Javascript 使用ajax将表单数据发送到php

Javascript 使用ajax将表单数据发送到php,javascript,jquery,ajax,html,Javascript,Jquery,Ajax,Html,我想将表单数据从ajax发送到php。我的ajax检索表单数据,但它不发送表单数据。我看不出代码有任何问题。也许我需要更专业的帮助。提前谢谢 HTML5语法 <div align="center"><a id="hi">Header</a></div> <a id="signup" data-add-back-btn="true" style="float:right;" data-icon="arrow-r">Sign- In<

我想将表单数据从ajax发送到php。我的ajax检索表单数据,但它不发送表单数据。我看不出代码有任何问题。也许我需要更专业的帮助。提前谢谢

HTML5语法

<div align="center"><a id="hi">Header</a></div>
<a id="signup" data-add-back-btn="true" style="float:right;" data-icon="arrow-r">Sign- In</a>
</div>

<form class="check-user" action="php/sup.php" method="POST">
        <label>Username</label>
        <input id="Susername" name="username" placeholder="username" type="text" >
    </div>
    <div align="center" data-role="fieldcontain" style="width:100%;overflow:hidden" data-position="static">
        <label>Email</label>
        <input id="Semail" name="email" placeholder="email" type="email" >
    </div>
    <div align="center" data-role="fieldcontain" style="width:100%;overflow:hidden" data-position="static">
        <label>Password</label>
        <input id="Spassword" name="password" placeholder="password" type="password" >
    </div>
    <!---input type="submit" style="visibility:hidden;" id="send"/-->
    </form>
PHP语法

session_start();
$name =  $_POST['username'];
$email =  $_POST['email'];
$password =  $_POST['password'];


if(isset($name) && isset($email) && isset($password))
 {

        echo $name;
        $_SESSION['username'] = $name;

  }
 else
 {
die('data not set');
 }

您可以在表单上使用serialize方法,它将正确地收集所有内容

$('#signup').live('click', function(){

   var that = $('form.check-user'),
   urls = that.attr('action'),
   methods = that.attr('method'),
   data = that.serialize();


   $.ajax(
{
    url: urls,
    type: methods,
    data : data,
    beforeSend: function(response){alert('Sending');},
    success: function(response){ alert('success');},
    error: function(response){alert('failed');},
    complete: function(response){alert('finished');},
}
);
   return false;
   });
试试这个

$('#signup').live('click', function(){

$.ajax({
            url:’’,//url to submit
            type: "post",
            dataType : 'json',
            data : {
                'Susername' : $('#Susername').val(),
                'Semail' : $('#Semail').val(),
                'Spassword' : $('#Spassword').val()
            },
            success: function (data)
            {

            }
        });

return false;
   });

我解决了它在php端的工作方式,您可以这样做吗

$name =  isset(json_decode($_POST['username']));//htmlentities($values[0]);
$email =  isset(json_decode(($_POST['email'])));//htmlentities($values[1]);
$password =  isset(json_decode($_POST['password']));//htmlentities($values[2]);
阿贾克斯方面

$(document).ready(function(e) {

   $('#signup').live('click', function(){
       //var name = document.getElementById('Susername').value;
       //var email = document.getElementById('Semail').value;
       //var pass = document.getElementById('Spassword').value;
       var that = $('form.check-user'),
       urls = that.attr('action'),
       methods = that.attr('method'),
       data = {};
      data = that.serialize();
        console.log(data);


       $.ajax(
    {
        url: urls,
        type: methods,
        dataType:'json',
        data : data,
        beforeSend: function(response){$.mobile.showPageLoadingMsg(true);},
        success: function(response){ $.mobile.showPageLoadingMsg(false);},
        error: function(xhr, textStatus, errorThrown){alert(textStatus);},
        complete: function(response){},
    }
    );
       return false;
       });

}))

注册元素在哪里?您对
.live()
的调用似乎与任何内容都不匹配,因此在
.ajax()
调用中使用的值从未填充过,也从未调用过。(另外,你不应该使用
.live()
,而应该使用
.on()
)@David Hm,这是一件显而易见的事情。我相信“忘记添加要单击的内容”不是错误。不管怎样,请检查您的元素和选择器要单击的元素是我的原始语法,我只是取了这一小段以便您理解,但是#注册是有效的,我将尝试重新定义
元素的原因:
元素=that.val()?这到底应该做什么?很抱歉,语法不起作用,它显示发送,然后什么也没有发生。您会得到哪个警报?您还尝试过
var\u dump($\u POST)
为了确保您在PHP文件中接收到数据,它将显示在Chrome中的网络选项卡中。还要尝试使用console.log()在javascript中获取所有正确的值;我的值出现在chrome控制台中,但网络表示它在sup.php上的挂起状态似乎php没有接收到数据。是吗?我试过了,但我的php文件似乎没有接收到我的数据。因为在chrome控制台中,它显示挂起时间很长
$(document).ready(function(e) {

   $('#signup').live('click', function(){
       //var name = document.getElementById('Susername').value;
       //var email = document.getElementById('Semail').value;
       //var pass = document.getElementById('Spassword').value;
       var that = $('form.check-user'),
       urls = that.attr('action'),
       methods = that.attr('method'),
       data = {};
      data = that.serialize();
        console.log(data);


       $.ajax(
    {
        url: urls,
        type: methods,
        dataType:'json',
        data : data,
        beforeSend: function(response){$.mobile.showPageLoadingMsg(true);},
        success: function(response){ $.mobile.showPageLoadingMsg(false);},
        error: function(xhr, textStatus, errorThrown){alert(textStatus);},
        complete: function(response){},
    }
    );
       return false;
       });