You can call the setcookie() function at any location in your Web page. code example
Example 1: setcookie php
setcookie($cookiename, $cookievalue, time() + (86400 * 30), "/"); // 86400 = 1 day
Example 2: php page sends cookie to visitor
<?php $Month = 2592000 + time();//this adds 30 days to the current timesetcookie(UserVisit, date("F jS - g:i a"), $M