php - 远程缓存自动完成问题

Question

我有一个使用远程数据源的自动完成功能。我尝试缓存它，就像 http://jqueryui.com/autocomplete/#remote-with-cache 中那样.

不幸的是，有些东西不起作用，但在 Chrome 开发者面板中没有显示任何错误。

代码如下:

    <script>
        $(function() {
            var cache = {};
            $( "#search" ).autocomplete({
                minLength: 2,
                source: function( request, response ) {
                    var term = request.term;
                    if ( term in cache ) {
                        response( cache[ term ] );
                        return;
                    }
                $.getJSON( "suggest.php", request, function( data, status, xhr ) {
                    cache[ term ] = data;
                    response( data );
                    });
            });
            $.ui.autocomplete.prototype._renderItem = function (ul, item) {
                        item.label = item.label.replace(new RegExp("(?![^&;]+;)(?!<[^<>]*)(" + $.ui.autocomplete.escapeRegex(this.term) + ")(?![^<>]*>)(?![^&;]+;)", "gi"), "<strong>$1</strong>");
                        return $("<li></li>")
                                .data("item.autocomplete", item)
                                .append("<a>" + item.label + "</a>")
                                .appendTo(ul);
                    };
        });
    </script>

和 html:

    <form method='get' action='search.php'>
     <input type='text' name='q' placeholder='Search' id="search" autocomplete="off"/>
     <input type='submit' value=''>
    </form>

和 php:

<?php
  $db = new PDO('mysql:host=localhost;dbname=gjpages', 'root', 'mysql96');
  $db->setAttribute(PDO::ATTR_ERRMODE, PDO::ERRMODE_EXCEPTION);

  if (!isset($_GET['term'])) {
     header('HTTP/1.0 400 Bad Request');
     echo 'Missing term parameter in request';
     exit();
  }

 $queryString = strtolower($_GET["term"]);
 $query = $db->prepare("SELECT name FROM company WHERE name LIKE :qs" . " UNION SELECT cat AS name FROM cat WHERE cat LIKE :qs" . " UNION SELECT subcat AS name FROM subcat WHERE subcat LIKE :qs " . " LIMIT 4");
 $query->execute(array(':qs' => $queryString . '%'));
 $query->setFetchMode(PDO::FETCH_NAMED);
 $result = array_map(function($row) {
    return array('label'=>$row['name'],'value'=>$row['name']);
 }, $query->fetchAll());

 header('Content-Type: application/json');
 echo(json_encode($result));
?>

php 工作正常，这是 javascript 有问题(我相信)。有什么问题？

感谢您的帮助!

Answer 1

SandorA 评论有效。

我需要将其更改为 {term: request.term} 才能使其再次正常工作。