php入门-cookie

//设置cookie
setcookie("cookieKey","李四",time()+3600);
//setcookie("cookieKey","李四",time()+10,"/","localhost");

//获取cookie
//echo $_COOKIE["cookieKey"];

//删除cookie
//当设置值为空时,http头有句 cookieKey=deleted;,cookie消失
setcookie("cookieKey","");
//setcookie("cookieKey","xxxxx",date()-3600);