下面我们要讲到二种用户登录方法一种是利用window验证加数据库密码验证实现登录,后者是利用cookie记录用户信息进行登录,有需要的朋友可以试下.
<?php function authenticate_user() { header('WWW-Authenticate: Basic realm="Secret Stash"'); header("HTTP/1.0 401 Unauthorized"); exit; } if (!isset($_SERVER['PHP_AUTH_USER'])) { authenticate_user(); } else { mysql_pconnect("localhost", "authenticator", "secret") or die("Can't connect to database server!"); mysql_select_db("java2s") or die("Can't select authentication database!"); $query = "SELECT username, ps教程wd FROM user WHERE username='$_SERVER[PHP_AUTH_USER]' AND pswd=MD5('$_SERVER[PHP_AUTH_PW]')"; //开源代码phprm.com $result = mysql_query($query); // If nothing was found, reprompt the user for the login www.111cn.net information. if (mysql_num_rows($result) == 0) { authenticate_user(); } } ?>
利用cookie登录方法,实例代码如下:
<html> <head> <title>Enter Password</title> </head> <body> <form name="forml" method="POST" action="CookieBasedPasswordLogin.php"> <table> <tr> <td colspan="2" > <div align="center"><b>Please Specify the Password</b></div> </td> </tr> <tr>> <td> <div align="right">Customer ID</div> </td> <td> <input type="text" name="username"> </td> </tr> <tr> <td> <div align="right">Password</div> </td> <td> <input type="password" name="password"> </td> </tr> <tr> <td colspan="2"> <center> <input type="submit" name="Submit" value="Login"> </center> </td> </tr> </table> </form> </body> </html>