無限滾動與jQuery的MySQL和PHP
[英]infinite scrolling with jquery mysql and php
問題描述
我正在將此代碼用於正在進行無限滾動的項目。 一切正常，我只需要將另一個參數傳遞給我的php文件。 例如，我需要將“ sortby = new”參數傳遞給我的php文件。 如果您能告訴我該怎么做將是適當的。
Index.php
<!DOCTYPE HTML>
<html>
<head>
<title>Scroll Pagination</title>
<link rel="stylesheet" type="text/css" href="style.css" />
<script src="jquery.js"> </script>
<script src="javascript.js"> </script>
<script type="text/javascript" src="//use.typekit.net/vue1oix.js"></script>
<script type="text/javascript">try{Typekit.load();}catch(e){}</script>
<style type="text/css">
</style>
<script>
$(document).ready(function() {
$('#content').scrollPagination({
nop : 10, // The number of posts per scroll to be loaded
offset : 0, // Initial offset, begins at 0 in this case
error : 'No More Posts!', // 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">
</div>
</body>
</html>
ajex.php
<?php
include('db.php');
$offset = is_numeric($_POST['offset']) ? $_POST['offset'] : die();
$postnumbers = is_numeric($_POST['number']) ? $_POST['number'] : die();
if($run = $mysqli->query("SELECT * FROM posts ORDER BY id DESC LIMIT ".$postnumbers." OFFSET ".$offset)){
while($row = mysqli_fetch_array($run)) {
$content = substr(strip_tags($row['description']), 0, 500);
echo '<h1><a href="'.$row['id'].'">'.$row['title'].'</a></h1><hr />';
echo '<p>'.$content.'...</p><hr />';
}
$run->close();
}else{
printf("Error: %s\n", $mysqli->error);
}
?>
的JavaScript
(function($) {
$.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 : 'No More Posts!', // 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 = 'Scroll for more or click here';
else $initmessage = 'Click for more';
// 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('Loading Posts');
// 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);
1 個解決方案
解決方案1
0 2013-06-06 07:38:56
您應該在JavaScript中投放類似這樣的廣告（值“ new”在此處經過硬編碼，您應根據需要進行更改）：
$.post('ajax.php', {
action : 'scrollpagination',
number : $settings.nop,
offset : offset,
data: {
sortby:'new',
}
},
這里是對$ .post的引用：
如何在PHP中使用jQuery.ajax和jScroll來制作無限滾動頁面
[英]How to use jQuery.ajax and jScroll with PHP to make infinite scrolling page
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