Session == 启动和存储Session -- ~~~ <?php session_start(); $_SESSION['views']=1; echo "Views=". $_SESSION['views']; ~~~~ Session计数器 ~~~~ <?php session_start(); if(isset($_SESSION['views'])){ $_SESSION['views']=$_SESSION['views']+1; } else { $_SESSION['views']=1; } ?> <meta charset="utf-8"> <?php echo "页面浏览量：". $_SESSION['views']; ~~~ Session存储位置和文件系统 -- echo session_id(); ~~ views|i:28;name|s:8:"Zhangsan"; ~~ i表示integer, 整型 s表示string, 字符串 终结和释放Session -- 释放 Session unset($_SESSION['views']); 终结 Session session_destroy(); Session服务器设置 -- PHP.ini 中关于Session的配置： session.save_handler = files session.save_path="C:\UPUPW_K1.8\temp\53session" session.use_cookies = 1 session.name = PHPSESSID session.auto_start = 1 session.gc_maxlifetime = 1440 (一天)