Example of real time refresh display data implemented by php+jQuery ajax
- 2021-12-21 04:16:17
- OfStack
This paper describes the real-time refresh display data function realized by php + jQuery ajax. Share it for your reference, as follows:
Create a data table: demo
--
-- Structure of the table `demo`
--
CREATE TABLE IF NOT EXISTS `demo` (
`id` int(11) NOT NULL AUTO_INCREMENT,
`name` varchar(20) COLLATE utf8_bin NOT NULL,
PRIMARY KEY (`id`)
) ENGINE=InnoDB DEFAULT CHARSET=utf8 COLLATE=utf8_bin AUTO_INCREMENT=5 ;
--
-- Drop the data in the table `demo`
--
INSERT INTO `demo` (`id`, `name`) VALUES
(1, ' Lei Jun '),
(2, ' Pony Ma '),
(3, ' Li Yanhong '),
(4, ' Jack Ma ');
Server file: demo. php
<?php
$mysqli = new mysqli("localhost","root","","test");
$mysqli->set_charset('utf8');
$query = 'SELECT * FROM demo';
$result = $mysqli->query($query);
$arr = $result->fetch_all(MYSQLI_ASSOC);
$info = json_encode($arr);
echo $json = '{"success":true,"info":'.$info.'}';
Display data page: fresh. html
<html>
<head>
<meta charset='utf-8'>
<title>hello</title>
</head>
<body>
<script src="http://lib.sinaapp.com/js/jquery/1.9.1/jquery-1.9.1.min.js"></script>
<script>
function check(){
$.ajax({
type:"GET",
url:"./demo.php",
dataType:"json",
success:function(data){
if(data.success){
var count = data.info.length;
for(i=0;i<count;i++){
var dom = "<tr align='center' id='"+data.info[i].id+"'><td>"+data.info[i].id+"</td><td>"+data.info[i].name+"</td></tr>";
var tag = '#'+data.info[i].id;
if(!$(tag).length){
$("#info").append(dom);
}
}
}else{
alert('error');
}
},
error:function(res){
alert(res.status);
}
});
}
window.setInterval(check, 1000); // Execute per second 1 Times
</script>
<body>
<div style='width:600px;margin:0 auto;'>
<table border='1' width="600px">
<thead>
<tr><th>id</th><th>name</th></tr>
</thead>
<tbody id='info'>
<tr align='center' id='111'><td>111</td><td> Test </td></tr>
</tbody>
</table>
</div>
</body>
</html>
For more information about PHP, please see the topics of this site: "Summary of PHP+ajax Skills and Applications", "Summary of PHP Network Programming Skills", "Summary of php String (string) Usage", "Introduction Tutorial of php+mysql Database Operation" and "Summary of php Common Database Operation Skills"
I hope this article is helpful to everyone's PHP programming.