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2012-05-01T16:07:35.370
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2012-05-02T13:55:40.110
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<p>You might be confusing AutoComplete and Search Term Highlighting. Do you want to:</p> <ol> <li>Slowly reveal possible text choices as the user types more letters (i.e. Google Suggestions) -OR-</li> <li>Highlight the already searched for term in a search results page</li> </ol> <p>Or maybe you want to do both, but it looks like you're talking about Highlighting from the sample code, although your question is about AutoComplete...</p> <p>Anyway here's some code for Autocomplete of the description and Search Term highlighting:</p> <pre><code><?php $q = filter_var($_REQUEST['q'], FILTER_SANITIZE_STRING); $query = (isset($q) && !empty($q)) ? $q : ""; ?> <!DOCTYPE html> <html> <head> <meta charset="utf-8" /> <title>Autocomplete/SearchHighlighting Example</title> <link type="text/css" href="css/ui-lightness/jquery-ui-1.8.20.custom.css" rel="stylesheet" /> <style type="text/css"> span.highlighted { background-color: #FFF6C6; font-weight: bold; } span.term0 { color: #161633; } span.term1 { color: #331616; } span.term2 { color: #163316; } </style> <script type="text/javascript" src="js/jquery-1.7.2.min.js"></script> <script type="text/javascript" src="js/jquery-ui-1.8.20.custom.min.js"></script>  <style type="text/css"> header, section, footer, aside, nav, article, figure, figcaption, audio, video, canvas { display:block; } </style> </head> <body> <form id="search" name="search"> <label for="q">Search: </label><input type="text" id="q" name="q" value="<?php echo $query; ?>" placeholder="Enter a search term" /> </form> <div id="RecentEdition"> <?php $schools = simplexml_load_file('ecoles.xml'); foreach ($schools->RecentEdition as $RecentEdition): foreach ($RecentEdition->school as $school): ?> <figure> <img src='<?php echo "{$school->image} \n"; ?>' title='' /> <figcaption> <h3>Contents</h3> <p class="over"> <ul id="results"> <?php foreach ($school->content as $content): ?> <?php foreach ($content->chap as $chap): ?> <li><a href="<?php echo "{$chap['link']} \n"; ?>"><?php echo "{$chap} \n"; ?></a></li> <?php endforeach; ?> <?php endforeach; ?> </ul> </p> <p class="desc"><?php echo "{$school->description} \n"; ?></p> <p class="go"> <a href="<?php echo "{$school->link} \n"; ?>">View &#187;</a> </p> </figcaption> </figure> <?php endforeach; ?> <?php endforeach; ?> </div> <script type="text/javascript"> $(function() { //Autocomplete $("#q").autocomplete({ //define callback to format results source: function(req, add){ //pass request to server $.getJSON('search.php?callback=?', req, function(data) { var suggestions = []; //create array for response objects //process response $.each(data, function(i, terms){ suggestions.push(terms.term); }); add(suggestions); //pass array to callback }); }, //define select handler: Search Term Highlighting function select: function(match, keywords) { var rawSearchString = $('#q').val().replace(/[a-zA-Z0-9\?\&\=\%\#]+s\=(\w+)(\&.*)?/,"$1"); // Return sanitized search string if it exists (term should be FIRST URL PARAMETER) var searchString = rawSearchString.replace(/ /g,"\|").replace("?term=",""); // Replace '+' and '%20' with '|' for regex var searchTerms = searchString.split('|'); // Split search terms on '|' and iterate over resulting array for (var j in searchTerms) { var regex = new RegExp(">([^<]*)?("+searchTerms[j]+")([^>]*)?<", "ig"); // this regex is the secret, it prevents text within tag declarations from being affected var tempHTML = $('#RecentEdition').html(); // Do regex replace $('#RecentEdition').html(tempHTML.replace(regex, '>$1<span class="highlighted term'+j+'">$2</span>$3<')); // Inject span with class of 'highlighted termX' for term highlighting } } }); }); </script> </body> </html> </code></pre> <p>And the PHP search file (call it "search.php") using xPath: </p> <pre><code><?php header('content-type: application/json; charset=utf-8'); $term = urldecode($_REQUEST['term']); $callback = $_GET["callback"]; $html = new DOMDocument(); @$html->load("ecoles.xml"); $xpath = new DOMXPath($html); $query = "//schools/RecentEdition/school/description[contains(.,'".$term."')]"; $nodelist = $xpath->query($query); $i = 0; foreach ($nodelist as $n) { $result = trim($n->nodeValue); $resultArray[$i] = array( "term" => str_replace('"',"'",substr($result,strpos($result,$term),25)) ); $i++; } $resultJSON = json_encode($resultArray); echo $callback."(".$resultJSON.")"; ?> </code></pre> <p>DEMO here: <a href="http://bcmoney-mobiletv.com/widgets/autocomplete/" rel="nofollow">http://bcmoney-mobiletv.com/widgets/autocomplete/</a></p>
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