设置字体样式

$objPHPExcel->getDefaultStyle()->getFont()->setName('微软雅黑');
$objPHPExcel->getDefaultStyle()->getFont()->setSize(11);

设置单元格内容及样式

$monthDate = $sheet->setCellValueExplicitByColumnAndRow($colIndex, 2, '');
$monthDate->getStyleByColumnAndRow($colIndex, $rowIndex)->getAlignment()
    ->setWrapText(true)
    ->setHorizontal(\PHPExcel_Style_Alignment::HORIZONTAL_CENTER)
    ->setVertical(\PHPExcel_Style_Alignment::VERTICAL_CENTER);
$monthDate->getColumnDimensionByColumn($col)->setWidth(5);

设置单元格背景颜色

$sheet->getStyleByColumnAndRow($colIndex, 2, $colIndex, 2)
    ->getFill()
    ->setFillType(\PHPExcel_Style_Fill::FILL_SOLID);
$sheet->getStyleByColumnAndRow($colIndex, 2, $colIndex, 2)
    ->getFill()
    ->getStartColor()
    ->setRGB('BEBEBE');

使用数组设置样式

$styleArray = array(
    'borders' => array(
        'allborders' => array(
            'style' => \PHPExcel_Style_Border::BORDER_THIN
        )
    )
);
$sheet->getStyleByColumnAndRow(0, 1, $colIndex, $rowIndex - 1)
    ->applyFromArray($styleArray);

合并单元格并填充内容

$sheet->mergeCellsByColumnAndRow(0, $rowIndex + 1, $colIndex, $rowIndex + 1)
    ->setCellValueByColumnAndRow(0, $rowIndex + 1, 'content');

设置所有单元格边框

$objPHPExcel->getActiveSheet()
    ->getStyle('A1:' . $objPHPExcel->getActiveSheet()->getHighestColumn() . ':' . ($objPHPExcel->getActiveSheet()->getHighestRow() - 1))
    ->applyFromArray($styleArray);

设置字体下划线

$sheet->getStyleByColumnAndRow(3, $rowIndex)
    ->getFont()
    ->setUnderline(true);

设置所有单元格自适应高度

foreach ($objPHPExcel->getActiveSheet()->getRowDimensions() as $rd) {
    $rd->setRowHeight(-1);
}