php Ajax paging simple application example_PHP tutorial

This article uses Ajax paging to briefly describe how to use php and ajax to implement data non-refresh paging function. Friends in need can refer to it.

Simple mysql data table structure

The code is as follows

代码如下	复制代码
CREATE TABLE messages ( msg_id INT PRIMARY KEY AUTO_INCREMENT, message VARCHAR(150) );

Copy code

CREATE TABLE messages
(
msg_id INT PRIMARY KEY AUTO_INCREMENT,
message VARCHAR(150)
);

代码如下	复制代码

JavaScript code

代码如下

复制代码

if($_POST['page']) { $page = $_POST['page']; $cur_page = $page; $page -= 1; $per_page = 15; // Per page records $previous_btn = true; $next_btn = true; $first_btn = true; $last_btn = true; $start = $page * $per_page; include"db.php"; $query_pag_data = "SELECT msg_id,message from messages LIMIT $start, $per_page"; $result_pag_data = mysql_query($query_pag_data) or die('MySql Error' . mysql_error()); $msg = ""; while ($row = mysql_fetch_array($result_pag_data)) { $htmlmsg=htmlentities($row['message']); //HTML entries filter $msg .= " " . $row['msg_id'] . " " . $htmlmsg . " "; } $msg = " " . $msg . " "; // Content for Data /* -----Total count--- */ $query_pag_num = "SELECT COUNT(*) AS count FROM messages"; // Total records $result_pag_num = mysql_query($query_pag_num); $row = mysql_fetch_array($result_pag_num); $count = $row['count']; $no_of_paginations = ceil($count / $per_page); /* -----Calculating the starting and endign values for the loop----- */ //Some Code. Available in download script } ?>

Here is the front-end processing of ajax using jquery

The code is as follows

Copy code

load_data.php Here is to get the data sent by ajax and then query mysql through php to return the information

The code is as follows

Copy code

if($_POST['page']) { $page = $_POST['page']; $cur_page = $page; $page -= 1; $per_page = 15; // Per page records $previous_btn = true; $next_btn = true; $first_btn = true; $last_btn = true; $start = $page * $per_page; include"db.php"; $query_pag_data = "SELECT msg_id,message from messages LIMIT $start, $per_page"; $result_pag_data = mysql_query($query_pag_data) or die('MySql Error' . mysql_error()); $msg = ""; while ($row = mysql_fetch_array($result_pag_data)) { $htmlmsg=htmlentities($row['message']); //HTML entries filter $msg .= " " . $row['msg_id'] . " " . $htmlmsg . " "; } $msg = " " . $msg . " "; // Content for Data /* -----Total count--- */ $query_pag_num = "SELECT COUNT(*) AS count FROM messages"; // Total records $result_pag_num = mysql_query($query_pag_num); $row = mysql_fetch_array($result_pag_num); $count = $row['count']; $no_of_paginations = ceil($count / $per_page); /* -----Calculating the starting and endign values ​​for the loop----- */ //Some Code. Available in download script } ?> http://www.bkjia.com/PHPjc/633092.htmlwww.bkjia.comtruehttp: //www.bkjia.com/PHPjc/633092.htmlTechArticleThis article uses Ajax paging to briefly describe how to use php and ajax to implement data non-refresh paging function. If necessary Friends can refer to it. The simple mysql data table structure code is as follows...