打开discuz根目录的api里的uc.php，找到197行左右的synlogin()方法，替换成以下代码。
function synlogin($get, $post) {
global $_G;
if (!API_SYNLOGIN) {
return API_RETURN_FORBIDDEN;
}
header('P3P: CP="CURa ADMa DEVa PSAo PSDo OUR BUS UNI PUR INT DEM STA PRE COM NAV OTC NOI DSP COR"');
$cookietime = 31536000;
$uid = intval($get['uid']);
$query = DB::query("SELECT uid, username, password FROM " . DB::table('common_member') . " WHERE uid='$uid'");
if ($member = DB::fetch($query)) {
dsetcookie('auth', authcode("$member[password]\t$member[uid]", 'ENCODE'), $cookietime);
} else {
$username = $get['username'];
$query = DB::query("SELECT uid, username, password, email FROM " . DB::table('ucenter_members') . " WHERE username='$username'");
$member = DB::fetch($query);
$password = $member['password'];
$email = $member['email'];
$ip = $_SERVER['REMOTE_ADDR'];
$time = time();
$userdata = array(
'uid' => $uid,
'username' => $username,
'password' => $password,
'email' => $email,
'adminid' => 0,
'groupid' => 10,
'regdate' => $time,
'credits' => 0,
'timeoffset' => 9999
);
DB::insert('common_member', $userdata);
$status_data = array(
'uid' => $uid,
'regip' => $ip,
'lastip' => $ip,
'lastvisit' => $time,
'lastactivity' => $time,
'lastpost' => 0,
'lastsendmail' => 0
);
DB::insert('common_member_status', $status_data);
DB::insert('common_member_profile', array('uid' => $uid));
DB::insert('common_member_field_forum', array('uid' => $uid));
DB::insert('common_member_field_home', array('uid' => $uid));
DB::insert('common_member_count', array('uid' => $uid));
DB::query('UPDATE ' . DB::table('common_setting') . " SET svalue='$username' WHERE skey='lastmember'");
$query = DB::query("SELECT uid, username, password FROM " . DB::table('common_member') . " WHERE uid='$uid'");
if ($member = DB::fetch($query)) {
dsetcookie('auth', authcode("$member[password]\t$member[uid]", 'ENCODE'), $cookietime);
}
}
}
此时其他应用注册会员后，调用uc_user_synlogin同步登录时，会往discuz的会员表里插入新会员。就免去了用户需要自己在discuz手动登录一次的烦恼，直接discuz登录成功。