コンテンツを表示するために無限にスクロールするモバイル サイトを開発しています。エンドレス スクロールはこのスクリプトで実現されます(私の実装は以下のとおりです)。スクリプトは想定どおりに機能します。
ただし、一部のコンテンツはさまざまなタイプに分類されます。エンドレス スクロールのないデスクトップ バージョンでは、型は GET メソッドを使用してフィルター処理されます。ただし、データベースに接続するための実際の php は別の「ajax.php」に格納されているため、GET に含まれるフィルター パラメータが渡されず、ajax.php は何も返されません。これを修正する方法はありますか？前もって感謝します
次の間隔で表示するページ:
<!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>
<script src="javascript.js"></script>
<script>
$(document).ready(function() {
$('#content').scrollPagination({
nop : 5, // The number of posts per scroll to be loaded
offset : 0, // Initial offset, begins at 0 in this case
error : ' ', // When the user reaches the end this is the message that is
// displayed. You can change this if you want.
delay : 500, // When you scroll down the posts will load after a delayed amount of time.
// This is mainly for usability concerns. You can alter this as you see fit
scroll : true // The main bit, if set to false posts will not load as the user scrolls.
// but will still load if the user clicks.
});
});
</script>
</head>
<body>
<div id="content">
<!-- infinite scroll content here -->
</div>
</body>
</html>
javascript.js:
(function($) {
$.fn.scrollPagination = function(options) {
var settings = {
nop : 10, // The number of posts per scroll to be loaded
offset : 0, // Initial offset, begins at 0 in this case
error : ' ', // When the user reaches the end this is the message that is
// displayed. You can change this if you want.
delay : 500, // When you scroll down the posts will load after a delayed amount of time.
// This is mainly for usability concerns. You can alter this as you see fit
scroll : true // The main bit, if set to false posts will not load as the user scrolls.
// but will still load if the user clicks.
}
// Extend the options so they work with the plugin
if(options) {
$.extend(settings, options);
}
// For each so that we keep chainability.
return this.each(function() {
// Some variables
$this = $(this);
$settings = settings;
var offset = $settings.offset;
var busy = false; // Checks if the scroll action is happening
// so we don't run it multiple times
// Custom messages based on settings
if($settings.scroll == true) $initmessage = '顯示更多';
else $initmessage = '顯示更多';
// Append custom messages and extra UI
$this.append('<div class="content"></div><div class="loading-bar">'+$initmessage+'</div>');
function getData() {
// Post data to ajax.php
$.post('ajax.php', {
action : 'scrollpagination',
number : $settings.nop,
offset : offset,
}, function(data) {
// Change loading bar content (it may have been altered)
$this.find('.loading-bar').html($initmessage);
// If there is no data returned, there are no more posts to be shown. Show error
if(data == "") {
$this.find('.loading-bar').html($settings.error);
}
else {
// Offset increases
offset = offset+$settings.nop;
// Append the data to the content div
$this.find('.content').append(data);
// No longer busy!
busy = false;
}
});
}
getData(); // Run function initially
// If scrolling is enabled
if($settings.scroll == true) {
// .. and the user is scrolling
$(window).scroll(function() {
// Check the user is at the bottom of the element
if($(window).scrollTop() + $(window).height() > $this.height() && !busy) {
// Now we are working, so busy is true
busy = true;
// Tell the user we're loading posts
$this.find('.loading-bar').html('載入中...');
// Run the function to fetch the data inside a delay
// This is useful if you have content in a footer you
// want the user to see.
setTimeout(function() {
getData();
}, $settings.delay);
}
});
}
// Also content can be loaded by clicking the loading bar/
$this.find('.loading-bar').click(function() {
if(busy == false) {
busy = true;
getData();
}
});
});
}
})(jQuery);
ajax.php:
<?php
mysql_connect('host', 'username', 'password') or die();
mysql_select_db('database');
#START enable chinese encoding
mysql_query("SET character_set_results=utf8");
#END enable chinese encoding
$offset = is_numeric($_POST['offset']) ? $_POST['offset'] : die();
$postnumbers = is_numeric($_POST['number']) ? $_POST['number'] : die();
$category = mysql_real_escape_string($_GET['category']);
$run = mysql_query("SELECT * FROM table WHERE category='$category' ORDER BY date DESC LIMIT ".$postnumbers." OFFSET ".$offset);
while($row = mysql_fetch_array($run)) {
echo '
<a href="/video/video.php?id=' . $row['id'] . '&relatedgroup=' . $row['relatedgroup'] . '">
<div id="contentitemwrap">
<div id="videostripe"> </div>
<div id="contentitemtitle">
<h2>' . $row['name'] . ' <span class="relatedtype">(' . $row['relatedtype'] . ')</span></h2>
於' . $row['date'] . '發表
<p class="contenttext">' . $row['fbdescription'] . '</p>
</div>
<div id="widescreenimagewrap">
<div id="widescreenimageratio">
</div>
<div id="widescreenimage">
<img id="img100" src="' . $row['thumbnail'] . '" />
</div>
</div>
</div>
</a>
';
}
?>