Simple example of php+ajax real-time refresh, phpajax real-time example

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Jul 13, 2016 am 10:06 AM

ajaxphprefresh

php+ajax real-time refresh simple instance, phpajax real-time instance

The example in this article describes the simple implementation method of php+ajax real-time refresh, and shares it with everyone for your reference. The details are as follows:

Ajax automatic refresh seems to be a very common problem. I was stuck on this when I was making a web chat room program. After this period of study, I finally made a code framework that can automatically refresh the web page. I hope it will be done soon. Confused friends, don’t take so many detours like me
Without further ado, here’s the code:

html part:

<html> 
<head> 
<script type="text/javascript"> 
function loadXMLDoc()//ajax发送请求并显示 
{ 
var xmlhttp; 
if (window.XMLHttpRequest) 
 {// code for IE7+, Firefox, Chrome, Opera, Safari 
 xmlhttp=new XMLHttpRequest(); 
 } 
else 
 {// code for IE6, IE5 
 xmlhttp=new ActiveXObject("Microsoft.XMLHTTP"); 
 } 
xmlhttp.onreadystatechange=function() 
 { 
 if (xmlhttp.readyState==4 && xmlhttp.status==200) 
  { 
  document.getElementById("myDiv").innerHTML=xmlhttp.responseText; 
  } 
 } 
xmlhttp.open("POST","/chat.php",true); 
xmlhttp.send(); 
setTimeout("loadXMLDoc()",1000);//递归调用 
} 
loadXMLDoc();//先执行一次 
</script> 
</head> 
<body> 
<button type="button" onclick="loadXMLDoc()">手动刷新</button> 
<div id="myDiv"></div> 
</body> 
</html>

php part (just a web page to test real-time refresh)

<&#63;php 
/* 
1.读取文件 
2.推送显示 
3. 
*/ 
echo file_get_contents("data.dat"); 
 
&#63;>

In this way, as long as data.dat is modified, it can be displayed on the web page in real time.

I hope this article will be helpful to everyone’s PHP programming design.

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