How to return result of function?

How to return the result of a function in the same page using jQuery?

• This is simple but I don't seem able to make it happen in Codeigniter. Using simple php it should be: <form id="volume" method="post" action="<?php echo $PHP_SELF;?>"> <label>length(cm):</label> <input type="text" name="length"> <label>width(cm):</label> <input type="text" name="width"> <label>height(cm):</label> <input type="text" name="height"> <button type="submit">Submit</button> </form> <?php $length = $_POST["length"]; $width = $_POST["width"]; $height = $_POST["height"]; $variable = 5000; $sum_total = ($length * $width * $height) / $variable; printf ("%01.2f" , $sum_total); ?> kg I put the form in my view, the php in my controller but I want it to return the result in the same page instead of redirecting me. Thank you all in advance for your responses.

• Answer:

  Put jQuery similar to this on the page with your submit button. $(document).ready(function(){ $('#volume').submit(function(event){ event.preventDefault(); var post_array = { length: $('input[name=length]').val(); width: $('input[name=width]').val(); // etc }; $.post('path/to/controller/method', post_array, function(data){ alert(data); // do stuff; } return false; //to stop the form from submitting }); }); Put the PHP that calculates the result in 'path/to/controller/method' and have it return $result;. When a user clicks the submit button it will submit an ajax request to your new view and return the result to jQuery where you can then change the page or w/e you want to do.