求助：Ajax根本不发送数据

我正在处理一个脚本，该脚本会将使用GET存储的一些数据发送到PHP脚本（先处理然后将其放入数据库中）。

这是ajax脚本（已经包含了最新的jQuery脚本）：

function send(){
  $.ajax({
     type: "GET",
     url: "http://examplewebsite.com/vars/parse.php",
     data: "id=" + id + "&purl=" + purl + "&send" + "true",
     cache: false,
     success: function(){
       alert("Sent");

     }
  });
}

id 和 purl 是JavaScript变量。

send() 函数设置为：

<a href="#" onclick="send()">Send</a>

PHP 代码：

<?php

//Connect to database
include ("config.php");

//Get the values
$id = $_GET['id'];
$purl = $_GET['purl'];
$send = $_GET['send'];

if ($send == 'true') {


    $insertdata = "INSERT INTO data (id,purl,send) VALUES ('$id','$purl',+1)";
    mysql_query($insertdata) or die(mysql_error());
} else {
    //do nothing
}
?>

当我键入http://examplewebsite.com/vars/parse.php?id=123&purl=example&send=true 时它可以正常工作，php会根据需要将数据注入数据库中。但是当我使用send()并想使用ajax发送数据时，失败了。

我犯了什么错误？

It depends where you are running your script, because ajax calls are not meant to work on other domains. If you need to run the js on http://example1.com and the call to go to http://example2.com you need another approach.

An idea is to use json

Try

data: { id: id, purl: purl, send: true }

See if that makes any difference

missing "=" in the data string.

 data: "id=" + id + "&purl=" + purl + "&send" + "true",

should be

 data: "id=" + id + "&purl=" + purl + "&send=" + "true",

You're missing the = after send,

function send(){

  $.ajax({
     type: "GET",
     url: "http://examplewebsite.com/vars/parse.php",
     data: "id=" + id + "&purl=" + purl + "&send=" + "true",
     cache: false,
     success: function(){
       alert("Sent");

     }
  });
}

should fix it, also. post more information about your javascript. We just have to assume id and purl are filled out. Did you try debugging them (if this doesn't work).

Also, debug the URL that is requested, you can use firefox or chrome dev-tools for this. What url is being send to the PHP page and is it correct

First, i suggest (if you use Chrome or Safari) to use the Web Inspector (Right Click anywhere - inspect element) and then press ESC to show to console, this will assist you in validating your JS code. That would show you you have a '=' missing.

Second, i would try something a bit more simple just to make sure you get to the file.

JS:

// Don't forget encoding the data before sending, this is just a simple example
$.get("parse.php?sent=true",
     function(data){
         alert("I think i got a nibble...");
         alert(data);
     }
);

On the php file :

$sent = (isset($_GET['sent']) && !empty($_GET['sent']))?$sent:false;

if($sent) echo 'whatever data you want back';

Just make sure that you actually get the alert, and if so , move on from there to build the PHP file as needed for your data.

Hope this assists, Shai.