添加新的PHP會話變量正在破壞會話
[英]Adding new PHP session variable is destroying the session
問題描述
我遇到了一個奇怪的問題，我希望有人能說清楚。 我有一個使用PHP會話存儲登錄詳細信息的網站。 在這個網站上是一個也使用PHP會話變量的游戲。 每當我沒有登錄網站一段時間，然后嘗試玩它記錄我的游戲。 如果我立即重新登錄會話變量會被記住，我會保持登錄狀態，並且可以根據需要多次玩游戲。 我可以訪問網站上的任何其他頁面，沒有任何問題。
我在所有頁面的頂部都有session_start。 有什么想法嗎？ 謝謝。
這是我的init.php文件：
<?php
ob_start();
session_start();
//error_reporting(0); // don't display errors
require 'database/connect.php';
require 'functions/general.php';
require 'functions/users.php';
require 'functions/items.php';
require 'functions/creatures.php';
$current_file = explode('/', $_SERVER['SCRIPT_NAME']);
$current_file = end($current_file);
if (logged_in() === true){
$session_user_id = $_SESSION['user_id'];
$user_data = user_data($session_user_id, 'user_id', 'username', 'password', 'first_name', 'last_name', 'email', 'password_recover', 'type', 'allow_email', 'profile', 'coins');
$creature_data = creature_data($session_user_id, 'base_creature_id', 'level', 'strength', 'speed', 'intelligence', 'happiness', 'status', 'battle_level');
if(user_active($user_data['username']) === false) {
session_destroy();
header('Location: logout.php');
exit();
}
if($current_file !== 'changepassword.php' && $user_data['password_recover'] == 1){
header('Location: changepassword.php?force');
exit();
}
}
$errors = array();
?>
這是游戲文件：
<?php
require_once('core.php');
Hangman::StartPage();
?>
<head>
<link rel="stylesheet" type="text/css" href="games/plank/styles.css" />
</head>
<?php Hangman::PrintGameState(); ?>
<div id="content">
<!--<div id="banner"><img src="games/plank/images/interface/banner.png" /></div>-->
<div id="innerContent">
<div id="wordArea">
<span class="alphabet">
<?php Hangman::PrintCurrentWord(); ?>
</span>
</div>
<span id="controls">
<?php if(isset($_GET['finished']) === true && empty($_GET['finished']) === true){ ?>
<img id="result" src="games/plank/images/interface/<?php echo Hangman::GameResult() ? 'win' : 'lose'; ?>.png" />
<a id="replay" href="http://www.mobbipets.com/site/walkthepalm.php?m=r"></a>
<?php }
else if (Hangman::IsGameFinished()) {
header('Location: walkthepalm.php?finished');
if (Hangman::GameResult() == 'win'){
update_coins($session_user_id, 50);
}
}
else { ?>
<span class="alphabet">
<?php Hangman::PrintKeyboard(); ?>
</span>
<?php } ?>
</span>
<span id="hangman"><img src="games/plank/images/hangman/<?php echo $_SESSION['gameState']; ?>.png" /></span>
</div>
</div>
<?php Hangman::EndPage(); ?>
這是游戲使用的core.php文件。
<?php
require_once('db.php');
/*=================================================
this class handles game logic and php sessions.
==================================================*/
abstract class Hangman
{
private static $pageUrl = 'http://www.mobbipets.com/site/walkthepalm.php';
private static $gameStates = 8; //includes the game over state
private static $keyboardButtons = "abcdefghijklmnopqrstuvwxyz&'-";
private static $underscores = array(
'us_1',
'us_2',
'us_3',
);
private static $alphabetAliases = array(
'&' => 'amp',
'\'' => 'apos',
'-' => 'hyphen',
',' => 'comma',
'!' => 'exclaim',
'+' => 'plus',
'?' => 'question',
);
//just checks if we have a valid session
public static function IsLoggedIn()
{
if(isset($_SESSION['valid']) && $_SESSION['valid'])
return true;
return false;
}
private static function RegenerateSession()
{
//session_regenerate_id();
$_SESSION['valid'] = 1;
$_SESSION['lastActivity'] = time();
$_SESSION['word'] = Database::GetRandomWord();
$_SESSION['lettersLeft'] = strlen($_SESSION['word']);
$_SESSION['guessedLetters'] = '';
$_SESSION['gameState'] = 1;
// $session_user_id = $_SESSION['user_id'];
}
//session handling
public static function StartPage()
{
//session_start();
//terminate the session if we've been inactive for more than 10 minutes
if (self::IsLoggedIn())
{
if (isset($_SESSION['lastActivity']) && ((time() - $_SESSION['lastActivity']) > 600 ))
self::EndSession();
else
$_SESSION['lastActivity'] = time();
}
//if logged in after timeout check
if (self::IsLoggedIn())
{
$mode = trim(@$_GET['m']);
if ($mode != '')
$mode = strtolower($mode);
if ($mode != '') //we've passed a special input 'mode'
{
switch ($mode)
{
case 'g': //player making a guess
$guess = trim(@$_GET['g']);
if ($guess != '')
{
$guess = self::FromAlias(strtolower($guess));
if (strlen($guess) == 1 && stripos($_SESSION['guessedLetters'],$guess) === false) //valid
{
$_SESSION['guessedLetters'] .= $guess;
if (stripos($_SESSION['word'],$guess) === false) //wrong guess
$_SESSION['gameState']++;
else
$_SESSION['lettersLeft'] -= substr_count($_SESSION['word'] ,$guess);
}
}
break;
case 'r': //forced reset of session
self::EndSession();
break;
}
}
}
//we forced a reset
if (!self::IsLoggedIn())
{
self::RegenerateSession();
header ('Location: '.self::$pageUrl);
}
}
//is the game finished
public static function IsGameFinished()
{
return $_SESSION['gameState'] >= self::$gameStates || (isset($_SESSION['lettersLeft']) && $_SESSION['lettersLeft'] <= 0);
}
//check if we won (true == win)
public static function GameResult()
{
return $_SESSION['gameState'] < self::$gameStates && $_SESSION['lettersLeft'] == 0;
}
//add any page-close stuff here
public static function EndPage()
{
}
//terminates the session
private static function EndSession()
{
//$_SESSION = array(); //destroy all of the session variables
//session_destroy();
//session_unset();
self::RegenerateSession();
return true;
}
//convert a character to it's alias
private static function ToAlias($letter)
{
return array_key_exists($letter, self::$alphabetAliases) ? self::$alphabetAliases[$letter] : $letter;
}
//reduce an alias to it's corresponding character
private static function FromAlias($alias)
{
$key = array_search($alias, self::$alphabetAliases);
return $key === false ? $alias : $key;
}
//spit out the current word images based on game state
public static function PrintCurrentWord()
{
if (!self::IsLoggedIn())
return;
$finished = self::IsGameFinished();
for ($i = 0; $i < strlen($_SESSION['word']); $i++)
{
$letter = substr($_SESSION['word'],$i,1);
echo '<span class="';
if (!$finished && stripos($_SESSION['guessedLetters'], $letter) === false) //haven't guessed this yet
echo self::$underscores[rand(0,count(self::$underscores)-1)];
else //is a valid character that we've guessed already
echo self::ToAlias($letter);
echo '"></span>'."\n";
}
}
public static function PrintGameState() //debugging
{
echo "\n<!--\n";
echo "Word: ".$_SESSION['word']."\n";
echo "Letters guessed: ".$_SESSION['guessedLetters']."\n";
echo "Letters left: ".$_SESSION['lettersLeft']."\n";
echo "Game State: ".$_SESSION['gameState']."\n";
echo "-->\n";
}
//print out the keyboard buttons
public static function PrintKeyboard()
{
if (!self::IsLoggedIn())
return;
for ($i = 0; $i < strlen(self::$keyboardButtons); $i++)
{
$key = substr(self::$keyboardButtons,$i,1);
$keyAlias = self::ToAlias($key);
if (stripos($_SESSION['guessedLetters'], $key) === false) //haven't guessed this yet
echo '<a class="'.$keyAlias.'" href="?m=g&g='.$keyAlias.'"></a>';
else //we've guessed already
echo '<span class="'.$keyAlias.'"><img src="games/plank/images/alphabet/'.(stripos($_SESSION['word'], $key) === false?'wrong':'right').'.png" /></span>';
echo "\n";
}
}
}
?>
1 個解決方案
解決方案1
2 2013-10-22 10:13:34
一個常見的錯誤是這樣的任務：
$_SESSION = $data;
這將覆蓋任何以前存儲的信息。
更好的做法是使$_SESSION成為一個帶有命名索引的數組：
$_SESSION['somedata'] = $data;
現在，您只會覆蓋存儲在'somedata'字段中的數據。
破壞舊的會話，使新的會話，但php仍指舊的會話
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