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POTruncate a string in php without cutting words
 

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    <blockquote> <p><strong>Possible Duplicate:</strong><br> <a href="https://stackoverflow.com/questions/5519890/extract-a-fixed-number-of-chars-from-an-array-just-full-words">Extract a fixed number of chars from an array, just full words</a> </p> </blockquote> <p>I need to truncate strings when they are longer than 20 chars. Words must always stay together, so that this:</p> <p><strong>say hello to my little friend.</strong></p> <p>becomes this:</p> <p><strong>say hello to my...</strong></p> <p>instead of this:</p> <p><strong>say hello to my litt...</strong></p> <p>I set up this function based on a comment in a very <a href="https://stackoverflow.com/questions/79960/how-to-truncate-a-string-in-php-to-the-word-closest-to-a-certain-number-of-chara/80066#comment10194834_80066">old thread</a>. The problem with this regex is that it removes the last word of the sentence (when there are 2 words or more).</p> <pre><code>function gen_string($string,$min=20) { $new = preg_replace('/\s+?(\S+)?$/','',substr($string,0,$min)); if(strlen($new) &lt; strlen($string)) $new .= '&amp;hellip;'; return $new; } </code></pre> <p>Can someone give me a hand with the regex? Thanks!</p> <p><strong>Solution</strong> by <a href="https://stackoverflow.com/users/1018582/alasdair">Alasdair</a> (with a few retouches)</p> <pre><code>function gen_string($string,$max=20) { $tok = strtok($string,' '); $sub = ''; while($tok !== false &amp;&amp; mb_strlen($sub) &lt; $max) { if(strlen($sub) + mb_strlen($tok) &lt;= $max) { $sub .= $tok.' '; } else { break; } $tok = strtok(' '); } $sub = trim($sub); if(mb_strlen($sub) &lt; mb_strlen($string)) $sub .= '&amp;hellip;'; return $sub; } </code></pre>
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    1. CODuplicate [#1](http://stackoverflow.com/questions/79960/how-to-truncate-a-string-in-php-to-the-word-closest-to-a-certain-number-of-chara) [#2](http://stackoverflow.com/questions/965235/how-can-i-truncate-a-string-in-php) [#3](http://stackoverflow.com/questions/1270644/php-truncate-text-at-word-boundaries) and maybe more...
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