Question

So I have a really simple form on a website that’s entirely AJAX based for loading its pages. The only way for this form to work would be for it to do some AJAX magic as well, so I set about doing it. I had the form tested so I knew it all worked.

Here’s the javascript for my form.
The variable “fullpath” just tells me what page is loaded at the moment, all of the pages are stored in the local “pages” directory.
It serializes the form and sends it to the server, with some debugging alerts.

$(document).ready(function() {
$("#regForm").submit(function(event) {
    alert($(this).serialize());
        $.post("pages/" + fullpath, $(this).serialize(), function(data){
            alert(data);                      
        });
        return false;
  });
});

Here’s the form itself

<form name="input" id="regForm">
<div class="form-field"><label>Username</label> <input type="text" name="username"/></div>
<div class="form-field"><label>Password</label> <input type="password" name="password"/></div>
<div class="form-field"><label>Confirm Password</label> <input type="password"  name="password2"/></div>
<div class="form-field"><label>Screen Name</label> <input type="text" name="screenname"/></div>
<div class="form-field"><label>Email Address</label> <input type="text" name="address"/></div>
<div class="form-field"><label>Group</label> <select name="usergroup"> 
<option value="0">Superuser</option>
<option value="1">Admin</option>
<option value="2">Moderator</option>
<option value="3">Advmember</option>
<option value="4">Member</option>
<option value="5">Guest</option>
</select> <br />
<label>Submit: </label><input type="submit" value="Submit" />
</div>
</form>

And here’s some PHP I put at the beginning of the page

print_r($_POST);

So I fill the form with some bogus info, and I press submit. All of the data is displayed with the

alert($(this).serialize());

And then the call is successful and I see the loaded form with my

alert(data);

But, where I ask to print the $_POST array in PHP, this is all I get

Array ()

So jQuery is sending the data, it’s getting the page back, but for some reason the POST variables aren’t going through. Anyone care to lend a hand?

Answer 1

This works in a Fiddle.

Are you sure that fullpath is defined globally ? I don’t see any other possible source of errors in your code.

Edit: I can see the actual problem from your comments: 301 redirects don’t work through POST:

If the 301 status code is received in response to a request other than GET or HEAD, the user agent MUST NOT automatically redirect the request unless it can be confirmed by the user, since this might change the conditions under which the request was issued.

You need remove this redirect thing, so "pages/" + fullpath directly points to the PHP script. This could also be a problem with your server configuration.

In case of Apache, you might also want to have a look at this SO question.