<?php ???function set_my_cookie($var, $value = ‘‘, $time = 0, $path = ‘‘, $domain = ‘‘) { ???????$_COOKIE[$var] = $value; ???????setcookie($var, $value, $time, $path, $domain); ???} ???// set_my_cookie(‘test‘, ‘ryan_test‘); ???// echo $_COOKIE[‘test‘]; ???if ($_SERVER[‘REQUEST_METHOD‘] == ‘POST‘) { ???????set_my_cookie(‘test1‘, ‘ryan_test1‘); ???} ???echo $_COOKIE[‘test1‘];?><!DOCTYPE html><html lang="en"><head> ???<meta charset="UTF-8"> ???<meta name="viewport" content="width=device-width, initial-scale=1.0"> ???<meta http-equiv="X-UA-Compatible" content="ie=edge"> ???<title>Cookie</title></head><body> ???<form action="" method=‘post‘> ???????<input type="submit" /> ???</form></body></html>让 PHP COOKIE 立即生效（不用刷新就可以使用）
原文地址：https://www.cnblogs.com/ryanzheng/p/9217184.html