[Summary view] [Print] [Text view]

   1  <?php
   2  
   3  namespace OAuth\Common;
   4  
   5  /**
   6   * PSR-0 Autoloader
   7   *
   8   * @author ieter Hordijk <info@pieterhordijk.com>
   9   */
  10  class AutoLoader
  11  {
  12      /**
  13       * @var string The namespace prefix for this instance.
  14       */
  15      protected $namespace = '';
  16  
  17      /**
  18       * @var string The filesystem prefix to use for this instance
  19       */
  20      protected $path = '';
  21  
  22      /**
  23       * Build the instance of the autoloader
  24       *
  25       * @param string $namespace The prefixed namespace this instance will load
  26       * @param string $path      The filesystem path to the root of the namespace
  27       */
  28      public function __construct($namespace, $path)
  29      {
  30          $this->namespace = ltrim($namespace, '\\');
  31          $this->path      = rtrim($path, '/\\') . DIRECTORY_SEPARATOR;
  32      }
  33  
  34      /**
  35       * Try to load a class
  36       *
  37       * @param string $class The class name to load
  38       *
  39       * @return boolean If the loading was successful
  40       */
  41      public function load($class)
  42      {
  43          $class = ltrim($class, '\\');
  44  
  45          if (strpos($class, $this->namespace) === 0) {
  46              $nsparts   = explode('\\', $class);
  47              $class     = array_pop($nsparts);
  48              $nsparts[] = '';
  49              $path      = $this->path . implode(DIRECTORY_SEPARATOR, $nsparts);
  50              $path     .= str_replace('_', DIRECTORY_SEPARATOR, $class) . '.php';
  51  
  52              if (file_exists($path)) {
  53                  require $path;
  54  
  55                  return true;
  56              }
  57          }
  58  
  59          return false;
  60      }
  61  
  62      /**
  63       * Register the autoloader to PHP
  64       *
  65       * @return boolean The status of the registration
  66       */
  67      public function register()
  68      {
  69          return spl_autoload_register(array($this, 'load'));
  70      }
  71  
  72      /**
  73       * Unregister the autoloader to PHP
  74       *
  75       * @return boolean The status of the unregistration
  76       */
  77      public function unregister()
  78      {
  79          return spl_autoload_unregister(array($this, 'load'));
  80      }
  81  }