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    <p>I would suggest the use of <a href="http://dev.mysql.com/doc/refman/5.1/en/fulltext-search.html" rel="noreferrer">MySQL FullText Search</a> using this with the <a href="http://dev.mysql.com/doc/refman/5.1/en/fulltext-boolean.html" rel="noreferrer">Boolean Full-Text Searches</a> functionality you should be able to get your desired result.</p> <p>Edit:</p> <p>Requested example based on your requested conditions ("Its just one field and they can pick either of the 4 options (i.e 1 word, exact words, at least 1 word, without the term).")</p> <p>I am assuming you are using php based on your initial post</p> <pre><code>&lt;?php $choice = $_POST['choice']; $query = $_POST['query']; if ($choice == "oneWord") { //Not 100% sure what you mean by one word but this is the simplest form //This assumes $query = a single word $result = mysql_query("SELECT * FROM table WHERE MATCH (field) AGAINST ('{$query}' IN BOOLEAN MODE)"); } elseif ($choice == "exactWords") { $result = mysql_query("SELECT * FROM table WHERE MATCH (field) AGAINST ('\"{$query}\"' IN BOOLEAN MODE)"); } elseif ($choice == "atLeastOneWord") { //The default with no operators if given multiple words will return rows that contains at least one of the words $result = mysql_query("SELECT * FROM table WHERE MATCH (field) AGAINST ('{$query}' IN BOOLEAN MODE)"); } elseif ($choice == "withoutTheTerm") { $result = mysql_query("SELECT * FROM table WHERE MATCH (field) AGAINST ('-{$query}' IN BOOLEAN MODE)"); } ?&gt; </code></pre> <p>hope this helps for full use of the operators in boolean matches see <a href="http://dev.mysql.com/doc/refman/5.1/en/fulltext-boolean.html" rel="noreferrer">Boolean Full-Text Searches</a></p>
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    1. CO+1, this is the best answer, but I'd also detail that fulltext on mysql is only available for myisam tables, not innodb ones. So you choose between transactional consistency or search.
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      1. USAdriano Varoli Piazza
    2. COIf you give some source code which shows how the two features (i.e all words and without the words) can be done with Full text I might accept your answer.
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    3. COI would be happy to provide you with some sample code. If you can tell me are there two separate fields in your search form for with and without or are you using one field? If it's one field you can simply allow the user to append the words the want to exclude with a -.
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