当前位置：Gxlcms > PHP教程 > 一个简单的php用户登陆模块

一个简单的php用户登陆模块

时间：2021-07-01 10:21:17 帮助过：19人阅读

  6. 登陆系统
  9. session_start();
  10. if ($_SESSION[username]) {
  11. ?>
  13. }else {
  14. ?>
  16. }
  17. ?>

2，config.php

  2. $dbhost="localhost";
  3. $dbuser="root";
  4. $dbpassword="123456";
  5. $dbname="auth";
  6. $conn=mysql_connect("$dbhost","$dbuser","$dbpassword") or die('不能连接服务器'.mysql_error());
  7. mysql_select_db("$dbname",$conn) or die("数据库访问错误".mysql_errno());
  8. mysql_query("set names gb2312");
  9. ?>

3，userlogin.php

  6. 登陆系统_bbs.it-home.org
  9. session_start();
  10. require("config.auth.php");
  11. if ($_POST[submit]) {
  12. $sql="select * from userinfo where username = '$_POST[username]' and password = '$_POST[password]'";
  13. $result=mysql_query($sql);
  14. $numrows=mysql_num_rows($result);
  15. if ($numrows == 1) {
  16. $row=mysql_fetch_assoc($result);
  17. $_SESSION[username]=$row[username];
  18. //echo $_SESSION[username];
  19. echo "";
  20. }else {
  21. echo "