From de66e34b399659147dc94de751078abe770b1a30 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?= <790604007@qq.com>
Date: Thu, 2 Jun 2022 14:11:27 +0000
Subject: [PATCH 1/3] =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../20220601--Cookie\345\222\214Session.md"   | 166 ++++++++++++++++++
 1 file changed, 166 insertions(+)
 create mode 100644 "\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
diff --git "a/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md" "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
new file mode 100644
index 0000000..659f483
--- /dev/null
+++ "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
@@ -0,0 +1,166 @@
+## Cookie和Session
+
+
+
+#### Cookie
+
+- setcookie()  函数用于设置 cookie。
+
+- setcookie()  函数必须位于 <html> 标签之前。
+
+```php
+setcookie(name, value, expire);
+```
+
+设置cookie时间
+
+```php
+time()+60*60*1;
+```
+
+删除cookie
+
+```php
+time()-1;
+```
+
+
+
+#### Session
+
+启动会话 **session_start();**
+
+储存Session变量
+
+```php
+<?php
+session_start();
+
+$_SESSION['name']="张三";
+```
+
+
+
+删除Session
+
+```php
+unset($_SESSION['name']);//删除其中一条数据
+或
+session_destroy();//将session彻底删除
+```
+
+
+
+
+
+## 作业
+
+
+
+##### 登录界面
+
+```php
+<?php
+session_start();
+
+$user = isset($_POST['user'])?$_POST['user']:"";
+$pwd = isset($_POST['pwd'])?$_POST['pwd']:"";
+
+if (!empty($user)){
+    if ($user=='001' && $pwd=='123456'){
+        $_SESSION['user'] = '001';
+
+        echo $_SESSION['user']."登录成功！<a href='home.php'>进入</a>";
+    }else {
+        echo "登录失败！<a href=''>返回</a>";
+    }
+}else{
+
+?>
+
+<!doctype html>
+<html lang="en">
+    <head>
+        <meta charset="UTF-8">
+        <title>登录</title>
+</head>
+<body>
+    <form action="" method="post">
+        用户名：<input type="text" name="user" id="">
+        <br>
+        密码：<input type="password" name="pwd" id="">
+        <br>
+        <input type="submit">
+    </form>
+</body>
+</html>
+
+
+<?php
+    }
+?>
+```
+
+##### 退出登录
+
+```php
+<?php
+session_start();
+
+session_destroy();
+
+echo "退出成功<br><a href='login.php'>重新登录</a>";
+
+```
+
+##### 首页
+
+```php
+<?php
+session_start();
+
+$user = isset($_SESSION['user'])?$_SESSION['user']:"";
+
+if (empty($user)){
+    echo "请先登录再查看<a href='login.php'>登录</a>";
+    exit();
+}
+?>
+
+<!doctype html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>首页</title>
+</head>
+<body>
+    <h3 style="color: red" align="center">欢迎！！！</h3>
+    <form action="">
+        <table align="center">
+            <tr>
+                <th><h3>姓名：</h3></th>
+                <td><h3>张三</h3></td>
+            </tr>
+            <tr>
+                <th><h3>性别：</h3></th>
+                <td><h3>男</h3></td>
+            </tr>
+            <tr>
+                <th><h3>年龄：</h3></th>
+                <td><h3>20</h3></td>
+            </tr>
+            <tr>
+                <th><h3>职位：</h3></th>
+                <td><h3>法外狂徒</h3></td>
+            </tr>
+            <tr>
+                <th><h3>余额：</h3></th>
+                <td style="color:red"><h3>-1000000元</h3></td>
+            </tr>
+        </table>
+    </form>
+</body>
+</html>
+
+```
+
-- 
Gitee


From cfb1ed09ec249a2941a98cc02f8c5a943801af8b Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?= <790604007@qq.com>
Date: Thu, 2 Jun 2022 14:52:24 +0000
Subject: [PATCH 2/3] =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../20220601--Cookie\345\222\214Session.md"                    | 3 +++
 1 file changed, 3 insertions(+)

diff --git "a/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md" "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
index 659f483..004e742 100644
--- "a/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
+++ "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
@@ -157,6 +157,9 @@ if (empty($user)){
                 <th><h3>余额：</h3></th>
                 <td style="color:red"><h3>-1000000元</h3></td>
             </tr>
+            <tr>
+                <td align="center" colspan="2"><a href="login.php">退出登录</a> </td>
+            </tr>
         </table>
     </form>
 </body>
-- 
Gitee


From 37665c1daa81b545b7bd3394ad924105b21cf6ab Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?= <790604007@qq.com>
Date: Thu, 2 Jun 2022 14:54:08 +0000
Subject: [PATCH 3/3] =?UTF-8?q?=E9=9F=A6=E7=BB=8D=E4=B8=A5?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 .../20220601--Cookie\345\222\214Session.md"                     | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git "a/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md" "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
index 004e742..92da04d 100644
--- "a/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
+++ "b/\351\237\246\347\273\215\344\270\245/20220601--Cookie\345\222\214Session.md"
@@ -158,7 +158,7 @@ if (empty($user)){
                 <td style="color:red"><h3>-1000000元</h3></td>
             </tr>
             <tr>
-                <td align="center" colspan="2"><a href="login.php">退出登录</a> </td>
+                <td align="center" colspan="2"><a href="unlogin.php">退出登录</a> </td>
             </tr>
         </table>
     </form>
-- 
Gitee


姓名：	张三
性别：	男
年龄：	20
职位：	法外狂徒
余额：	-1000000元