public function realpath($hash) {
		$path = $this->decode($hash);
		return $this->stat($path) ? $path : false;
	}
public function realpath($hash) {
		$path = $this->decode($hash);
		return $this->stat($path) ? $path : false;
	}
public function realpath ( $ hash ) { $ path = $ this -> decode ( $ hash ) ; return $ this -> stat ( $ path ) ? $ path : false ; }
Return file real path if file exists

@param  string  $hash  file hash
@return string
@author Dmitry (dio) Levashov
Return file real path if file exists