From e7f64590f348298a689d838a744f23f69971f2d6 Mon Sep 17 00:00:00 2001
From: unknown <2654405913@qq.com>
Date: Thu, 2 Jun 2022 23:50:29 +0800
Subject: [PATCH] ww

---
 ...50\345\261\200\345\217\230\351\207\217.md" | 98 +++++++++++++++++++
 1 file changed, 98 insertions(+)
 create mode 100644 "\346\231\217\345\277\227\347\220\264/20220601-\350\266\205\345\205\250\345\261\200\345\217\230\351\207\217.md"
diff --git "a/\346\231\217\345\277\227\347\220\264/20220601-\350\266\205\345\205\250\345\261\200\345\217\230\351\207\217.md" "b/\346\231\217\345\277\227\347\220\264/20220601-\350\266\205\345\205\250\345\261\200\345\217\230\351\207\217.md"
new file mode 100644
index 0000000..f587e6a
--- /dev/null
+++ "b/\346\231\217\345\277\227\347\220\264/20220601-\350\266\205\345\205\250\345\261\200\345\217\230\351\207\217.md"
@@ -0,0 +1,98 @@
+```PHP
+
+ Cookie
+
+- setcookie()  函数用于设置 cookie。
+
+- setcookie()  函数必须位于 <html> 标签之前。
+setcookie(name, value, expire);
+设置cookie时间
+time()+60*60*1;
+删除cookie
+time()-1;
+ Session
+
+启动会话 **session_start();**
+
+储存Session变量
+session_start();
+
+$_SESSION['name']="张三";
+unset($_SESSION['name']);//删除其中一条数据
+或
+session_destroy();//将session彻底删除
+
+zyt
+
+
+
+<?php
+$user=isset($_SESSION['user'])?$_SESSION['user']:"";
+if (empty($user)) {
+
+
+    echo $_SESSION ['user'] . "<a href='ex1.php'>登录再查看</a>";
+    echo "<a href='ex1.php'>退出</a>";
+}else
+{
+?>
+<<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <meta name="viewport"
+          content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+    <meta http-equiv="X-UA-Compatible" content="ie=edge">
+    <title>首页</title>
+</head>
+<body>
+<form>
+
+
+</form>
+</body>
+</html>
+<?php
+}
+?>
+
+<?php
+session_abort();
+$user=isset($_POST['user'])?$_POST['user']:"";
+
+$psw=isset($_POST['password'])?$_POST['password']:"";
+if(!empty($user)){
+    if ($user=='小五'&&$psw=='123'){
+        echo "登录成功<a href='ex2.php'>进入</a>";
+    }else"登陆失败";
+
+
+}else{
+    ?>
+    <!doctype html>
+    <html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <meta name="viewport"
+              content="width=device-width, user-scalable=no, initial-scale=1.0, maximum-scale=1.0, minimum-scale=1.0">
+        <meta http-equiv="X-UA-Compatible" content="ie=edge">
+        <title>登录</title>
+    </head>
+    <body>
+    <form action="" method="post">
+        <br>用户名：<input type="text" name="user" >
+        <br>密码：<input type="password" name="password">
+        <br><input type="submit"></form>
+    </body>
+    </html>
+
+<?php
+}
+?>
+<?php
+session_abort();
+session_destroy();
+echo"<a href='ex1.php'>退出</a>";
+?>
+
+```
\ No newline at end of file
-- 
Gitee

