我有一个工作的自动完成脚本，链接到我的数据库，但我确定如何排序的结果。
我的表有4列:ID, location, slug, population。表本身大约有1000个条目。
目前，我的自动补全接受用户搜索鼻涕虫，它将搜索鼻涕虫，但我希望自动补全列表结果按人口顺序排序，较高的人口是列表上最高的。
index . php:
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Autocomplete using PHP/MySQL and jQuery</title>
<link rel="stylesheet" href="css/style.css" />
<script type="text/javascript" src="js/jquery.min.js"></script>
<script type="text/javascript" src="js/script.js"></script>
</head>
<body>
<div class="container">
<div class="header">
</div><!-- header -->
<h1 class="main_title">Autocomplete using PHP/MySQL and jQuery</h1>
<div class="content">
<form>
<div class="label_div">Type a keyword : </div>
<div class="input_container">
<input type="text" id="slug" onkeyup="autocomplet2()">
<ul id="list_id"></ul>
</div>
</form>
</div><!-- content -->
<div class="footer">
Powered by Jason's Fingers</a>
</div><!-- footer -->
</div><!-- container -->
</body>
</html>
script.js:
// autocomplete : this function will be executed every time we change the text
function autocomplet2() {
var min_length = 3; // min caracters to display the autocomplete
var keyword = $('#slug').val();
if (keyword.length >= min_length) {
$.ajax({
url: 'ajax_refresh.php',
type: 'POST',
data: {keyword:keyword},
success:function(data){
$('#list_id').show();
$('#list_id').html(data);
}
});
} else {
$('#list_id').hide();
}
}
// set_item : this function will be executed when we select an item
function set_item(item) {
// Changes input to the full name on selecting
$('#slug').val(item);
// Hides list after selection from list
$('#list_id').hide();
}
ajax_refresh.php:
<?php
// PDO connect *********
function connect() {
return new PDO('mysql:host=localhost;dbname=wallettest', 'root', 'butthead', array(PDO::ATTR_ERRMODE => PDO::ERRMODE_EXCEPTION, PDO::MYSQL_ATTR_INIT_COMMAND => "SET NAMES utf8"));
}
$pdo = connect();
$keyword = '%'.$_POST['keyword'].'%';
$sql = "SELECT * FROM population WHERE slug LIKE (:keyword) ORDER BY id ASC LIMIT 0, 10";
$query = $pdo->prepare($sql);
$query->bindParam(':keyword', $keyword, PDO::PARAM_STR);
$query->execute();
$list = $query->fetchAll();
foreach ($list as $rs) {
// put in bold the written text
$slug = str_replace($_POST['keyword'], '<b>'.$_POST['keyword'].'</b>', $rs['slug']);
// add new option
echo '<li onclick="set_item('''.str_replace("'", "''", $rs['slug']).''')">'.$slug.'</li>';
}
?>
您可以将$sql的"ORDER BY"部分设置为:
...ORDER BY population DESC LIMIT 0, 10"
找到了，在这一行:
$sql = "SELECT * FROM country WHERE country_name LIKE (:keyword) ORDER BY country_id ASC LIMIT 0,10 ";