PHP MYSQL会员系统的登陆即权限判断实现代码

error_reporting(0);

session_start();

//数据库连接

$conn = mysql_connect(localhost, root, );

mysql_select_db(chenkun, $conn);

mysql_query(SET NAMES UTF-8);

//定义常量

define(ALL_PS, PHP);

function user_shell($uid, $shell, $m_id) {

$sql = “select * from admin where uid=$uid”;

$query = mysql_query($sql);

$row = mysql_fetch_array($query);

$shell = is_array($row) ? $shell == md5($row[username] . $row[password] . ALL_PS) : FALSE;

if ($shell) {

if ($row[m_id]