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PHP Ajax Double Dropdown List Download Script

Two related drop down list by using Ajax & PHP

Please read the basic drop down list box control tutorial. We will try to develop similar functionality by using Ajax (asynchronous JavaScript and XML) and PHP. The biggest advantage of using Ajax here is we need not reload the page again. With more form components ( if already filled by visitor ) we have to re-fill all the data once the page reloads. Now without sending all the information back to server we can send only cat_id of selected first category and then we will manage the second list based on cat_id value.

The detail tutorial on how to start with Ajax or how it works along with PHP is not explained here. This demo script you can download the sample code along with table structures data at the end of this file in zip format.

You can see the demo here and check the other related articles on this related drop down list at the end of this page.

We have used one server side script written in PHP. You can see the code of this file in your zip file

Demo of two dropdown list using Ajax & PHP

New script with multiple selection drop down list box is used. This part is added in your zip file.

Demo with multiple selection dropdown list

Three drop down list using Ajax

download script

Number of User Comments : 3

after selecting item from combobox i.e category, population of data in second combobox is not working. im getting empty small box.

any help would be appreciated.
Yusrizal Siregar22-11-2013
I'm not using 2 option, but 1 option and 1 textarea, need editing on dd.php and main.php. Work well

Nice share!
I've struggled to integrate this into my website for days - - can someone help me? I believe this works, but just can't get it through my thick skull... Thanks for everything!
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