where to place cookies in PHP code example

Example 1: php cookie

setcookie ('name', 'value', $expiresOn, $path, $domain, $secure, $httponly)

Example 2: cookies php syntax

setcookie("cookie_name", "type_on_cookie", expiry_time(), "/");

Example 3: 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