帮助！我正在使用Jpmaster77的登录脚本，但需要更改它，因为我需要来自用户和其他东西的更多信息...... 突然间，我遇到了这个问题：
通常，在人员点击“登录”后，脚本会将信息传递给process.php，后者运行session.php。 session.php设置cookie。然后它调用database.php，并提取用户信息。 但是现在，脚本不再转到“登录”页面，而是循环回登录表单。但是，系统已注册我已登录 - 当我运行“谁在线”脚本时，我刚刚登录的帐户显示出来。 我怀疑脚本在session.php部分被卡住了（即遇到错误，或者无法写入数据库或其他东西），但我不确定.....我想检查，但是由于某些奇怪的原因，Xdebug对我不起作用= _ = 所以这是我的代码：
登录表单
<form action="process.php" method="POST" id="user_main">
<span class="label">Username:</span>
<input type="text" name="user" maxlength="30" value="<? echo $form->value("user"); ?>">
<? echo $form->error("user"); ?><br />
<span class="label">Password:</span> <input type="password" name="pass" maxlength="30" value="<? echo $form->value("pass"); ?>"><? echo $form->error("pass"); ?><br />
<input type="checkbox" name="remember" <? if($form->value("remember") != ""){ echo "checked"; } ?> />
<span class="label">Remember me next time</span><br />
<input type="hidden" name="sublogin" value="1">
<input type="submit" value="Login"><br /><br />
[<a href="forgotpass.php">Forgot Password?</a>] | Not registered? <a href="register.php">Sign-Up!</a>
</form>
Process.php
（首先检查通过上面文件中的隐藏值发送的表格）
function Process(){
global $session;
/* User submitted login form */
if(isset($_POST['sublogin'])){
$this->procLogin();
}
和procLogin说：
function procLogin(){
global $session, $form;
/* Login attempt */
$retval = $session->login($_POST['user'], $_POST['pass'], isset($_POST['remember']));
/* Login successful */
if($retval){
header("Location: ".$session->referrer);
}
/* Login failed */
else{
$_SESSION['value_array'] = $_POST;
$_SESSION['error_array'] = $form->getErrorArray();
header("Location: ".$session->referrer);
}
}
会话登录（）说：
function login($subuser, $subpass, $subremember){
global $database, $form; //The database and form object
/* Username error checking */
$field = "user"; //Use field name for username
if(!$subuser || strlen($subuser = trim($subuser)) == 0){
$form->setError($field, "* Username not entered");
}
else{
/* Check if username is not alphanumeric */
if(!ctype_alnum($subuser)){
$form->setError($field, "* Username not alphanumeric");
}
}
/* Password error checking */
$field = "pass"; //Use field name for password
if(!$subpass){
$form->setError($field, "* Password not entered");
}
/* Return if form errors exist */
if($form->num_errors > 0){
return false;
}
/* Checks that username is in database and password is correct */
$subuser = stripslashes($subuser);
$result = $database->confirmUserPass($subuser, md5($subpass));
/* Check error codes */
if($result == 1){
$field = "user";
$form->setError($field, "* Username not found");
}
else if($result == 2){
$field = "pass";
$form->setError($field, "* Invalid password");
}
/* Return if form errors exist */
if($form->num_errors > 0){
return false;
}
/* Username and password correct, register session variables */
$this->userinfo = $database->getUserInfo($subuser);
$this->username = $_SESSION['username'] = $this->userinfo['username'];
$this->userid = $_SESSION['userid'] = $this->generateRandID();
$this->userlevel = $this->userinfo['userlevel'];
/* Insert userid into database and update active users table */
$database->updateUserField($this->username, "userid", $this->userid);
$database->addActiveUser($this->username, $this->time);
$database->removeActiveGuest($_SERVER['REMOTE_ADDR']);
/**
* This is the cool part: the user has requested that we remember that
* he's logged in, so we set two cookies. One to hold his username,
* and one to hold his random value userid. It expires by the time
* specified in constants.php. Now, next time he comes to our site, we will
* log him in automatically, but only if he didn't log out before he left.
*/
if($subremember){
setcookie("cookname", $this->username, time()+COOKIE_EXPIRE, COOKIE_PATH);
setcookie("cookid", $this->userid, time()+COOKIE_EXPIRE, COOKIE_PATH);
}
/* Login completed successfully */
return true;
}
会话开始（）
function startSession(){
global $database; //The database connection
session_start() or die("Line 46"); //Tell PHP to start the session
/* Determine if user is logged in */
$this->logged_in = $this->checkLogin();
/**
* Set guest value to users not logged in, and update
* active guests table accordingly.
*/
if(!$this->logged_in){
$this->username = $_SESSION['username'] = GUEST_NAME;
$this->userlevel = GUEST_LEVEL;
$database->addActiveGuest($_SERVER['REMOTE_ADDR'], $this->time);
}
/* Update users last active timestamp */
else{
$database->addActiveUser($this->username, $this->time);
}
/* Remove inactive visitors from database */
$database->removeInactiveUsers();
$database->removeInactiveGuests();
/* Set referrer page */
if(isset($_SESSION['url'])){
$this->referrer = $_SESSION['url'];
}else{
$this->referrer = "/";
}
/* Set current url */
$this->url = $_SESSION['url'] = $_SERVER['PHP_SELF'];
}
CheckLogin（）
function checkLogin(){
global $database; //The database connection
/* Check if user has been remembered */
if(isset($_COOKIE['cookname']) && isset($_COOKIE['cookid'])){
$this->username = $_SESSION['username'] = $_COOKIE['cookname'];
$this->userid = $_SESSION['userid'] = $_COOKIE['cookid'];
}
/* Username and userid have been set and not guest */
if(isset($_SESSION['username']) && isset($_SESSION['userid']) &&
$_SESSION['username'] != GUEST_NAME){
/* Confirm that username and userid are valid */
if($database->confirmUserID($_SESSION['username'], $_SESSION['userid']) != 0){
/* Variables are incorrect, user not logged in */
unset($_SESSION['username']);
unset($_SESSION['userid']);
return false;
}
/* User is logged in, set class variables */
$this->userinfo = $database->getUserInfo($_SESSION['username']);
$this->username = $this->userinfo['username'];
$this->userid = $this->userinfo['userid'];
$this->userlevel = $this->userinfo['userlevel'];
return true;
}
/* User not logged in */
else{
return false;
}
}
帮助？