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php 获取 xmlhttp.send,ajax - xmlhttprequest send json在php端接受数据的问题

var uinfo = {};

var uname = document.getElementById('uname');

var upwd = document.getElementById('upwd');

uinfo['uname'] = uname.value;

uinfo['upwd'] = upwd.value;

var usent = JSON.stringify(uinfo);

var xhr = null;

if(window.XMLHttpRequest){

xhr = new XMLHttpRequest();

}else{

xhr = ActiveXObject('Microsoft.XMLHttp');

}

xhr.open("POST", "/controler/login.php",true);

//etc

xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

xhr.send(usent);

然后php端怎么接受js发送的数据呢?

$_POST['']

拿不到数据,这部分的格式具体是要指定呢,求大神指导下~~

多谢~!

回复内容:

var uinfo = {};

var uname = document.getElementById('uname');

var upwd = document.getElementById('upwd');

uinfo['uname'] = uname.value;

uinfo['upwd'] = upwd.value;

var usent = JSON.stringify(uinfo);

var xhr = null;

if(window.XMLHttpRequest){

xhr = new XMLHttpRequest();

}else{

xhr = ActiveXObject('Microsoft.XMLHttp');

}

xhr.open("POST", "/controler/login.php",true);

//etc

xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");

xhr.send(usent);

然后php端怎么接受js发送的数据呢?

$_POST['']

拿不到数据,这部分的格式具体是要指定呢,求大神指导下~~

多谢~!

答案太弱了...

xhr.send('json='+usent);

你可以用file_get_contents(‘php://input’);尝试打印看看是什么,可以去看看这一篇文章

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