php - XMLHttprequest sends an empty post - Stack Overflow

I'm using the following code to send a request:var ajaxHandler = new XMLHttpRequest();ajaxHandler.

I'm using the following code to send a request:

var ajaxHandler = new XMLHttpRequest();

ajaxHandler.onreadystatechange = function()
{
   if(ajaxHandler.readyState == 4)
   {
      console.log(ajaxHandler.responseText);
   }
}

ajaxHandler.open("POST", "filterCards", true);
ajaxHandler.send("category="+category+"&tag="+tag);

On the PHP side, I have this:

var_dump($_POST);

However, even though both the variables of category and tag have values, the console logs an empty array. What am I doing wrong with the post?

I'm using the following code to send a request:

var ajaxHandler = new XMLHttpRequest();

ajaxHandler.onreadystatechange = function()
{
   if(ajaxHandler.readyState == 4)
   {
      console.log(ajaxHandler.responseText);
   }
}

ajaxHandler.open("POST", "filterCards", true);
ajaxHandler.send("category="+category+"&tag="+tag);

On the PHP side, I have this:

var_dump($_POST);

However, even though both the variables of category and tag have values, the console logs an empty array. What am I doing wrong with the post?

Share Improve this question asked Apr 19, 2012 at 5:07 FibericonFibericon 5,80313 gold badges39 silver badges65 bronze badges
Add a ment  | 

2 Answers 2

Reset to default 6

Add setRequestHeader before your send call:

ajaxHandler.setRequestHeader("Content-type","application/x-www-form-urlencoded");
ajaxHandler.send("category="+category+"&tag="+tag);

Replace:

   if(ajaxHandler.readyState == 4)
   {
      console.log(ajaxHandler.responseText);
   }

with

   if(ajaxHandler.readyState == 4 && ajaxHandler.status==200)
   {
      console.log(ajaxHandler.responseText);
   }

Hope this helps.

The answer by web-nomad is correct, but if you are still receiving an empty array, recall whether you are hiding file extensions in your server configuration. If you are, then a request to "file.extension" will be redirected to "file", and the POST data is lost.

This is a small error to make, but also easy to overlook. It is easy to assume the error is in the code rather than in the URL, particularly as the array is returned at all - so one might think the URL is correct.

发布者:admin,转转请注明出处:http://www.yc00.com/questions/1743974355a4538463.html

相关推荐

  • php - XMLHttprequest sends an empty post - Stack Overflow

    I'm using the following code to send a request:var ajaxHandler = new XMLHttpRequest();ajaxHandler.

    9天前
    10

发表回复

评论列表(0条)

  • 暂无评论

联系我们

400-800-8888

在线咨询: QQ交谈

邮件:admin@example.com

工作时间:周一至周五,9:30-18:30,节假日休息

关注微信