PHP7创建COOKIE和销毁COOKIE的实例方法

setcookie ( string $name [, string $value = "" [, int $expire = 0 [, string $path = "" [, string $domain = "96.." [, bool $secure = false [, bool $httponly = false ]]]]]] ) : bool

setcookie("TestCookie", $value, time()-3600);

echo $_COOKIE["TestCookie"];

<?php
//将过期时间设为一小时前
setcookie("TestCookie", "", time() - 3600);
setcookie("TestCookie", "", time() - 3600, "/~rasmus/", ".utoronto.ca", 1);
?>