PHP :: Textbox หลายตัว แล้วจะเขียนโค้ดยังงั้ยดี

<script src="http://code.jquery.com/jquery-latest.js"></script> 
<script type="text/javascript">
$(document).ready(function(){
    $("input:submit").click(function(){
        $("input[name='prices[]']").each(function(){
            alert($(this).val());
        });
    });      
});      
</script>

Price 1st:<input type='text' name='prices[]' /> <br />
Price 2nd:<input type='text' name='prices[]' /> <br />
Price 3rd:<input type='text' name='prices[]' /> <br />
<input type='submit' />