YuCheng Hu
1ec191d88b
+YUCHENG HU+ git-svn-id: https://svn.code.sf.net/p/hawebs/svn@423 a2543c7e-f6e9-4f8a-8bff-1ffc34733512
98 lines
2.0 KiB
PHP
98 lines
2.0 KiB
PHP
<?php
|
|
/**
|
|
* Piwik - Open source web analytics
|
|
*
|
|
* @link http://piwik.org
|
|
* @license http://www.gnu.org/licenses/gpl-3.0.html Gpl v3 or later
|
|
* @version $Id: Loader.php 1572 2009-11-06 06:35:10Z vipsoft $
|
|
*
|
|
* @category Piwik
|
|
* @package Piwik
|
|
*/
|
|
|
|
/**
|
|
* Piwik auto loader
|
|
*
|
|
* @package Piwik
|
|
*/
|
|
class Piwik_Loader
|
|
{
|
|
// our class search path; current directory is intentionally excluded
|
|
protected static $dirs = array( '/core/', '/libs/', '/plugins/' );
|
|
|
|
/**
|
|
* Get class file name
|
|
*
|
|
* @param string $class Class name
|
|
* @return string Class file name
|
|
*/
|
|
protected static function getClassFileName($class)
|
|
{
|
|
$class = str_replace('_', '/', $class);
|
|
|
|
if($class == 'Piwik')
|
|
{
|
|
return $class;
|
|
}
|
|
|
|
if(substr($class, 0, 6) == 'Piwik/')
|
|
{
|
|
return substr($class, 6);
|
|
}
|
|
|
|
return $class;
|
|
}
|
|
|
|
/**
|
|
* Load class by name
|
|
*
|
|
* @param string $class Class name
|
|
* @throws exception if class cannot be loaded
|
|
*/
|
|
public static function autoload($class)
|
|
{
|
|
$classPath = self::getClassFileName($class);
|
|
while(!empty($classPath))
|
|
{
|
|
// auto-discover class location
|
|
for($i = 0; $i < count(self::$dirs); $i++)
|
|
{
|
|
$path = PIWIK_INCLUDE_PATH . self::$dirs[$i] . $classPath . '.php';
|
|
if(file_exists($path))
|
|
{
|
|
require_once $path; // prefixed by PIWIK_INCLUDE_PATH
|
|
if(class_exists($class, false) || interface_exists($class, false))
|
|
{
|
|
return;
|
|
}
|
|
}
|
|
}
|
|
|
|
// truncate to find file with multiple class definitions
|
|
$lastSlash = strrpos($classPath, '/');
|
|
$classPath = ($lastSlash === false) ? '' : substr($classPath, 0, $lastSlash);
|
|
}
|
|
throw new Exception("$class could not be autoloaded.");
|
|
}
|
|
}
|
|
|
|
// Note: only one __autoload per PHP instance
|
|
if(function_exists('spl_autoload_register'))
|
|
{
|
|
// use the SPL autoload stack
|
|
spl_autoload_register(array('Piwik_Loader', 'autoload'));
|
|
|
|
// preserve any existing __autoload
|
|
if(function_exists('__autoload'))
|
|
{
|
|
spl_auto_register('__autoload');
|
|
}
|
|
}
|
|
else
|
|
{
|
|
function __autoload($class)
|
|
{
|
|
Piwik_Loader::autoload($class);
|
|
}
|
|
}
|