如何通过POST传递Javascript变量，然后重定向到新页面？

Question

I have a JavaScript variable, and I want to send via POST to a PHP page and I want to display the new page. I tried this solution, but it seems not work. I have checked within Wireshark, and the variable (key and value) are sent correctly, but the page, doesn't show anything.

$(document).ready(function() {
            $("#tbID tr").click(function() {
                $(this).addClass('selected').siblings().removeClass('selected');
                var value = $(this).find('td:nth-child(2)').html();

            });

        });
        function send(value) {
            $.post("newPhp.php", {
                key : value

            }).done(function(data) {
                location.href="newPhp.php";
            });
        }

The newPhp.php:`

    if(!empty($_POST["key"])){
        $value  = $_POST['key'];`
//something with $value
}

So what is the problem with this code ? Are there any simpler solution ?

Answer 1

function send(value) {
    $.post( "newPhp.php",
        {key:value},
        function( data ) {
            location.href="newPhp.php";
        }
    );
}