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php need to find random word over 5 characters and replace it

td234
td234 asked
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Last Modified: 2013-12-13
I am building a list and want to take one word in each list item and highlight it. I do not want to highlight a word like "a", "and", or "the" so I want find words over 4 or 5 characters. When found I need to put a SPAN or FONT tag around it and replace it in the string.

      while(list($highlight) = db_fetch_array($qid_hl)) {
            $words = explode("\s", $highlight);
            $keyword = $words[rand(0, count($words)-1)];
                $newword = "<font color=\"red\">".$keyword."</font>";
                $highlight = str_replace($keyword,$newword,$highlight);
      }

This does not take into account the size of the word and it sure seems like a lot of lines of code to do what I need to do. ANy siggestions and help are greatly apprecaited.

Thom
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