This article mainly introduces the non-refresh paging function implemented by PHP+Ajax, and analyzes the related implementation techniques of PHP+ajax through the pdo operation class to read the database and display it in paging based on specific examples. It also comes with demo source code for readers to download. For reference, friends who need it can refer to it. I hope it can help everyone.

Note: The source code of some of the class libraries used in this article can be found in previous articles. I will indicate the link in the article. In order to shorten the length of the article, the resulting reading We apologize for the inconvenience.

This article explains the Ajax implementation of refresh-free paging, implementation principles, code display, and code download.

Some knowledge needs to be explained here:

1. The benefits of Ajax without refreshing the page: Provide a good customer experience, obtain data from the database in the background through Ajax and display it, and eliminate the need to wait for the page to load The blank state that appears;

2. So, is the Ajax non-refresh page running on a dynamic page (.php)? Or a static page (.html/.htm/.shtml)? The answer is: static page;

3. Implementation principle: The data returned from the dynamic page is obtained and displayed through the combination of front-end JS script program and Ajax.

Okay, let’s explain the code below:

Since it is running on a static page, we first create a static HTML page. The code list of index.html is as follows.

index.html

 





 
数据加载中...

In the code list, we loaded an Ajax class library, which can be found at http://www.jb51. Found in the net/article/82066.htm article (with usage instructions)

In this static page, only a "Data loading..." will be displayed, and there will be no data. At this time, we need a JS script to obtain data from the database through Ajax. The JS script is as follows:

Read the above code carefully, you will find the following phenomenon:

1. setPage(pageNum) is extracted from the database JS function interface of data;
2. Ajax obtains data through article.php file;
3. article.php?page=xx, where xx is the page number data to be obtained,
setPage( 1): Get the data on page 1;
setPage(2): Get the data on page 2;
setPage(100): Get the data on page 100;
......
Then, How to get data from article.php file? Please see the code listing below.

article.php

total('article'),20); // $m->total('article') 获取 article 表的记录数；10为每页显示十条
$result = $m->fetchAll('article', '*', '', '', $page->limit); // 取出数据，^_^，很方便吧
echo '';
echo '';
echo '';
foreach ($result as $v) {
 echo "";
}
echo '';
echo '
华强电子网资讯
ID
Title
Author
Source
Date
{$v['id']}
{$v['title']}
{$v['author']}
{$v['source']}
{$v['date']}
'.$page->fpage().'
';
?>

The data connected in article.php is the information data captured from Huaqiang Electronics Network in the previous article, because the data is relatively large. The article.sql file will be attached to the code package download for everyone to test.

The data displayed on the static page index.html is the echo code in the article.php file.

The config.inc.php file in the code file mainly defines some constants, such as: database user name, database password, host..., database connection class library (Db.class.php) and database operation class Library (Model.class.php), please refer to the article http://www.jb51.net/article/82063.htm, with usage instructions.

Program renderings:

The following figure marks the places to pay attention to.

In this way, Ajax paging without refresh is completed. There is also an ajaxPage.class.php in the program that is not explained. In fact, the usage of this ajaxPage class library is the same as that of the general paging class library.

That is:

$page = new ajaxPage(记录总数, 每页显示数);

Simple implementation of Ajax no refresh paging effect

php ajax no refresh Pagination, support id positioning example code

JQuery+Ajax no refresh paging example code

The above is the detailed content of PHP and Ajax implement code sharing for non-refresh paging function. For more information, please follow other related articles on the PHP Chinese website!