How to split content after a space - php

Question

I'm just a newbie in PHP ,
now I have a trouble with the split content function,
I have a string look like this :
$tring = 'World Cup 2014 draw: England's chances of landing tough group rise';
my splitcontent code :
if(strlen($string)<$width){
return $string;
}
$string = substr($string,0,$width);
$string = $string.'...';
return $string;
the result is :
World Cup 2014 draw: England's chances of lan.... ,
when i insert
$string = substr($string,0,strrpos($string,' '));
it look like this :
World Cup 2014 draw: England's chances of... ,
Now I want to my string look like this :
World Cup 2014 draw: England's chances of landing...
What will I do ? Thanks for any helping

Answer 1

This will split the content at $width chars but if it lands on a word, it will match to the end of the word (so it will really be $width+[num chars till end of word if in middle of word]. A "word" being defined as letters, numbers, underscore, hyphen or single quote. This will account for stuff like "England" or "England's" or "pre-text" as a whole word.
$width = 20;
$text = "World Cup 2014 draw: England's chances of landi-ng tough group rise";
preg_match("~^.{".($width-1)."}([\w'-]+)?~i",$text,$m);
$newtext = $m[0].'...';
echo $newtext.'<br/>';

Answer 2

May be this function will help you. It will help you to truncate content or string without letting words to cut in the middle. It also considers HTML tags.
function truncate_content( $text, $length = 100, $ending = '...', $exact = false, $considerHtml = true)
{
if ($considerHtml)
{
// if the plain text is shorter than the maximum length, return the whole text
if (strlen(preg_replace('/<.*?>/', '', $text)) <= $length)
{
return $text;
}
// splits all html-tags to scanable lines
preg_match_all('/(<.+?>)?([^<>]*)/s', $text, $lines, PREG_SET_ORDER);
$total_length = strlen($ending);
$open_tags = array();
$truncate = '';
foreach ($lines as $line_matchings)
{
// if there is any html-tag in this line, handle it and add it (uncounted) to the output
if (!empty($line_matchings[1]))
{
// if it's an "empty element" with or without xhtml-conform closing slash
if (preg_match('/^<(\s*.+?\/\s*|\s*(img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param)(\s.+?)?)>$/is', $line_matchings[1]))
{
// do nothing
// if tag is a closing tag
}
else if (preg_match('/^<\s*\/([^\s]+?)\s*>$/s', $line_matchings[1], $tag_matchings))
{
// delete tag from $open_tags list
$pos = array_search($tag_matchings[1], $open_tags);
if ($pos !== false)
{
unset($open_tags[$pos]);
}
// if tag is an opening tag
}
else if (preg_match('/^<\s*([^\s>!]+).*?>$/s', $line_matchings[1], $tag_matchings))
{
// add tag to the beginning of $open_tags list
array_unshift($open_tags, strtolower($tag_matchings[1]));
}
// add html-tag to $truncate'd text
$truncate .= $line_matchings[1];
}
// calculate the length of the plain text part of the line; handle entities as one character
$content_length = strlen(preg_replace('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', ' ', $line_matchings[2]));
if ($total_length+$content_length> $length)
{
// the number of characters which are left
$left = $length - $total_length;
$entities_length = 0;
// search for html entities
if (preg_match_all('/&[0-9a-z]{2,8};|&#[0-9]{1,7};|[0-9a-f]{1,6};/i', $line_matchings[2], $entities, PREG_OFFSET_CAPTURE)) {
// calculate the real length of all entities in the legal range
foreach ($entities[0] as $entity)
{
if ($entity[1]+1-$entities_length <= $left)
{
$left--;
$entities_length += strlen($entity[0]);
}
else
{
// no more characters left
break;
}
}
}
$truncate .= substr($line_matchings[2], 0, $left+$entities_length);
// maximum lenght is reached, so get off the loop
break;
}
else
{
$truncate .= $line_matchings[2];
$total_length += $content_length;
}
// if the maximum length is reached, get off the loop
if($total_length>= $length) {
break;
}
}
}
else
{
if (strlen($text) <= $length)
{
return $text;
}
else
{
$truncate = substr($text, 0, $length - strlen($ending));
}
}
// if the words shouldn't be cut in the middle...
if (!$exact)
{
// ...search the last occurance of a space...
$spacepos = strrpos($truncate, ' ');
if (isset($spacepos))
{
// ...and cut the text in this position
$truncate = substr($truncate, 0, $spacepos);
}
}
// add the defined ending to the text
$truncate .= $ending;
if($considerHtml)
{
// close all unclosed html-tags
foreach ($open_tags as $tag)
{
$truncate .= '</' . $tag . '>';
}
}
return $truncate;
}
In this
$text is the content or string.
$length is the length you want to cut the string with
$ending is the ending sequence to be added if the content is cut.
$exact specifies whether you need to cut the string exactly without taking in to account the word. If you specifeis $exact to be true, then it will not consider the word.
$considerHtml parameter ask you whether we need to consider html preventing breaking html tags when splitting content.
So in your case you can just use :
$string = "World Cup 2014 draw: England's chances of landing tough group rise";
echo truncate_content($string, $width);
Hope this helps you