Question

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Passing javascript variable to PHP function

rated 0 times [ 1] [ 2] / answers: 1 / hits: 17247 / 12 Years ago, tue, april 10, 2012, 12:00:00

I have this javascript code

<Script>

    function getGroupId(){

        var group=document.getElementById(selectedOptions).value;

        var groupFirstLetter=group.substring(2);



    }

</Script>

I need to pass the groupFirstLetter to a PHP function which will count how many users in this group and return the value to the javascript function.

Any ideas please?

Thanks,

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ashelye

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1 Year ago

answered 12 Years ago jenamackennac · Accepted Answer

You can use jQuery for that to post an AJAX request. See this example taken out of jQuery documentation:

$.ajax({

  type: POST,

  url: some.php,

  data: {groupFirstLetter:groupFirstLetter},

  complete: function(data){

            //data contains the response from the php file.

            //u can pass it here to the javascript function

        }

});

The variable will be available in your PHP code as $_POST['groupFirstLetter'].
You can manipulate it as you wish then echo a response to the browser again and it will be available in the data variable.
references:

jQuery AJAX