* $objPHPExcel->getActiveSheet()->getStyle('B2')->getFill()->applyFromArray( * array( * 'type' => PHPExcel_Style_Fill::FILL_GRADIENT_LINEAR, * 'rotation' => 0, * 'startcolor' => array( * 'rgb' => '000000' * ), * 'endcolor' => array( * 'argb' => 'FFFFFFFF' * ) * ) * ); *