original_string: protected function _readFile($source)
      {
          $data = '';
          if (is_file($source) && is_readable($source)) {
              $data = @file_get_contents($source);
              if ($data === false) {
                  throw new Mage_Exception("Can't get contents from: " . $source);
              }
          }
          return $data;
      }
code: protected function _readFile($source)
      {
          $data = '';
          if (is_file($source) && is_readable($source)) {
              $data = @file_get_contents($source);
              if ($data === false) {
                  throw new Mage_Exception("Can't get contents from: " . $source);
              }
          }
          return $data;
      }
code_tokens: protected function _readFile ( $ source ) { $ data = '' ; if ( is_file ( $ source ) && is_readable ( $ source ) ) { $ data = @ file_get_contents ( $ source ) ; if ( $ data === false ) { throw new Mage_Exception ( "Can't get contents from: " . $ source ) ; } } return $ data ; }
docstring: Read data from file. If file can't be opened, throw to exception.
  
  @param string $source
  @return string
  @throws Mage_Exception
docstring_tokens: Read data from file . If file can t be opened throw to exception .