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    copied!<p>I'm not claiming to have invented this, but there is a very complete <a href="http://api.cakephp.org/view_source/text-helper/#line-163" rel="noreferrer"><code>Text::truncate()</code> method in CakePHP</a> which does what you want:</p> <pre><code>function truncate($text, $length = 100, $ending = '...', $exact = true, $considerHtml = false) { if (is_array($ending)) { extract($ending); } if ($considerHtml) { if (mb_strlen(preg_replace('/&lt;.*?&gt;/', '', $text)) &lt;= $length) { return $text; } $totalLength = mb_strlen($ending); $openTags = array(); $truncate = ''; preg_match_all('/(&lt;\/?([\w+]+)[^&gt;]*&gt;)?([^&lt;&gt;]*)/', $text, $tags, PREG_SET_ORDER); foreach ($tags as $tag) { if (!preg_match('/img|br|input|hr|area|base|basefont|col|frame|isindex|link|meta|param/s', $tag[2])) { if (preg_match('/&lt;[\w]+[^&gt;]*&gt;/s', $tag[0])) { array_unshift($openTags, $tag[2]); } else if (preg_match('/&lt;\/([\w]+)[^&gt;]*&gt;/s', $tag[0], $closeTag)) { $pos = array_search($closeTag[1], $openTags); if ($pos !== false) { array_splice($openTags, $pos, 1); } } } $truncate .= $tag[1]; $contentLength = mb_strlen(preg_replace('/&amp;[0-9a-z]{2,8};|&amp;#[0-9]{1,7};|&amp;#x[0-9a-f]{1,6};/i', ' ', $tag[3])); if ($contentLength + $totalLength &gt; $length) { $left = $length - $totalLength; $entitiesLength = 0; if (preg_match_all('/&amp;[0-9a-z]{2,8};|&amp;#[0-9]{1,7};|&amp;#x[0-9a-f]{1,6};/i', $tag[3], $entities, PREG_OFFSET_CAPTURE)) { foreach ($entities[0] as $entity) { if ($entity[1] + 1 - $entitiesLength &lt;= $left) { $left--; $entitiesLength += mb_strlen($entity[0]); } else { break; } } } $truncate .= mb_substr($tag[3], 0 , $left + $entitiesLength); break; } else { $truncate .= $tag[3]; $totalLength += $contentLength; } if ($totalLength &gt;= $length) { break; } } } else { if (mb_strlen($text) &lt;= $length) { return $text; } else { $truncate = mb_substr($text, 0, $length - strlen($ending)); } } if (!$exact) { $spacepos = mb_strrpos($truncate, ' '); if (isset($spacepos)) { if ($considerHtml) { $bits = mb_substr($truncate, $spacepos); preg_match_all('/&lt;\/([a-z]+)&gt;/', $bits, $droppedTags, PREG_SET_ORDER); if (!empty($droppedTags)) { foreach ($droppedTags as $closingTag) { if (!in_array($closingTag[1], $openTags)) { array_unshift($openTags, $closingTag[1]); } } } } $truncate = mb_substr($truncate, 0, $spacepos); } } $truncate .= $ending; if ($considerHtml) { foreach ($openTags as $tag) { $truncate .= '&lt;/'.$tag.'&gt;'; } } return $truncate; } </code></pre>
 

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