jQuery .post multiple callback

[ggalan]

im using jQuery's post for some ajax calls and get a callback from my php file using echo then in jQuery data to represent that echo.
question: how can i have multiple variables from php to jQuery?
do i need to make an array to json file?

jQuery:

$('.myClass').click(function() {
	var itm = $(this).find('textarea[class=typeItem]');
	var txt = $(this).find('textarea[class=typeTxt]');
	
	$.post( 'action.php', {itemType:itm, entryItm:txt}, function(data, otherData, moreData){
		$('ul#mylist).append("<li class='default'>'" + txt + " " + data + otherData + moreData +"'</li>");
		
	});
}

php:

<?php
$type = $_POST['itemType'];
$nTitle = $_POST['entryItm'];

// some code

echo var1; // data
echo var2; // otherData
echo var3; // moreData

?>

[ggalan]

from jQuerys site

js:

function clicked() {
	$.post("mainProcess.php", { "func": "getNameAndTime" }, function(data){
		$('div.container').append(data.name + ' ' + data.time);
	}, "json");	
}
$('#btn').click(function(){
	clicked();
});

php:

$n = 'john';
$t = '3pm';
echo json_encode(array("name"=>"$n","time"=>"$t"));