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php implements ajax reception
Ajax interface:
First of all, understand the essence, which is that a normal submission sends a request without refreshing and gets a response, and then performs the behavior according to the situation you need
.
<!DOCTYPE html>
<html>
<head>
<script>
function loadXMLDoc()
{
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("GET","send.php?name=sunzhiyan",true);
xmlhttp.send();
}
</script>
</head>
<body> <div id="myDiv"><h2>Let AJAX change this text</h2></div>
<button type="button" onclick="loadXMLDoc()">Change Content</button> </body>
</html>PHP interface:
Note here that if it is passed through the get method, it must be passed through the $_GET method to accept the value, otherwise $_POST
<?php
if($_GET['name'] == sunzhiyan){
echo 'this is right';
}else{
echo 'this is error';
}
?>This is a simple Ajax application that can achieve Ajax verification.
Recommended tutorial: "PHP Tutorial"
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