PHP - syntax error, unexpected token "public", expecting "::" in C:\xampp\htdocs\simple-invoice\pdf\_class

<?php

/**
* HTML2PDF Librairy - HTML2PDF Locale
*
* HTML => PDF convertor
* distributed under the LGPL License
*
* @author Laurent MINGUET <[email protected]>
* @version 4.03
*/

class HTML2PDF_locale
{
/**
* code of the current used locale
* @var string
*/
static protected $_code = null;

/**
* texts of the current used locale
* @var array
*/
static protected $_list = array();

/**
* directory where locale files are
* @var string
*/
static protected $_directory = null;

/**
* load the locale
*
* @access public
* @param string $code
*/
static public function load($code)
{
if (self::$_directory===null) {
self::$_directory = dirname(dirname(__FILE__)).'/locale/';
}

// must be in lower case
$code = strtolower($code);

// must be [a-z-0-9]
if (!preg_match('/^([a-z0-9]+)$/isU', $code)) {
throw new HTML2PDF_exception(0, 'invalid language code ['.self::$_code.']');
}

// save the code
self::$_code = $code;

// get the name of the locale file
$file = self::$_directory.self::$_code.'.csv';

// the file must exist
if (!is_file($file)) {
throw new HTML2PDF_exception(0, 'language code ['.self::$_code.'] unknown. You can create the translation file ['.$file.'] and send it to the webmaster of html2pdf in order to integrate it into a future release');
}

// load the file
self::$_list = array();
$handle = fopen($file, 'r');
while (!feof($handle)) {
$line = fgetcsv($handle);
//if (count($line)!=2) continue;
//self::$_list[trim($line[0])] = trim($line[1]);

if (empty($line)===false)
{
if (count($line)!=2) continue;
self::$_list[trim($line[0])] = trim($line[1]);
}

fclose($handle);
}

/**
* clean the locale
*
* @access public static
*/
static public function clean()
{
self::$_code = null;
self::$_list = array();
}

/**
* get a text
*
* @access public static
* @param string $key
* @return string
*/
static public function get($key, $default='######')
{
return (isset(self::$_list[$key]) ? self::$_list[$key] : $default);
}
}