$.ajax({
type: ‘POST’,
url: ‘http://www.yourwebsite.com’,
beforeSend: function (XMLHttpRequest) {
XMLHttpRequest.setRequestHeader(“request_type”,”ajax”);
},
data: ‘test=test’,
success: function(rs) {
alert(‘ok’);
}
}
});
PHP代码：
echo isset($_SERVER['HTTP_REQUEST_TYPE']) && $_SERVER['HTTP_REQUEST_TYPE']
== "ajax" ? "it is ajax" : "it is NOT ajax.";
还有一种方法，js里面不用加beforeSend里面的代码，直接在PHP里面作判断：
echo isset($_SERVER['HTTP_X_REQUESTED_WITH']) && $_SERVER['HTTP_X_REQUESTED_WITH']
==='XMLHttpRequest' ?'it is ajax' : 'it is NOT ajax';
PS：判断是否是Flash提交数据
echo isset($_SERVER['HTTP_USER_AGENT']) && (stripos($_SERVER['HTTP_USER_AGENT'],'Shockwave')!==false
|| stripos($_SERVER['HTTP_USER_AGENT'],'Flash')!==false) ? echo 'it is flash data':'it is not flash data';
)
