very useful wordwrap code snippet.

Apparently what this piece of code does is: it takes the entered text and looks for words longer than the defined ??$chunk_length?? if it finds any, it splits the long words and then it concatenates the whole string back to a new string with longer words separated by a dash character in this case.

After it has accomplished this task it then inserts an HTML line break after a specified ??$line_length?? (Depending on your containers width requirements)

<?php //Start function explode_ wrap function explode_wrap($text, $chunk_length, $line_length){ //Explode all the words separated by spaces in a string $string_chunks = explode(' ', $text); // Get each split word from the array $sring_chunks_array => key => value foreach ($string_chunks as $chunk => $value) { if(strlen($value) >= $chunk_length){ //Split the chunks/words which are longer than $chunk_length $new_string_chunks[$chunk] = chunk_split($value, $chunk_length, ' - '); }else { //Do not split the normal length words $new_string_chunks[$chunk] = $value; } }//End foreach loop //Concatenate back the all the words $new_text=implode(' ', $new_string_chunks); return wordwrap($new_text, $line_length, '<br />'); }//End function ?>

[#11] nbenitezl[arroba]gmail[dot]com [2010-12-02 04:56:08]

Hi, this function is like wordwrap but it ignores html tags, it works like wordwrap when called with fourth parameter as true. It's based on a function I find here but improved to closer match the output of wordwrap (i.e. removed spaces at start of line) and also to improve performance.

Hope it can be useful for you :-)
<?php function htmlwrap(&$str, $maxLength, $char='<br />'){ $count = 0; $newStr = ''; $openTag = false; $lenstr = strlen($str); for($i=0; $i<$lenstr; $i++){ $newStr .= $str{$i}; if($str{$i} == '<'){ $openTag = true; continue; } if(($openTag) && ($str{$i} == '>')){ $openTag = false; continue; } if(!$openTag){ if($str{$i} == ' '){ if ($count == 0) { $newStr = substr($newStr,0, -1); continue; } else { $lastspace = $count + 1; } } $count++; if($count==$maxLength){ if ($str{$i+1} != ' ' && $lastspace && ($lastspace < $count)) { $tmp = ($count - $lastspace)* -1; $newStr = substr($newStr,0, $tmp) . $char . substr($newStr,$tmp); $count = $tmp * -1; } else { $newStr .= $char; $count = 0; } $lastspace = 0; } } } return $newStr; } ?>

[#12] Ivan Lisnik [2010-06-11 03:26:11]

here is my example of UTF-8 wordwrap
<?php function wordwrap($str, $width, $break) { $return = ''; $br_width = mb_strlen($break, 'UTF-8'); for($i = 0, $count = 0; $i < mb_strlen($str, 'UTF-8'); $i++, $count++) { if (mb_substr($str, $i, $br_width, 'UTF-8') == $break) { $count = 0; $return .= mb_substr($str, $i, $br_width, 'UTF-8'); $i += $br_width - 1; } if ($count > $width) { $return .= $break; $count = 0; } $return .= mb_substr($str, $i, 1, 'UTF-8'); } return $return; } ?>

[#13] kouber at php dot net [2010-05-27 02:34:06]

If you need a function to cut only words longer than N characters, feel free to use the function below:

<?php function wrap($str, $width=75, $break="\n") { return preg_replace('#(\S{'.$width.',})#e', "chunk_split('$1', ".$width.", '".$break."')", $str); } echo wrap('aaaa bbb cc dddd-dddd', 3, ' '); ?>

The above example will output: "aaa a bbb cc ddd d-d ddd "

[#14] ojs-hp at web dot de [2009-10-30 10:06:14]

After I got some problems with my function to convert a BB-text into HTML. Long words didn't really fit into the layout and only wordwarp() also added breaks to words which would fit into the layout or destroy the other HTML-tags....
So this is my solution. Only words with strlen() >= 40 are edited with wordwarp().

<?php function bb2html($bb) { $words= explode(' ', $bb); // string to array foreach ($words as $word) { $break = 0; for ($i = 0; $i < strlen($word); $i++) { if ($break >= 40) { $word= wordwrap($word, 40, '-<br>', true); //add <br> every 40 chars $break = 0; } $break++; } $newText[] = $word; //add word to array } $bb = implode(' ', $newText); //array to string return $bb; } ?>

[#15] Marcin Dobruk [zuku3000 at yahoo dot co dot uk] [2009-06-15 02:21:09]

Word wrap from left to right (standard) and from right to left.

<?php function myWordWrap ($string, $length=3, $wrap=',', $from='left') { if ($from=='left') $txt=wordwrap($string, $length, $wrap, true); if ($from=='right') { // string to array $arr_l=array(); for ($a=0;strlen($string)>$a;$a++) $arr_l[$a]=$string{$a}; // reverse array $arr_r=array_reverse($arr_l); // array to string $string_r=''; foreach ($arr_r as $arr_line => $arr) $string_r.=$arr; // add wrap to reverse string $string_r=wordwrap($string_r, $length, $wrap, true); // reverse string to array $arr_r=array(); for ($a=0;strlen($string_r)>$a;$a++) $arr_r[]=$string_r{$a}; // reverse array again $arr_l=array_reverse($arr_r); // string with wrap $txt=''; foreach ($arr_l as $arr_line => $arr) $txt.=$arr; } return $txt; } ?>

[#16] r dot hartung at roberthartung dot de [2009-03-23 04:26:32]

I was wondering about my CMS to break up code but only non-HTML code - I didn't found anything so I came up with this little solution:

<?php function wordWrapIgnoreHTML($string, $length = 45, $wrapString = "\n") { $wrapped = ''; $word = ''; $html = false; $string = (string) $string; for($i=0;$i<strlen($string);$i+=1) { $char = $string[$i]; if($char === '<') { if(!empty($word)) { $wrapped .= $word; $word = ''; } $html = true; $wrapped .= $char; } elseif($char === '>') { $html = false; $wrapped .= $char; } elseif($html) { $wrapped .= $char; } elseif($char === ' ' || $char === "\t" || $char === "\n") { $wrapped .= $word.$char; $word = ''; } else { $word .= $char; if(strlen($word) > $length) { $wrapped .= $word.$wrapString; $word = ''; } } } if($word !== ''){ $wrapped .= $word; } return $wrapped; } $str = '<a href="http://www.example.de">'; $str .= 'Test-STRRRRRRRRRRRRRRRRRRIIIIIIIIIIIIIIIIIIIIIIING</a>'; $str .= ''; echo wordWrapIgnoreHTML($str, 25, '[BREAK]'); // Output: <a href="http://www.roberthartung.de"> // Test-STRRRRRRRRRRRRRRRRRRI[BREAK] // IIIIIIIIIIIIIIIIIIIIIING // </a> ?>

[NOTE BY danbrown AT php DOT net: Contains a bug fix provided by (jaw AT condidact DOT dk) on 02-APR-09 to address an issue where "the last word in a non-html-wrapped string will be omitted."]

[#17] Matt at newbiewebdevelopment dot idk [2009-03-04 13:53:17]

My version of multibyte wordwrap

<?php function mb_wordwrap($string, $width=75, $break="\n", $cut = false) { if (!$cut) { $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.',}\b#U'; } else { $regexp = '#^(?:[\x00-\x7F]|[\xC0-\xFF][\x80-\xBF]+){'.$width.'}#'; } $string_length = mb_strlen($string,'UTF-8'); $cut_length = ceil($string_length / $width); $i = 1; $return = ''; while ($i < $cut_length) { preg_match($regexp, $string,$matches); $new_string = $matches[0]; $return .= $new_string.$break; $string = substr($string, strlen($new_string)); $i++; } return $return.$string; } $mb_string = "????????";//Hello in Japanese $cut_mb_string = mb_wordwrap($mb_string,1," ",true); //?? ?? ?? ?? ?? print($cut_mb_string); ?>

[#18] php at maranelda dot org [2008-09-16 04:17:19]

Anyone attempting to write a text email client should be aware of the following:

<?php $a = "some text that must wrap nice"; $a = wordwrap($a, 9); echo $a; // some text // that must // wrap nice $a = wordwrap($a, 9); echo $a; // some text // that // must // wrap // nice ?>

Subsequent uses of wordwrap() on already wrapped text will take the end-of-line characters into account when working out line length, thus reading each line that just fit nicely the first time around as being one character too long the second. This can be a problem when preparing a text email that contains (eg.) a forwarded email which has already been word-wrapped.

Solutions below which explode() the text on end-of-lines and wordwrap() the resulting strings separately take care of this nicely.

[#19] $del=' at '; 'sanneschaap' dot $del dot 'gmail dot com' [2008-04-17 01:41:48]

These functions let you wrap strings comparing to their actual displaying width of proportional font. In this case Arial, 11px. Very handy in some cases since CSS3 is not yet completely supported. 100 strings = ~5 ms

My old sheep word wrap function (posted at the bottom of this page, is kinda old dated and this one is faster and more accurate).

<?php //the width of the biggest char @ $fontwidth = 11; //each chargroup has char-ords that have the same proportional displaying width $chargroup[0] = array(64); $chargroup[1] = array(37,87,119); $chargroup[2] = array(65,71,77,79,81,86,89,109); $chargroup[3] = array(38,66,67,68,72,75,78,82,83,85,88,90); $chargroup[4] = array(35,36,43,48,49,50,51,52,53,54,55,56,57,60,61,62,63, 69,70,76,80,84,95,97,98,99,100,101,103,104,110,111,112, 113,115,117,118,120,121,122,126); $chargroup[5] = array(74,94,107); $chargroup[6] = array(34,40,41,42,45,96,102,114,123,125); $chargroup[7] = array(44,46,47,58,59,91,92,93,116); $chargroup[8] = array(33,39,73,105,106,108,124); //how the displaying width are compared to the biggest char width $chargroup_relwidth[0] = 1; //is char @ $chargroup_relwidth[1] = 0.909413854; $chargroup_relwidth[2] = 0.728241563; $chargroup_relwidth[3] = 0.637655417; $chargroup_relwidth[4] = 0.547069272; $chargroup_relwidth[5] = 0.456483126; $chargroup_relwidth[6] = 0.36589698; $chargroup_relwidth[7] = 0.275310835; $chargroup_relwidth[8] = 0.184724689; //build fast array $char_relwidth = null; for ($i=0;$i<count($chargroup);$i++){ for ($j=0;$j<count($chargroup[$i]);$j++){ $char_relwidth[$chargroup[$i][$j]] = $chargroup_relwidth[$i]; } } //get the display width (in pixels) of a string function get_str_width($str){ global $fontwidth,$char_relwidth; $result = 0; for ($i=0;$i<strlen($str);$i++){ $result += $char_relwidth[ord($str[$i])]; } $result = $result * $fontwidth; return $result; } //truncates a string at a certain displaying pixel width function truncate_str_at_width($str, $width, $trunstr='...'){ global $fontwidth,$char_relwidth; $trunstr_width = get_str_width($trunstr); $width -= $trunstr_width; $width = $width/$fontwidth; $w = 0; for ($i=0;$i<strlen($str);$i++){ $w += $char_relwidth[ord($str[$i])]; if ($w > $width) break; } $result = substr($str,0,$i).$trunstr; return $result; // texas is the reason rules at 10am :) } ?>

[#20] joachim [2008-04-16 14:42:18]

There seems to be a difference between php 5.1 and 5.2 in how wordwrap counts characters (all on Mac OSX 10.5.2):

/Applications/MAMP/bin/php5/bin/php --version
PHP 5.1.6 (cli) (built: Sep 8 2006 10:25:04)

/Applications/MAMP/bin/php5/bin/php -r 'echo wordwrap("In aller Freundschaft (50)_UT", 20) . "\n";'
In aller
Freundschaft
(50)_UT

php --version
PHP 5.2.5 (cli) (built: Feb 20 2008 12:30:47)

php -r 'echo wordwrap("In aller Freundschaft (50)_UT", 20) . "\n";'
In aller
Freundschaft (50)_UT

[#21] Peter [2006-12-19 05:00:18]

The main concern when you have a text in a cell is for long words that drags the cell margins. This function will break words in a text that have more then $nr characters using the "-" char.

<?php function processtext($text,$nr=10) { $mytext=explode(" ",trim($text)); $newtext=array(); foreach($mytext as $k=>$txt) { if (strlen($txt)>$nr) { $txt=wordwrap($txt, $nr, "-", 1); } $newtext[]=$txt; } return implode(" ",$newtext); } ?>

[#22] Edward [2006-10-18 06:12:16]

I needed a function to justify the text - not just wrap it. I came up with this:

<?php function justify($text, $width, $break) { $marker = "__$%@random#$()__"; // lines is an array of lines containing the word-wrapped text $wrapped = wordwrap($text, $width, $marker); $lines = explode($marker, $wrapped); $result = ""; foreach ($lines as $line_index=>$line) { $line = trim($line); $words = explode(" ", $line); $words = array_map("trim", $words); $wordcount = count($words); $wordlength = strlen(implode("", $words)); if (3*$wordlength < 2*$width) { // don't touch lines shorter than 2/3 * width continue; } $spaces = $width - $wordlength; $index = 0; do { $words[$index] = $words[$index] . " "; $index = ($index + 1) % ($wordcount - 1); $spaces--; } while ($spaces>0); $lines[$line_index] = implode("", $words); } return implode($break, $lines); } ?>

[#23] Dave Lozier - dave at fusionbb.com [2005-11-30 12:48:16]

If you'd like to break long strings of text but avoid breaking html you may find this useful. It seems to be working for me, hope it works for you. Enjoy. :)

<?php function textWrap($text) { $new_text = ''; $text_1 = explode('>',$text); $sizeof = sizeof($text_1); for ($i=0; $i<$sizeof; ++$i) { $text_2 = explode('<',$text_1[$i]); if (!empty($text_2[0])) { $new_text .= preg_replace('#([^\n\r .]{25})#i', '\\1 ', $text_2[0]); } if (!empty($text_2[1])) { $new_text .= '<' . $text_2[1] . '>'; } } return $new_text; } ?>

[#24] frans-jan at van-steenbeek dot R-E-M-O-V-E dot net [2005-11-16 06:17:50]

Using wordwrap is usefull for formatting email-messages, but it has a disadvantage: line-breaks are often treated as whitespaces, resulting in odd behaviour including lines wrapped after just one word.

To work around it I use this:

<?php function linewrap($string, $width, $break, $cut) { $array = explode("\n", $string); $string = ""; foreach($array as $key => $val) { $string .= wordwrap($val, $width, $break, $cut); $string .= "\n"; } return $string; } ?>

I then use linewrap() instead of wordwrap()

hope this helps someone

[#25] bruceboughton @ google mail [2005-05-04 15:08:44]

I found that wordwrap deletes the spaces it wraps on. If you want to break up a string which doesn't consist of words, you may find this behaviour undesirable, as I did when trying to wordwrap a Regular Expression to 80 characters (for display along with test string, matches, etc.).

To preserve the spaces and still achieve a consistent cut length, you need to replace spaces with a suitable one-character replacement. I chose the ASCII non-printing character SUB (ASCII #26; some old telephone code meaning substitute):

<?php $regex= str_replace(' ', chr(26), $regex); $regex= wordwrap($regex, 80, '<br />', TRUE); $regex= str_replace(chr(26), ' ', $regex); ?>

(Of course, you need to replace 80 with your column length and '<br />' with your break string)