From 56b976cc3d13939eb04fb4e7155b045a2e509661 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8B=8F=E5=AD=90=E4=B8=B9?= <2585991566@qq.com>
Date: Wed, 25 May 2022 11:04:59 +0800
Subject: [PATCH 1/2] =?UTF-8?q?=E6=9C=BA=E6=88=BF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...73\345\275\225\351\252\214\350\257\201.md" | 105 ++++++++++++++++++
 1 file changed, 105 insertions(+)
 create mode 100644 "\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
diff --git "a/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md" "b/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
new file mode 100644
index 0000000..3688f3b
--- /dev/null
+++ "b/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
@@ -0,0 +1,105 @@
+一、首页 index
+
+```php
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/5/25
+ * Time: 10:35
+ */
+
+//启动
+session_start();
+//$user = $_SESSION['username']?:$_COOKIE['nsername'];
+// 判断是否登录
+if (isset($user) && $user == "admin"){
+    echo "学生管理系统首页";
+    echo "欢迎您：".$user;
+    echo "<br>"."<a href='logout.php'>注销</a>";
+}else{
+    echo "您未登录！<a href='login.html'>马上去登录</a>";
+    //header('location:login.html');//没有登录就直接跳转到登录页面
+}
+
+```
+
+二、登录 login
+
+```HTML
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>学生管理系统登录页面</title>
+</head>
+<body>
+<h1>学生管理系统登录界面</h1>
+<form action="login.php" method="post">
+    <table border="0" cellpadding="" cellspacing="">
+        <tr>
+            <td>用户名：</td>
+            <td><input type="text" name="username"></td>
+        </tr>
+        <tr>
+            <td>密码：</td>
+            <td><input type="password" name="password"></td>
+        </tr>
+        <tr>
+            <td></td>
+            <td><input type="checkbox" name="auto" value="yes">8小时内自动登录</td>
+        </tr>
+        <tr>
+            <td><input type="submit" value="登录"></td>
+        </tr>
+    </table>
+</form>
+</body>
+</html>
+```
+
+三、登录返回值 login
+
+```php
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/5/25
+ * Time: 10:54
+ */
+session_start();
+//假设管理员账户如下
+$username = 'admin';
+$passwrod = '123456';
+if ($_POST['username']==$username && $_POST['password']==$passwrod){
+    echo "登录成功！";
+    $_SESSION['username']=$username;
+    if ($_POST['auto']=='yes'){
+        setcookie('username',"admin",time()+60*60*8);
+    }
+    //header('location:index.php');一旦账号正确就自动跳到首页
+    echo "<a href='index.php'>返回首页</a>";
+}else{
+    die("登录失败！");
+}
+```
+
+四、注销 logout
+
+```php
+<?php
+/**
+ * Created by PhpStorm.
+ * User: Administrator
+ * Date: 2022/5/25
+ * Time: 11:00
+ */
+//注销功能，就是删除session对应的值
+//启动
+session_start();
+unset($_SESSION['username']);
+setcookie('username','',time()-1);
+echo "注销成功";
+```
+
-- 
Gitee


From 1c38298010f9c3193df7565491ea12ff39c8538f Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E8=8B=8F=E5=AD=90=E4=B8=B9?= <2585991566@qq.com>
Date: Wed, 25 May 2022 11:34:35 +0800
Subject: [PATCH 2/2] =?UTF-8?q?=E6=9C=BA=E6=88=BF?=
MIME-Version: 1.0
Content-Type: text/plain; charset=UTF-8
Content-Transfer-Encoding: 8bit

---
 ...273\345\275\225\351\252\214\350\257\201.md" | 18 ++++++++++++------
 1 file changed, 12 insertions(+), 6 deletions(-)

diff --git "a/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md" "b/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
index 3688f3b..ce6c7af 100644
--- "a/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
+++ "b/\350\213\217\345\255\220\344\270\271/PHP\351\242\230\345\236\213/20220525-\347\231\273\345\275\225\351\252\214\350\257\201.md"
@@ -1,4 +1,6 @@
-一、首页 index
+# 一、学生管理系统
+
+## 1、首页 index
 
 ```php
 <?php
@@ -9,11 +11,12 @@
  * Time: 10:35
  */
 
-//启动
+//启动session
 session_start();
-//$user = $_SESSION['username']?:$_COOKIE['nsername'];
 // 判断是否登录
 if (isset($user) && $user == "admin"){
+    //服务器保存与本地保存
+	$user = $_SESSION['username']?:$_COOKIE['nsername'];
     echo "学生管理系统首页";
     echo "欢迎您：".$user;
     echo "<br>"."<a href='logout.php'>注销</a>";
@@ -24,7 +27,7 @@ if (isset($user) && $user == "admin"){
 
 ```
 
-二、登录 login
+## 2、登录 login
 
 ```HTML
 <!DOCTYPE html>
@@ -58,7 +61,7 @@ if (isset($user) && $user == "admin"){
 </html>
 ```
 
-三、登录返回值 login
+## 3、登录返回值 login
 
 ```php
 <?php
@@ -72,9 +75,12 @@ session_start();
 //假设管理员账户如下
 $username = 'admin';
 $passwrod = '123456';
+//用超全局变量判断用户输入的账户密码是否对应
 if ($_POST['username']==$username && $_POST['password']==$passwrod){
     echo "登录成功！";
+    //保存到服务端
     $_SESSION['username']=$username;
+    //判断是否选择yes
     if ($_POST['auto']=='yes'){
         setcookie('username',"admin",time()+60*60*8);
     }
@@ -85,7 +91,7 @@ if ($_POST['username']==$username && $_POST['password']==$passwrod){
 }
 ```
 
-四、注销 logout
+## 4、注销 logout
 
 ```php
 <?php
-- 
Gitee

