如何在 PHP 中获取唯一的会话号 - how to get unique session numbers in php

how to get unique session numbers in php

本文关键字：唯一会话获取 PHP | 更新日期: 2023-09-27

>我正在尝试创建两个单独的会话 - 一个用于用户是管理员，另一个用于用户是作者。 $type存储类型为枚举（可以是作者或管理员）。但是，我没有为我的会话获得唯一的会话 ID。我是PHP和MySQL的新手。有人可以告诉我我的代码中的错误在哪里。请帮忙

    <?php
      session_start();
    ?>

    <?php
    include("dbconnect.php");
    $con= new dbconnect();
    $con->connect();
    //create and issue the query
    $sql = "SELECT type FROM users WHERE username = '".$_POST["username"]."' AND password = PASSWORD('".$_POST["password"]."')";
    $result = mysql_query($sql);
    //get the number of rows in the result set; should be 1 if a match
    if (mysql_num_rows($result) == 1) {
       $type_num=0;
        //if authorized, get the values
          while ($info = mysql_fetch_array($result)) {
        $type =$info['type'];
        }
         if($type == "admin")
            {
             $_SESSION['type']=1;
             $u = 'welcome.php';
             header('Location: '.$u);  
            }
           else
            {
              $_SESSION['type']=$type_num;
              $u = 'welcome.php';
              header('Location: '.$u);

            }
        } 
          else {
            //redirect back to loginfailed.html form if not in the table
            header("Location: loginfailed.html");
            exit;
            }
            ?>

欢迎.php如下：

<?php
  session_start();
?>
<html>
<body>
<h2>Welcome to SOD73.</h2>
<?
if($_SESSION['type']==1){
     echo "You are of the usertype Admin and your session id is ";
     echo session_id();
     session_destroy();
}
else {
echo "You are of the usertype Author and your session id is ";
echo session_id();
session_destroy();
}
?>
</body>
</html>

在文件中调用 session_destroy（）之前，您必须使用 session_regenerate_id（） welcome.php