PHP unregister_globals函数代码示例

function run()
{
    unregister_globals();
    ini_set('session.cache_expire', 1);
    if (is_php_version_or_greater(4, 3, 0)) {
        ini_set('session.use_only_cookies', 1);
    }
    ini_set('session.cookie_lifetime', 1);
    @session_start();
    if (!isset($_SESSION['CREATED'])) {
        $_SESSION['CREATED'] = time();
    } elseif (time() - $_SESSION['CREATED'] > SESSION_LIFETIME_MINUTES * 60) {
        session_destroy();
        $_SESSION = array();
    }
    if (!isset($_SERVER)) {
        $_SERVER =& $HTTP_SERVER_VARS;
    }
    php_sapi_name() == 'cli' && die("This script should only be run by a web server.\n");
    $page = get_request_parameter('page');
    $host = get_request_parameter('host');
    $clear = get_request_parameter('clear');
    if (!empty($host)) {
        if ($host == 'ngd') {
            $_SESSION['not_go_daddy'] = 1;
        }
    }
    if (!empty($clear)) {
        unset($_SESSION['not_go_daddy']);
        unset($_SESSION['latest_version']);
        unset($_SESSION['loader_platform_info']);
        unset($_SESSION['loader_version_info']);
        unset($_SESSION['php_compilers_info']);
    }
    if (!array_key_exists('latest_version', $_SESSION) || !isset($_SESSION['latest_version']) || $_SESSION['latest_version'] === false) {
        $_SESSION['latest_version'] = retrieve_latest_version();
    }
    if (!empty($page)) {
        $fn = "{$page}_page";
        if (function_exists($fn)) {
            $fn();
        } else {
            default_page();
        }
    } else {
        $godaddy_root = GoDaddy_root();
        if (empty($godaddy_root)) {
            default_page();
        } else {
            GoDaddy_page($godaddy_root);
        }
    }
    @session_write_close();
    exit(0);
}

# A. Unsets all global variables set from a superglobal array
/**
 * @access private
 * @return void
 */
function unregister_globals()
{
    $args = func_get_args();
    foreach ($args as $k => $v) {
        if (array_key_exists($k, $GLOBALS)) {
            unset($GLOBALS[$k]);
        }
    }
}
if (ini_get('register_globals')) {
    unregister_globals('_POST', '_GET', '_COOKIE', '_REQUEST', '_SERVER', '_ENV', '_FILES');
    ini_set('register_globals', 0);
}
# B. removing magic quotes
/**
 * @access private
 * @param string $array
 * @return array
 */
function remove_magic_quotes($array)
{
    foreach ($array as $k => $v) {
        $array[$k] = is_array($v) ? remove_magic_quotes($v) : stripslashes($v);
    }
    return $array;
}

<?php

// Load the functions script
require PUN_ROOT . 'include/functions.php';
// Reverse the effect of register_globals
unregister_globals();
@(include PUN_ROOT . 'config.php');
// If PUN isn't defined, config.php is missing or corrupt
if (!defined('PUN')) {
    exit('The file \'config.php\' doesn\'t exist or is corrupt. Please run <a href="install.php">install.php</a> to install PunBB first.');
}
// Record the start time (will be used to calculate the generation time for the page)
list($usec, $sec) = explode(' ', microtime());
$pun_start = (double) $usec + (double) $sec;
// Make sure PHP reports all errors except E_NOTICE. PunBB supports E_ALL, but a lot of scripts it may interact with, do not.
error_reporting(E_ALL ^ E_NOTICE);
// Turn off magic_quotes_runtime
set_magic_quotes_runtime(0);
// Strip slashes from GET/POST/COOKIE (if magic_quotes_gpc is enabled)
if (get_magic_quotes_gpc()) {
    function stripslashes_array($array)
    {
        return is_array($array) ? array_map('stripslashes_array', $array) : stripslashes($array);
    }
    $_GET = stripslashes_array($_GET);
    $_POST = stripslashes_array($_POST);
    $_COOKIE = stripslashes_array($_COOKIE);
}
// Seed the random number generator
mt_srand((double) microtime() * 1000000);
// If a cookie name is not specified in config.php, we use the default (punbb_cookie)

function run()
{
    unregister_globals();
    if (is_php_version_or_greater(4, 3, 0)) {
        ini_set('session.use_only_cookies', 1);
    }
    $session_ok = @session_start();
    if (!defined('PHP_EOL')) {
        if (is_ms_windows()) {
            define('PHP_EOL', "\r\n");
        } else {
            define('PHP_EOL', "\n");
        }
    }
    if (!isset($_SESSION['CREATED'])) {
        $_SESSION['CREATED'] = time();
    } elseif (time() - $_SESSION['CREATED'] > SESSION_LIFETIME_MINUTES * 60) {
        clear_session();
    }
    if (!isset($_SERVER)) {
        $_SERVER =& $HTTP_SERVER_VARS;
    }
    php_sapi_name() == 'cli' && die("This script should only be run by a web server.\n");
    $page = get_request_parameter('page');
    $host = get_request_parameter('host');
    $clear = get_request_parameter('clear');
    $ini = get_request_parameter('ini');
    $timeout = get_request_parameter('timeout');
    if ($timeout) {
        $_SESSION['timing_out'] = 1;
        $_SESSION['initial_run'] = 0;
    }
    if (!empty($host)) {
        if ($host == 'ngd') {
            $_SESSION['not_go_daddy'] = 1;
        }
    }
    if (!empty($ini)) {
        $_SESSION['use_ini_method'] = 1;
    }
    if (!empty($clear)) {
        clear_session();
        unset($_SESSION['not_go_daddy']);
        unset($_SESSION['use_ini_method']);
        unset($_SESSION['server_type']);
    } else {
        $stype = get_request_parameter('stype');
        $hostprovider = get_request_parameter('hostprovider');
        $hosturl = get_request_parameter('hosturl');
        if (!empty($hostprovider)) {
            $_SESSION['hostprovider'] = $hostprovider;
            $_SESSION['hosturl'] = $hosturl;
        }
        $server_type = find_server_type($stype, false, true);
    }
    if ($session_ok && !$timeout && !isset($_SESSION['initial_run']) && empty($page)) {
        $_SESSION['initial_run'] = 1;
        initial_page();
        @session_write_close();
        exit;
    } else {
        $_SESSION['initial_run'] = 0;
    }
    if (empty($_SESSION['server_type'])) {
        $_SESSION['server_type'] = SERVER_UNKNOWN;
    }
    if (empty($page) || !function_exists($page . "_page")) {
        $page = get_default_page();
    }
    $fn = "{$page}_page";
    $fn();
    @session_write_close();
    exit(0);
}

function run()
{
    unregister_globals();
    if (is_php_version_or_greater(4,3,0)) {
        ini_set('session.use_only_cookies',1);
    }
    @session_start();
    if (!isset($_SESSION['CREATED'])) {
        $_SESSION['CREATED'] = time();
    } elseif (time() - $_SESSION['CREATED'] > SESSION_LIFETIME_MINUTES * 60) {
        $persist['not_go_daddy'] = empty($_SESSION['not_go_daddy'])?0:1;
        $persist['use_ini_method'] = empty($_SESSION['use_ini_method'])?0:1;
        $persist['server_type'] = empty($_SESSION['server_type'])?SERVER_UNKNOWN:$_SESSION['server_type'];
        session_destroy();
        $_SESSION = array();
        $_SESSION = $persist;
    }
    
    if (!isset($_SERVER)) $_SERVER =& $HTTP_SERVER_VARS;

    (php_sapi_name() == 'cli') && die("This script should only be run by a web server.\n");

    $page = get_request_parameter('page');
    $host = get_request_parameter('host');
    $clear = get_request_parameter('clear');
    $ini = get_request_parameter('ini');

    if (!empty($host)) {
        if ($host == 'ngd') {
            $_SESSION['not_go_daddy'] = 1;
        }
    }
    if (!empty($ini)) {
        $_SESSION['use_ini_method'] = 1;
    }

    if (!empty($clear)) {
        unset($_SESSION['latest_version']);
        unset($_SESSION['loader_platform_info']);
        unset($_SESSION['loader_version_info']);
        unset($_SESSION['php_compilers_info']);
        unset($_SESSION['not_go_daddy']);
        unset($_SESSION['use_ini_method']);
        unset($_SESSION['server_type']);
    }

    if (empty($_SESSION['latest_version'])) {
        $_SESSION['latest_version'] = retrieve_latest_version();
    }

    if (empty($_SESSION['server_type'])) {
        $_SESSION['server_type'] = SERVER_UNKNOWN;
    }

    if (!empty($page)) {
        $fn = "${page}_page";
        if (function_exists($fn)) {
            $fn();
        } else {
            default_page();
        }
    } else {
        $godaddy_root = GoDaddy_root();
        if (empty($godaddy_root)) {
            default_page();
        } else {
            GoDaddy_page($godaddy_root);
        }
    }
    @session_write_close();
    exit(0);
}