Magento PHP 5.4 PDF invoice Zend error

Fatal error: Declaration of Zend_Pdf_FileParserDataSource_File::__construct() must be compatible with Zend_Pdf_FileParserDataSource::__construct() in /var/www/vhosts/website/httpdocs/includes/src/Zend_Pdf_FileParserDataSource_File.php on line 41

This an incompatibility issue between PHP Version 5.4.4 and zend Framwork .

Fixed it by change in this function lib/Zend/Pdf/FileParserDataSource.php.

change

abstract public function __construct();

to

abstract public function __construct($filePath);