POST后使用.ajax（）获取表单数据

Question

After submitting a form via ajax, I want to get the data that I passed into the form and put it in a JS variable.

<form>
<input type="text" />
<input type="submit" value="Submit" />
</form>
$("#form").submit(function(event) {
    var form = $(this);
    $.ajax({
           type: 'POST',
           url: form.attr('action'),
           data: form.serialize(),
           success: function(data) {
               alert(data); 
           }
         });

    event.preventDefault(); // avoid to execute the actual submit of the form.
});

So how do I get the data (eg what the person posted into input) processed via POST and put it in a JS variable? NOTE: I do NOT want to get the input via input.val(), It MUST be the data submitted into the databse.

Answer 1

In your server side code you will receive the posted data in $_POST variable.So if you want to receive it back in the response then simply post it back to the ajax request.

Try

echo json_encode($_POST);

And also change the dataType of your ajax like this

dataType : 'json'

And in your ajax success try console.log(data) to see the response and check your browser console