system\classes\Kohana\Core.php 核心文件

<?php defined('SYSPATH') OR die('No direct script access.');
/**
* Contains the most low-level helpers methods in Kohana:
*
* - Environment initialization
* - Locating files within the cascading filesystem
* - Auto-loading and transparent extension of classes
* - Variable and path debugging
*
* @package    Kohana
* @category   Base
* @author     Kohana Team
* @copyright  (c) 2008-2012 Kohana Team
* @license    http://kohanaframework.org/license */
class Kohana_Core {

// Release version and codename
const VERSION  = '3.3.0';
const CODENAME = 'badius';

// Common environment type constants for consistency and convenience
const PRODUCTION  = 10;
const STAGING     = 20;
const TESTING     = 30;
const DEVELOPMENT = 40;

// Security check that is added to all generated PHP files
const FILE_SECURITY = '<?php defined(\'SYSPATH\') OR die(\'No direct script access.\');';

// Format of cache files: header, cache name, and data
const FILE_CACHE = ":header \n\n// :name\n\n:data\n";

/**
* @var  string  Current environment name
*/
public static $environment = Kohana::DEVELOPMENT;

/**
* @var  boolean  True if Kohana is running on windows
*/
public static $is_windows = FALSE;

/**
* @var  boolean  True if [magic quotes](http://php.net/manual/en/security.magicquotes.php) is enabled.
*/
public static $magic_quotes = FALSE;

/**
* @var  boolean  TRUE if PHP safe mode is on
*/
public static $safe_mode = FALSE;

/**
* @var  string
*/
public static $content_type = 'text/html';

/**
* @var  string  character set of input and output
*/
public static $charset = 'utf-8';

/**
* @var  string  the name of the server Kohana is hosted upon
*/
public static $server_name = '';

/**
* @var  array   list of valid host names for this instance
*/
public static $hostnames = array();

/**
* @var  string  base URL to the application
*/
public static $base_url = '/';

/**
* @var  string  Application index file, added to links generated by Kohana. Set by [Kohana::init]
*/
public static $index_file = 'index.php';

/**
* @var  string  Cache directory, used by [Kohana::cache]. Set by [Kohana::init]
*/
public static $cache_dir;

/**
* @var  integer  Default lifetime for caching, in seconds, used by [Kohana::cache]. Set by [Kohana::init]
*/
public static $cache_life = 60;

/**
* @var  boolean  Whether to use internal caching for [Kohana::find_file], does not apply to [Kohana::cache]. Set by [Kohana::init]
*/
public static $caching = FALSE;

/**
* @var  boolean  Whether to enable [profiling](kohana/profiling). Set by [Kohana::init]
*/
public static $profiling = TRUE;

/**
* @var  boolean  Enable Kohana catching and displaying PHP errors and exceptions. Set by [Kohana::init]
*/
public static $errors = TRUE;

/**
* @var  array  Types of errors to display at shutdown
*/
public static $shutdown_errors = array(E_PARSE, E_ERROR, E_USER_ERROR);

/**
* @var  boolean  set the X-Powered-By header
*/
public static $expose = FALSE;

/**
* @var  Log  logging object
*/
public static $log;

/**
* @var  Config  config object
*/
public static $config;

/**
* @var  boolean  Has [Kohana::init] been called?
*/
protected static $_init = FALSE;

/**
* @var  array   Currently active modules
*/
protected static $_modules = array();

/**
* @var  array   Include paths that are used to find files
*/
protected static $_paths = array(APPPATH, SYSPATH);

/**
* @var  array   File path cache, used when caching is true in [Kohana::init]
*/
protected static $_files = array();

/**
* @var  boolean  Has the file path cache changed during this execution?  Used internally when when caching is true in [Kohana::init]
*/
protected static $_files_changed = FALSE;

/**
* Initializes the environment:
*
* - Disables register_globals and magic_quotes_gpc
* - Determines the current environment
* - Set global settings
* - Sanitizes GET, POST, and COOKIE variables
* - Converts GET, POST, and COOKIE variables to the global character set
*
* The following settings can be set:
*
* Type      | Setting    | Description                                    | Default Value
* ----------|------------|------------------------------------------------|---------------
* `string`  | base_url   | The base URL for your application.  This should be the *relative* path from your DOCROOT to your `index.php` file, in other words, if Kohana is in a subfolder, set this to the subfolder name, otherwise leave it as the default.  **The leading slash is required**, trailing slash is optional.   | `"/"`
* `string`  | index_file | The name of the [front controller](http://en.wikipedia.org/wiki/Front_Controller_pattern).  This is used by Kohana to generate relative urls like [HTML::anchor()] and [URL::base()]. This is usually `index.php`.  To [remove index.php from your urls](tutorials/clean-urls), set this to `FALSE`. | `"index.php"`
* `string`  | charset    | Character set used for all input and output    | `"utf-8"`
* `string`  | cache_dir  | Kohana's cache directory.  Used by [Kohana::cache] for simple internal caching, like [Fragments](kohana/fragments) and **\[caching database queries](this should link somewhere)**.  This has nothing to do with the [Cache module](cache). | `APPPATH."cache"`
* `integer` | cache_life | Lifetime, in seconds, of items cached by [Kohana::cache]         | `60`
* `boolean` | errors     | Should Kohana catch PHP errors and uncaught Exceptions and show the `error_view`. See [Error Handling](kohana/errors) for more info. <br /> <br /> Recommended setting: `TRUE` while developing, `FALSE` on production servers. | `TRUE`
* `boolean` | profile    | Whether to enable the [Profiler](kohana/profiling). <br /> <br />Recommended setting: `TRUE` while developing, `FALSE` on production servers. | `TRUE`
* `boolean` | caching    | Cache file locations to speed up [Kohana::find_file].  This has nothing to do with [Kohana::cache], [Fragments](kohana/fragments) or the [Cache module](cache).  <br /> <br />  Recommended setting: `FALSE` while developing, `TRUE` on production servers. | `FALSE`
* `boolean` | expose     | Set the X-Powered-By header
*
* @throws  Kohana_Exception
* @param   array   $settings   Array of settings.  See above.
* @return  void
* @uses    Kohana::globals
* @uses    Kohana::sanitize
* @uses    Kohana::cache
* @uses    Profiler
*/
public static function init(array $settings = NULL)
{
if (Kohana::$_init)
{
// Do not allow execution twice
return;
}

// Kohana is now initialized
Kohana::$_init = TRUE;

if (isset($settings['profile']))
{
// Enable profiling
Kohana::$profiling = (bool) $settings['profile'];
}

// Start an output buffer
ob_start();

if (isset($settings['errors']))
{
// Enable error handling
Kohana::$errors = (bool) $settings['errors'];
}

if (Kohana::$errors === TRUE)
{
// Enable Kohana exception handling, adds stack traces and error source.
set_exception_handler(array('Kohana_Exception', 'handler'));

// Enable Kohana error handling, converts all PHP errors to exceptions.
set_error_handler(array('Kohana', 'error_handler'));
}

/**
* Enable xdebug parameter collection in development mode to improve fatal stack traces.
*/
if (Kohana::$environment == Kohana::DEVELOPMENT AND extension_loaded('xdebug'))
{
ini_set('xdebug.collect_params', 3);
}

// Enable the Kohana shutdown handler, which catches E_FATAL errors.
register_shutdown_function(array('Kohana', 'shutdown_handler'));

if (ini_get('register_globals'))
{
// Reverse the effects of register_globals
Kohana::globals();
}

if (isset($settings['expose']))
{
Kohana::$expose = (bool) $settings['expose'];
}

// Determine if we are running in a Windows environment
Kohana::$is_windows = (DIRECTORY_SEPARATOR === '\\');

// Determine if we are running in safe mode
Kohana::$safe_mode = (bool) ini_get('safe_mode');

if (isset($settings['cache_dir']))
{
if ( ! is_dir($settings['cache_dir']))
{
try
{
// Create the cache directory
mkdir($settings['cache_dir'], 0755, TRUE);

// Set permissions (must be manually set to fix umask issues)
chmod($settings['cache_dir'], 0755);
}
catch (Exception $e)
{
throw new Kohana_Exception('Could not create cache directory :dir',
array(':dir' => Debug::path($settings['cache_dir'])));
}
}

// Set the cache directory path
Kohana::$cache_dir = realpath($settings['cache_dir']);
}
else
{
// Use the default cache directory
Kohana::$cache_dir = APPPATH.'cache';
}

if ( ! is_writable(Kohana::$cache_dir))
{
throw new Kohana_Exception('Directory :dir must be writable',
array(':dir' => Debug::path(Kohana::$cache_dir)));
}

if (isset($settings['cache_life']))
{
// Set the default cache lifetime
Kohana::$cache_life = (int) $settings['cache_life'];
}

if (isset($settings['caching']))
{
// Enable or disable internal caching
Kohana::$caching = (bool) $settings['caching'];
}

if (Kohana::$caching === TRUE)
{
// Load the file path cache
Kohana::$_files = Kohana::cache('Kohana::find_file()');
}

if (isset($settings['charset']))
{
// Set the system character set
Kohana::$charset = strtolower($settings['charset']);
}

if (function_exists('mb_internal_encoding'))
{
// Set the MB extension encoding to the same character set
mb_internal_encoding(Kohana::$charset);
}

if (isset($settings['base_url']))
{
// Set the base URL
Kohana::$base_url = rtrim($settings['base_url'], '/').'/';
}

if (isset($settings['index_file']))
{
// Set the index file
Kohana::$index_file = trim($settings['index_file'], '/');
}

// Determine if the extremely evil magic quotes are enabled
Kohana::$magic_quotes = (version_compare(PHP_VERSION, '5.4') < 0 AND get_magic_quotes_gpc());

// Sanitize all request variables
$_GET    = Kohana::sanitize($_GET);
$_POST   = Kohana::sanitize($_POST);
$_COOKIE = Kohana::sanitize($_COOKIE);

// Load the logger if one doesn't already exist
if ( ! Kohana::$log instanceof Log)
{
Kohana::$log = Log::instance();
}

// Load the config if one doesn't already exist
if ( ! Kohana::$config instanceof Config)
{
Kohana::$config = new Config;
}
}

/**
* Cleans up the environment:
*
* - Restore the previous error and exception handlers
* - Destroy the Kohana::$log and Kohana::$config objects
*
* @return  void
*/
public static function deinit()
{
if (Kohana::$_init)
{
// Removed the autoloader
spl_autoload_unregister(array('Kohana', 'auto_load'));

if (Kohana::$errors)
{
// Go back to the previous error handler
restore_error_handler();

// Go back to the previous exception handler
restore_exception_handler();
}

// Destroy objects created by init
Kohana::$log = Kohana::$config = NULL;

// Reset internal storage
Kohana::$_modules = Kohana::$_files = array();
Kohana::$_paths   = array(APPPATH, SYSPATH);

// Reset file cache status
Kohana::$_files_changed = FALSE;

// Kohana is no longer initialized
Kohana::$_init = FALSE;
}
}

/**
* Reverts the effects of the `register_globals` PHP setting by unsetting
* all global varibles except for the default super globals (GPCS, etc),
* which is a [potential security hole.][ref-wikibooks]
*
* This is called automatically by [Kohana::init] if `register_globals` is
* on.
*
*
* [ref-wikibooks]: http://en.wikibooks.org/wiki/PHP_Programming/Register_Globals *
* @return  void
*/
public static function globals()
{
if (isset($_REQUEST['GLOBALS']) OR isset($_FILES['GLOBALS']))
{
// Prevent malicious GLOBALS overload attack
echo "Global variable overload attack detected! Request aborted.\n";

// Exit with an error status
exit(1);
}

// Get the variable names of all globals
$global_variables = array_keys($GLOBALS);

// Remove the standard global variables from the list
$global_variables = array_diff($global_variables, array(
'_COOKIE',
'_ENV',
'_GET',
'_FILES',
'_POST',
'_REQUEST',
'_SERVER',
'_SESSION',
'GLOBALS',
));

foreach ($global_variables as $name)
{
// Unset the global variable, effectively disabling register_globals
unset($GLOBALS[$name]);
}
}

/**
* Recursively sanitizes an input variable:
*
* - Strips slashes if magic quotes are enabled
* - Normalizes all newlines to LF
*
* @param   mixed   $value  any variable
* @return  mixed   sanitized variable
*/
public static function sanitize($value)
{
if (is_array($value) OR is_object($value))
{
foreach ($value as $key => $val)
{
// Recursively clean each value
$value[$key] = Kohana::sanitize($val);
}
}
elseif (is_string($value))
{
if (Kohana::$magic_quotes === TRUE)
{
// Remove slashes added by magic quotes
$value = stripslashes($value);
}

if (strpos($value, "\r") !== FALSE)
{
// Standardize newlines
$value = str_replace(array("\r\n", "\r"), "\n", $value);
}
}

return $value;
}

/**
* Provides auto-loading support of classes that follow Kohana's [class
* naming conventions](kohana/conventions#class-names-and-file-location).
* See [Loading Classes](kohana/autoloading) for more information.
*
*     // Loads classes/My/Class/Name.php
*     Kohana::auto_load('My_Class_Name');
*
* or with a custom directory:
*
*     // Loads vendor/My/Class/Name.php
*     Kohana::auto_load('My_Class_Name', 'vendor');
*
* You should never have to call this function, as simply calling a class
* will cause it to be called.
*
* This function must be enabled as an autoloader in the bootstrap:
*
*     spl_autoload_register(array('Kohana', 'auto_load'));
*
* @param   string  $class      Class name
* @param   string  $directory  Directory to load from
* @return  boolean
*/
public static function auto_load($class, $directory = 'classes')
{
// Transform the class name according to PSR-0
$class     = ltrim($class, '\\');
$file      = '';
$namespace = '';

if ($last_namespace_position = strripos($class, '\\'))
{
$namespace = substr($class, 0, $last_namespace_position);
$class     = substr($class, $last_namespace_position + 1);
$file      = str_replace('\\', DIRECTORY_SEPARATOR, $namespace).DIRECTORY_SEPARATOR;
}

$file .= str_replace('_', DIRECTORY_SEPARATOR, $class);

if ($path = Kohana::find_file($directory, $file))
{
// Load the class file
require $path;

// Class has been found
return TRUE;
}

// Class is not in the filesystem
return FALSE;
}

/**
* Provides auto-loading support of classes that follow Kohana's old class
* naming conventions.
*
* This is included for compatibility purposes with older modules.
*
* @param   string  $class      Class name
* @param   string  $directory  Directory to load from
* @return  boolean
*/
public static function auto_load_lowercase($class, $directory = 'classes')
{
// Transform the class name into a path
$file = str_replace('_', DIRECTORY_SEPARATOR, strtolower($class));

if ($path = Kohana::find_file($directory, $file))
{
// Load the class file
require $path;

// Class has been found
return TRUE;
}

// Class is not in the filesystem
return FALSE;
}

/**
* Changes the currently enabled modules. Module paths may be relative
* or absolute, but must point to a directory:
*
*     Kohana::modules(array('modules/foo', MODPATH.'bar'));
*
* @param   array   $modules    list of module paths
* @return  array   enabled modules
*/
public static function modules(array $modules = NULL)
{
if ($modules === NULL)
{
// Not changing modules, just return the current set
return Kohana::$_modules;
}

// Start a new list of include paths, APPPATH first
$paths = array(APPPATH);

foreach ($modules as $name => $path)
{
if (is_dir($path))
{
// Add the module to include paths
$paths[] = $modules[$name] = realpath($path).DIRECTORY_SEPARATOR;
}
else
{
// This module is invalid, remove it
throw new Kohana_Exception('Attempted to load an invalid or missing module \':module\' at \':path\'', array(
':module' => $name,
':path'   => Debug::path($path),
));
}
}

// Finish the include paths by adding SYSPATH
$paths[] = SYSPATH;

// Set the new include paths
Kohana::$_paths = $paths;

// Set the current module list
Kohana::$_modules = $modules;

foreach (Kohana::$_modules as $path)
{
$init = $path.'init'.EXT;

if (is_file($init))
{
// Include the module initialization file once
require_once $init;
}
}

return Kohana::$_modules;
}

/**
* Returns the the currently active include paths, including the
* application, system, and each module's path.
*
* @return  array
*/
public static function include_paths()
{
return Kohana::$_paths;
}

/**
* Searches for a file in the [Cascading Filesystem](kohana/files), and
* returns the path to the file that has the highest precedence, so that it
* can be included.
*
* When searching the "config", "messages", or "i18n" directories, or when
* the `$array` flag is set to true, an array of all the files that match
* that path in the [Cascading Filesystem](kohana/files) will be returned.
* These files will return arrays which must be merged together.
*
* If no extension is given, the default extension (`EXT` set in
* `index.php`) will be used.
*
*     // Returns an absolute path to views/template.php
*     Kohana::find_file('views', 'template');
*
*     // Returns an absolute path to media/css/style.css
*     Kohana::find_file('media', 'css/style', 'css');
*
*     // Returns an array of all the "mimes" configuration files
*     Kohana::find_file('config', 'mimes');
*
* @param   string  $dir    directory name (views, i18n, classes, extensions, etc.)
* @param   string  $file   filename with subdirectory
* @param   string  $ext    extension to search for
* @param   boolean $array  return an array of files?
* @return  array   a list of files when $array is TRUE
* @return  string  single file path
*/
public static function find_file($dir, $file, $ext = NULL, $array = FALSE)
{
if ($ext === NULL)
{
// Use the default extension
$ext = EXT;
}
elseif ($ext)
{
// Prefix the extension with a period
$ext = ".{$ext}";
}
else
{
// Use no extension
$ext = '';
}

// Create a partial path of the filename
$path = $dir.DIRECTORY_SEPARATOR.$file.$ext;

if (Kohana::$caching === TRUE AND isset(Kohana::$_files[$path.($array ? '_array' : '_path')]))
{
// This path has been cached
return Kohana::$_files[$path.($array ? '_array' : '_path')];
}

if (Kohana::$profiling === TRUE AND class_exists('Profiler', FALSE))
{
// Start a new benchmark
$benchmark = Profiler::start('Kohana', __FUNCTION__);
}

if ($array OR $dir === 'config' OR $dir === 'i18n' OR $dir === 'messages')
{
// Include paths must be searched in reverse
$paths = array_reverse(Kohana::$_paths);

// Array of files that have been found
$found = array();

foreach ($paths as $dir)
{
if (is_file($dir.$path))
{
// This path has a file, add it to the list
$found[] = $dir.$path;
}
}
}
else
{
// The file has not been found yet
$found = FALSE;

foreach (Kohana::$_paths as $dir)
{
if (is_file($dir.$path))
{
// A path has been found
$found = $dir.$path;

// Stop searching
break;
}
}
}

if (Kohana::$caching === TRUE)
{
// Add the path to the cache
Kohana::$_files[$path.($array ? '_array' : '_path')] = $found;

// Files have been changed
Kohana::$_files_changed = TRUE;
}

if (isset($benchmark))
{
// Stop the benchmark
Profiler::stop($benchmark);
}

return $found;
}

/**
* Recursively finds all of the files in the specified directory at any
* location in the [Cascading Filesystem](kohana/files), and returns an
* array of all the files found, sorted alphabetically.
*
*     // Find all view files.
*     $views = Kohana::list_files('views');
*
* @param   string  $directory  directory name
* @param   array   $paths      list of paths to search
* @return  array
*/
public static function list_files($directory = NULL, array $paths = NULL)
{
if ($directory !== NULL)
{
// Add the directory separator
$directory .= DIRECTORY_SEPARATOR;
}

if ($paths === NULL)
{
// Use the default paths
$paths = Kohana::$_paths;
}

// Create an array for the files
$found = array();

foreach ($paths as $path)
{
if (is_dir($path.$directory))
{
// Create a new directory iterator
$dir = new DirectoryIterator($path.$directory);

foreach ($dir as $file)
{
// Get the file name
$filename = $file->getFilename();

if ($filename[0] === '.' OR $filename[strlen($filename)-1] === '~')
{
// Skip all hidden files and UNIX backup files
continue;
}

// Relative filename is the array key
$key = $directory.$filename;

if ($file->isDir())
{
if ($sub_dir = Kohana::list_files($key, $paths))
{
if (isset($found[$key]))
{
// Append the sub-directory list
$found[$key] += $sub_dir;
}
else
{
// Create a new sub-directory list
$found[$key] = $sub_dir;
}
}
}
else
{
if ( ! isset($found[$key]))
{
// Add new files to the list
$found[$key] = realpath($file->getPathName());
}
}
}
}
}

// Sort the results alphabetically
ksort($found);

return $found;
}

/**
* Loads a file within a totally empty scope and returns the output:
*
*     $foo = Kohana::load('foo.php');
*
* @param   string  $file
* @return  mixed
*/
public static function load($file)
{
return include $file;
}

/**
* Provides simple file-based caching for strings and arrays:
*
*     // Set the "foo" cache
*     Kohana::cache('foo', 'hello, world');
*
*     // Get the "foo" cache
*     $foo = Kohana::cache('foo');
*
* All caches are stored as PHP code, generated with [var_export][ref-var].
* Caching objects may not work as expected. Storing references or an
* object or array that has recursion will cause an E_FATAL.
*
* The cache directory and default cache lifetime is set by [Kohana::init]
*
* [ref-var]: http://php.net/var_export *
* @throws  Kohana_Exception
* @param   string  $name       name of the cache
* @param   mixed   $data       data to cache
* @param   integer $lifetime   number of seconds the cache is valid for
* @return  mixed    for getting
* @return  boolean  for setting
*/
public static function cache($name, $data = NULL, $lifetime = NULL)
{
// Cache file is a hash of the name
$file = sha1($name).'.txt';

// Cache directories are split by keys to prevent filesystem overload
$dir = Kohana::$cache_dir.DIRECTORY_SEPARATOR.$file[0].$file[1].DIRECTORY_SEPARATOR;

if ($lifetime === NULL)
{
// Use the default lifetime
$lifetime = Kohana::$cache_life;
}

if ($data === NULL)
{
if (is_file($dir.$file))
{
if ((time() - filemtime($dir.$file)) < $lifetime)
{
// Return the cache
try
{
return unserialize(file_get_contents($dir.$file));
}
catch (Exception $e)
{
// Cache is corrupt, let return happen normally.
}
}
else
{
try
{
// Cache has expired
unlink($dir.$file);
}
catch (Exception $e)
{
// Cache has mostly likely already been deleted,
// let return happen normally.
}
}
}

// Cache not found
return NULL;
}

if ( ! is_dir($dir))
{
// Create the cache directory
mkdir($dir, 0777, TRUE);

// Set permissions (must be manually set to fix umask issues)
chmod($dir, 0777);
}

// Force the data to be a string
$data = serialize($data);

try
{
// Write the cache
return (bool) file_put_contents($dir.$file, $data, LOCK_EX);
}
catch (Exception $e)
{
// Failed to write cache
return FALSE;
}
}

/**
* Get a message from a file. Messages are arbitary strings that are stored
* in the `messages/` directory and reference by a key. Translation is not
* performed on the returned values.  See [message files](kohana/files/messages)
* for more information.
*
*     // Get "username" from messages/text.php
*     $username = Kohana::message('text', 'username');
*
* @param   string  $file       file name
* @param   string  $path       key path to get
* @param   mixed   $default    default value if the path does not exist
* @return  string  message string for the given path
* @return  array   complete message list, when no path is specified
* @uses    Arr::merge
* @uses    Arr::path
*/
public static function message($file, $path = NULL, $default = NULL)
{
static $messages;

if ( ! isset($messages[$file]))
{
// Create a new message list
$messages[$file] = array();

if ($files = Kohana::find_file('messages', $file))
{
foreach ($files as $f)
{
// Combine all the messages recursively
$messages[$file] = Arr::merge($messages[$file], Kohana::load($f));
}
}
}

if ($path === NULL)
{
// Return all of the messages
return $messages[$file];
}
else
{
// Get a message using the path
return Arr::path($messages[$file], $path, $default);
}
}

/**
* PHP error handler, converts all errors into ErrorExceptions. This handler
* respects error_reporting settings.
*
* @throws  ErrorException
* @return  TRUE
*/
public static function error_handler($code, $error, $file = NULL, $line = NULL)
{
if (error_reporting() & $code)
{
// This error is not suppressed by current error reporting settings
// Convert the error into an ErrorException
throw new ErrorException($error, $code, 0, $file, $line);
}

// Do not execute the PHP error handler
return TRUE;
}

/**
* Catches errors that are not caught by the error handler, such as E_PARSE.
*
* @uses    Kohana_Exception::handler
* @return  void
*/
public static function shutdown_handler()
{
if ( ! Kohana::$_init)
{
// Do not execute when not active
return;
}

try
{
if (Kohana::$caching === TRUE AND Kohana::$_files_changed === TRUE)
{
// Write the file path cache
Kohana::cache('Kohana::find_file()', Kohana::$_files);
}
}
catch (Exception $e)
{
// Pass the exception to the handler
Kohana_Exception::handler($e);
}

if (Kohana::$errors AND $error = error_get_last() AND in_array($error['type'], Kohana::$shutdown_errors))
{
// Clean the output buffer
ob_get_level() AND ob_clean();

// Fake an exception for nice debugging
Kohana_Exception::handler(new ErrorException($error['message'], $error['type'], 0, $error['file'], $error['line']));

// Shutdown now to avoid a "death loop"
exit(1);
}
}

/**
* Generates a version string based on the variables defined above.
*
* @return string
*/
public static function version()
{
return 'Kohana Framework '.Kohana::VERSION.' ('.Kohana::CODENAME.')';
}

} // End Kohana