Ajax帖子显示的消息不足 [英] Ajax post displaying an inadequate message

问题描述

我是AJAX方法的新手.我想发布一些由php页面处理的信息，将其称为page.php

I am new to AJAX methods. I want to post some infos that are processes by a php page, call it page.php

在我的html页面中，我输入了以下代码:

In my html page, I have put this code :

<script type="text/javascript" charset="utf-8">
//I have put the function getXMLHttpRequest() on a separate js file
function getXMLHttpRequest() {
    var xhr = null;

    if (window.XMLHttpRequest || window.ActiveXObject) {
        if (window.ActiveXObject) {
            try {
                xhr = new ActiveXObject("Msxml2.XMLHTTP");
            } catch(e) {
                xhr = new ActiveXObject("Microsoft.XMLHTTP");
            }
        } else {
            xhr = new XMLHttpRequest(); 
        }
    } else {
        alert("Votre navigateur ne supporte pas l'objet XMLHTTPRequest...");
        return null;
    }

    return xhr;
}

function request(callback) {
    var xhr = getXMLHttpRequest();

    xhr.onreadystatechange = function() {
        if (xhr.readyState == 4 && (xhr.status == 200 || xhr.status == 0)) {
            callback(xhr.responseText);
        }
    };

    xhr.open("POST", "page.php", true);
    xhr.setRequestHeader("Content-Type", "application/x-www-form-urlencoded");
    xhr.send("name=proposition");
}

function postData(Data) {

    alert(Data);

}
</script>

<button onclick="request(postData);">...</button>

在page.php中，我有一个方法

In page.php, I have a method

protected function comment(){
//some code processing the posted infos (that works fine)...

//to debug, I have put a
echo('Hello world');

}

事实是，我没有收到任何"Hello world"消息，而是一条巨大的警报消息，其中显示了我所有的网页代码.

The fact is I don't get any 'Hello world' but a huge alert message with all my webpage code displayed.

有人有想法吗?

最好， 纽本

推荐答案

您正在page.php中定义一个函数，但永远不要调用它. 并删除受保护的关键字，因为它没有意义(您不是在上课)

You are defining a function in page.php, but never calling it. And remove the protected keyword because it doesn't make sense (you are not making a class)

尝试

function comment(){
//some code processing the posted infos (that works fine)...

//to debug, I have put a
echo('Hello world');

}

comment();

这篇关于Ajax帖子显示的消息不足的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！