将行添加到MySQL数据库并使用jQuery显示DIV，而无需刷新页面

Question

I am using some PHP script to add some data from a complex form to MySQL db and then showing it all in some HTML table. Everything works just fine, but I would like to 'upgrade' my script with jQuery and (I suppose) AJAX.

What I would like to do is when user submits data, the row (or <div> ) shows up in the HTML table without refreshing a page. Form and table are on same page, of course...

Some guidelines would be really helpful because I'm not sure should I even use AJAX or something else for my needs. Links for some tutorials will be also great :)

Thanks a lot for any help!

Answer 1

An easy way to do this is using jQuery POST method

http://api.jquery.com/jQuery.post/

When the user submits the data, you use jQuery to post the data to a PHP handler, which saves the data to the database and returns a HTML formatted row to add to your table.

Here's a good example: http://www.jensbits.com/2009/10/04/jquery-ajax-and-jquery-post-form-submit-examples-with-php/comment-page-1/

Answer 2

I had used this tutorial to implement a comment system on one of my projects. It uses ajax and works really well. I believe that this is what you need.

Answer 3

You'll need:

• A php page where to submit the form. Ideally this page will return the result as a JSON object (PHP has some handy JSON functions to convert PHP arrays and objects directly to a proper JSON string). Don't forget to include some error information in the JSON object you return. This can have the form:

  { "errorCode": 0, "result": { "var1": value1, "var2": value2 } }

• Some javascript to submit the form. This can be done nicely with jQuery.ajax , jQuery.post or jQuery.get functions.

• Some javascript to handle the result from the PHP script. This will be a callback function that you give to the jQuery.ajax , jQuery.post or jQuery.get functions. This script will either:

  • display the errors to the user (you can set some text in a div for example using jQuery("#error").html("My error message"); )
  • Insert the row in your table. You can build HTML elements dynamically using jQuery.append and jQuery.html functions.