我正在尝试一个基本的 AJAX 调用，我将地址“www.google.com”发送到 urlpost.php 但当前代码似乎无法检测到响应(什么都没发生)。我试图查找错误，但我不知道哪里出错了。
提前谢谢大家!
免责声明:这是 Robin Nixon 的 Learning PHP, MySQL & Javascript 示例的变体
index.html
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8">
<title>Ajax Example</title>
</head>
<body>
<h1 align='center'>Loading a web page into a DIV</h1>
<div id='info' align='center'>This Sentence will be replaced </div>
<script>
request = new ajaxRequest()
request.open("POST", "urlpost.php", true) //also tried 'test/urlpost.php' (test is the folder of the file)
request.setRequestHeader("Content-type", "application/x-www-form-urlencoded")
request.setRequestHeader("Content-length", params.length)
request.setRequestHeader("Connection", "close")
request.send("url=www.google.com")
request.onreadystatechange = ajaxCallback
function ajaxCallback()
{
alert("Reponse received") //just letting me know I got a reponse
if(this.readyState==4) //ready
{
if (this.status==200) //no idea
{
if (this.responseText != null)
{
document.getElementById('info').innerHTML = this.responseText
}
else alert("AJAX ERROR: NO DATA RECEIVED")
}
else alert("Ajax error: "+this.statusText);
}
}
function ajaxRequest()
{
try //non IE browser
{
var request = new XMLHttpRequest();
}
catch(e1)
{
try // IE6+?
{
request = new ActiveXObject("Msxml2.XMLHTTP")
}
catch(e2)
{
try // IE5?
{
request = new ActiveXObject("Microsoft.XMLHTTP")
}
catch(e3) //No Ajax support
{
request = false
}
}
}
return request
}
</script>
urlpost.php
<?php
if (isset($_POST['url'])){
echo file_get_contents("http://".$_POST['url']);
}
?>
最佳答案
用jQuery重写，简单多了。
$(document).ready(function(){
$.ajax({
type: "post",
url: "urlpost.php",
data: "url=www.google.com",
success: function(msg){
$('#replace').html(msg);
}
});
return false;
});
关于php - 基本 AJAX 请求 Javascript/PHP 不工作，我们在Stack Overflow上找到一个类似的问题： https://stackoverflow.com/questions/11172760/