function PHPGraphLibPie($width = '', $height = '') { PHPGraphLib::PHPGraphLib($width, $height); }
function PHPGraphLibPie($width = '', $height = '', $output_file = NULL) { PHPGraphLib::PHPGraphLib($width, $height, $output_file); }
function PHPGraphLibStacked($width = '', $height = '') { PHPGraphLib::PHPGraphLib($width, $height); }