如何在PHP中打印javascript变量？ [重复]

Possible Duplicate:
how to put javascript variable in php echo

I have JavaScript to get time and the code is below.

<script type="text/javascript">

var d = new Date();

var H = d.getHours();
var m = d.getMinutes();
if(H>11)
{
    var h = H-12;
    var a = 'PM';
}
else
{
    var h = H;
    var a = 'AM';
}

</script>

Now, I want to print the variables in PHP that used in JavaScript like,

<?php echo $h.$m; ?>

Is it possible?

if yes then help me.

Javascipt runs on the client, php runs on the server... If you just want to print the var in the browser

var varName = "varValue";
document.write(varName);

if you need to send the javascript var to php, you need to send it to the server with jquery or javscript and then return the data...

$.post("yourFile.php", { varName: "varValue" },
function(data) {
   //print the data coming from yourFile.php
   document.write(data);

});

if you only need to send the var to the server

 $.post("yourFile.php", { hour: "hour", min: "min", sec:"sec" } );