<?php
if(isset($_GET['do']) && $_GET['do']==='ajax')
{
exit("{msg:'Hello World!'}");
}
?>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title>Ajax Demo</title>
<script type="text/javascript">
function readyStateChangeHandle(xhr)
{
// 具体操作,需要了解一下JavaScript的相关知识
eval('var result='+xhr.responseText);
window.alert(result.msg);
}
function Ajax()
{
// 创建异步请求对象
var xhr=window.ActiveXObject ? new ActiveXObject("Microsoft.XMLHTTP") : new XMLHttpRequest();
// 判断一下对象是否创建成功
if(!xhr)
{
return false;
}
// 设置异步请求处理函数(这里用匿名函数而不直接用定义好的函数,主要是方便传递参数)
xhr.onreadystatechange=function(){
// readyState有4种状态(0=UNINITIALIZED,1=LOADING,2=LOADED,3=INTERACTIVE,4=COMPLETED)
if(xhr.readyState==4)
{
// status实际上就是HTTP状态码
if(xhr.status==200)
{
readyStateChangeHandle(xhr);
}
}
};
xhr.open("GET","ajax.php?do=ajax",true);
xhr.send(null);
}
</script>
</head>
<body>
<button type="button" onclick="Ajax();">Ajax</button>
</body>
</html>
log into file
//
ob_start();
echo "<pre>";
print_r($data);
echo "</pre>";
$a=ob_get_contents();
//DAL::remove("insert into mytest(vvv) values('$a')");
$filename = "file.txt";
$file = fopen($filename, "w") ......
