From 5156c815d54e7f6449a976df599a58070abfabfe Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?=E4=B8=81=E4=BD=B3=E4=BC=B6?= <2621740991@qq.com>
Date: Sun, 29 May 2022 23:38:45 +0800
Subject: [PATCH] test

---
 ...222\214Session\347\256\241\347\220\206.md" |  83 ++++++
 ...41\347\220\206\344\275\234\344\270\232.md" | 237 ++++++++++++++++++
 2 files changed, 320 insertions(+)
 create mode 100644 "\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241Cookie\347\232\204\344\275\277\347\224\250\345\222\214Session\347\256\241\347\220\206.md"
 create mode 100644 "\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241cookie\347\232\204\344\275\277\347\224\250\345\222\214\346\216\214\346\217\241session\347\256\241\347\220\206\344\275\234\344\270\232.md"
diff --git "a/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241Cookie\347\232\204\344\275\277\347\224\250\345\222\214Session\347\256\241\347\220\206.md" "b/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241Cookie\347\232\204\344\275\277\347\224\250\345\222\214Session\347\256\241\347\220\206.md"
new file mode 100644
index 0000000..b30d014
--- /dev/null
+++ "b/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241Cookie\347\232\204\344\275\277\347\224\250\345\222\214Session\347\256\241\347\220\206.md"
@@ -0,0 +1,83 @@
+# 掌握Cookie的使用
+
+#### 了解Cookie
+
+#### 创建Cookie
+
+```php
+setcookie('school','闽西大学',time()+60*60*24);
+setcookie('class','软件6班',time()+60*60*24);
+setcookie('logintime',time(),time()+60*60*24);//记录登录时间
+```
+
+#### 读取Cookie
+
+```php
+echo"你的学校是：".$_COOKIE['school']."<br>";
+echo"你的班级是：".$_COOKIE['class']."<br>";
+//如果第一次登录，就说你是第一次登录，否则，就显示上次登录的时间
+if(isset($_COOKIE['logintime'])){
+    echo"您上次登录的时间为：".date(format'Y-m-d H:m:s',$_COOKIE['logintime']);
+}else{
+    echo"欢迎您，你是第一次来到这里，要不要办个卡@！";
+}
+```
+
+#### 删除Cookie
+
+```php
+<?php
+    setcookie('logintime','',time()-1);
+```
+
+#### Cookie的生命周期
+
+
+
+1.在PHP中通过setcookie（）函数创建Cookie
+
+语法：
+
+```php
+bool setcookie（string $name [,string $value[,int $expire=0[,string $path[,string $domain[,int $secure]]]]
+```
+
+# Session管理
+
+生命周期由用户访问页面开始，直到断开与网站链接结束
+
+启动Session
+
+```php
+ session_start();
+
+$_SESSION['school']="闽西大学";
+```
+
+```php
+//使用超全局变量$_SESSION往Session里存数据
+ session_start();
+
+$a=$_SESSION['school'];
+echo "学校是".$a;
+```
+
+删除Session
+
+```php
+ //删除单个Session的值
+session_start();
+unset($_SESSION['school']);
+```
+
+```php
+//删除所有Session的值
+$_SESSION=array();
+```
+
+```php
+//结束Session会话
+session_destory();
+```
+
+ 
\ No newline at end of file
diff --git "a/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241cookie\347\232\204\344\275\277\347\224\250\345\222\214\346\216\214\346\217\241session\347\256\241\347\220\206\344\275\234\344\270\232.md" "b/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241cookie\347\232\204\344\275\277\347\224\250\345\222\214\346\216\214\346\217\241session\347\256\241\347\220\206\344\275\234\344\270\232.md"
new file mode 100644
index 0000000..3446aff
--- /dev/null
+++ "b/\344\270\201\344\275\263\344\274\266/20220525-\346\216\214\346\217\241cookie\347\232\204\344\275\277\347\224\250\345\222\214\346\216\214\346\217\241session\347\256\241\347\220\206\344\275\234\344\270\232.md"
@@ -0,0 +1,237 @@
+```php
+<?php
+error_reporting(E_ALL^E_WARNING);
+error_reporting(E_ALL^E_NOTICE);
+$conn = mysqli_connect
+('127.0.0.1','root','colourdragon','studentt');
+mysqli_query($conn,"set names utf8");
+session_start();
+$user = $_SESSION['username']?:$_COOKIE['username'];
+if( $user=="colordragon"){
+    echo "用户：".$user."  登陆成功";
+    echo "<a href='logout.php'>注销</a>";
+$sql="select * from `user` order by id";
+//执行上面的语句，返回一个结果集
+$res =mysqli_query($conn,$sql);
+?>
+
+<html>
+    <head>
+        <meta charset="utf-8">
+        <title>学生成绩表</title>
+    </head>
+    <body>
+    <h1 align="center">学生成绩表</h1>
+    <table border="1" width="600" align="center">
+        <tr align="center">
+            <th>学生编号</th>
+            <th>学生姓名</th>
+            <th>学生成绩</th>
+            <th>操作</th>
+        </tr>
+        <?php
+            if(!mysqli_num_rows($res)){
+                echo "<tr align='center'><td colspan='5'>没有数据</td></tr>";
+            }else{
+                while($a = mysqli_fetch_assoc($res)){
+        ?>
+        <tr align="center">
+            <td><?php echo $a['id']; ?></td>
+            <td><?php echo $a['name']; ?></td>
+            <td><?php echo $a['score']; ?></td>
+            <td>
+                <a href="edit.php?id=<?php echo $a['id']; ?>">修改</a>|
+                <a href="delete.php?id=<?php echo $a['id']; ?>">删除</a></td>
+        </tr>
+        <?php
+                }
+            }
+        ?>
+    </table>
+    <p style="text-align: center"><a href="add.php" >添加信息</a></p>
+    </body>
+</html>
+<?php
+}else{
+echo "没有登陆&nbsp;&nbsp;&nbsp;&nbsp;<a href='login.html'>登陆</a>";
+}
+
+<?php
+//添加信息
+?>
+<html>
+<head>
+    <title>添加信息</title>
+
+</head>
+<h1>添加学生成绩</h1>
+<!--创建一个表单来收集新加的信息，把收集的信息传给save.php-->
+<form action="save.php" method="post">
+    <table border="1" width="300">
+
+        <tr>
+            <th>学生姓名</th><td><input type="text" name="name"></td>
+        </tr>
+        <tr>
+            <th>学生成绩</th><td><input type="text" name="score"></td>
+        </tr>
+
+        <tr>
+            <td colspan="2" align="center"><input type="submit" name='submit' value="提交">&nbsp;&nbsp;&nbsp;&nbsp; <input type="reset" value="取消"></td>
+
+        </tr>
+    </table>
+    <a href="index.php">返回</a>
+
+</form>
+</html>
+
+<?php
+error_reporting(E_ALL^E_WARNING);
+$conn = mysqli_connect
+('127.0.0.1','root','colourdragon','studentt');
+mysqli_query($conn,"set names utf8");
+
+$student_id = $_GET['id'];
+//创建sql删除语句
+$sql = "delete from `user` where id=$student_id";
+//执行上面的sql语句
+$ret = mysqli_query($conn,$sql);
+if($ret){
+    echo "删除成功！<a href='./index.php'>返回首页</a>";
+}else{
+    echo "修改失败！";
+
+<?php
+error_reporting(E_ALL^E_WARNING);
+$conn = mysqli_connect
+('127.0.0.1','root','colourdragon','studentt');
+mysqli_query($conn,"set names utf8");
+$student_id=$_GET['id'];
+$sql = "select * from `user` where `id`=$student_id";
+$res = mysqli_query($conn,$sql);
+$row = mysqli_fetch_assoc($res);
+?>
+
+<html>
+<head>
+    <title>修改学生信息</title>
+
+</head>
+<h1>修改信息</h1>
+<form action="update.php" method="post">
+    <table border="1" width="300">
+        <tr>
+            <th>学生名称</th><td><input type="text" name="name" value="<?php echo $row['name'] ?>"></td>
+        </tr>
+        <tr>
+            <th>学生成绩</th><td><input type="text" name="score" value="<?php echo $row['score'] ?>"></td>
+        </tr>
+        <input type="text" name="id" value="<?php echo $row['id'] ?>" hidden>
+        <tr>
+            <td colspan="2" align="center"><input type="submit" name='submit' value="提交">&nbsp;&nbsp;&nbsp;&nbsp; <input type="reset" value="取消"></td>
+
+        </tr>
+    </table>
+    <a href="index.php">返回</a>
+
+</form>
+</html>
+login.html
+
+<!DOCTYPE html>
+<html lang="en">
+<head>
+    <meta charset="UTF-8">
+    <title>用户登陆界面</title>
+</head>
+<body>
+    <h3 align="center">学生信息管理系统用户登陆</h3>
+    <form action="login.php" method="post">
+       <table align="center">
+           <tr>
+               <td>用户名：</td>
+               <td><input type="text" name="username"></td>
+           </tr>
+           <tr>
+               <td>密码：</td>
+               <td><input type="password" name="password"></td>
+           </tr>
+           <tr align="center">
+               <td colspan="2"><input type="checkbox" name="auto" value="yes">7天内自动登录</td>
+           </tr>
+           <tr align="center">
+               <td colspan="2"><input type="submit" value="登陆"></td>
+           </tr>
+       </table>
+    </form>
+</body>
+</html>
+login.php
+
+<?php
+session_start();
+$username = 'colordragon';
+$passwrod = '391831';
+if($_POST['username']==$username && $_POST['password']==$passwrod){
+    echo "登录成功！";
+    $_SESSION['username']=$username;
+
+    if($_POST['auto']=='yes'){
+        setcookie('username',$username,time()+60*60*24*7);
+    }
+
+    header('location:index.php');
+}else{
+    die("登录失败！");
+}
+logout.php
+
+<?php
+session_start();
+unset($_SESSION['username']);
+setcookie('username','',time()-1);
+echo "注销成功";
+
+<?php
+error_reporting(E_ALL^E_WARNING);
+$conn = mysqli_connect
+('127.0.0.1','root','colourdragon','studentt');
+mysqli_query($conn,"set names utf8");
+if(!isset($_POST['submit'])){
+    die("非法访问！");
+}
+$student_name=$_POST['name'];
+$student_score=$_POST['score'];
+
+$sql = "insert into `user` (name,score)
+ values ('$student_name','$student_score')";
+$ret = mysqli_query($conn,$sql);
+if($ret){
+    echo "添加成功！<a href='./index.php'>返回首页</a>";
+}else{
+    echo "添加失败！";
+}
+
+<?php
+error_reporting(E_ALL^E_WARNING);
+$conn = mysqli_connect
+('127.0.0.1','root','root','studentt');
+mysqli_query($conn,"set names utf8");
+
+
+if (!isset($_POST['submit'])) {
+    die("非法访问！");
+}
+$student_name = $_POST['name'];
+$student_score= $_POST['score'];
+
+$sql = "update `user` set `name`='$student_name',score='$student_score'";
+$res = mysqli_query($conn, $sql);
+if ($res) {
+    echo "修改成功！<a href='./index.php'>返回首页</a>";
+} else {
+    echo "修改失败！";
+}
+```
+
-- 
Gitee

