[英]How to test if my XMLHttpRequest worked?
(sorry for the bad english) (对不起,英语不好)
I'm a beginner in js and php I would like to know how to test if my POST request worked, 我是js和php的初学者,我想知道如何测试POST请求是否有效,
The code which send the request : 发送请求的代码:
var nom2 = document.getElementById('nom2').value;
var data2 = document.getElementById('image_upload').value;
returnValue = "nom2="+nom2+"&data2="+data2;
var requete = createXmlHttpRequestObject();
requete.open('POST', "photo2.php", true);
requete.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
requete.send(returnValue);
And the code to test if my request worked 和测试我的请求是否有效的代码
if (isset($_POST['nom2']) && isset($_POST['data2']))
{
echo"<script type='text/javascript'> message(); </script>";
}
The problem is that nothing is writed into the console log, and when i try to echo nothing is writed too. 问题是没有任何内容写入控制台日志,并且当我尝试回显任何内容时也没有写入。 Need some help please ! 请需要帮助!
Thanks ! 谢谢 !
You have to create a callback. 您必须创建一个回调。 This is a function that is called when the browser finished your request. 当浏览器完成您的请求时,将调用此函数。
var nom2 = document.getElementById('nom2').value;
var data2 = document.getElementById('image_upload').value;
var parameters = "nom2="+nom2+"&data2="+data2;
var http = new XMLHttpRequest();
http.open("POST", "photo2.php", true);
//Send the proper header information along with the request
http.setRequestHeader("Content-type", "application/x-www-form-urlencoded");
http.onreadystatechange = function() {//Call a function when the state changes.
if(http.readyState == 4 && http.status == 200) {
console.log(http.responseText); // <= Here your browser prints the response that came from the php echo to the browser console
}
}
http.send(parameters);
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