php excel怎么设置表格编码

<?php
require_once './PHPExcel/Classes/PHPExcel.php';
//创建一个EXCEL
$objPHPExcel = new PHPExcel(); 
//设置当前的sheet
$objPHPExcel->setActiveSheetIndex(0);
//设置sheet的name
$getActiveSheet = $objPHPExcel->getActiveSheet();
$getActiveSheet->setTitle('Sheet名称');
//设置单元格的值
$getActiveSheet->setCellValue('A1', '姓名');
$getActiveSheet->setCellValue('B1', '部门');
$getActiveSheet->setCellValue('C1', '工资');
//合并单元格
$getActiveSheet->mergeCells('C1:D1');//横向合并 纵向同理
//设置单元格填充颜色
$getActiveSheet->getStyle('A1')->getFill()->setFillType(PHPExcel_Style_Fill::FILL_SOLID);
$getActiveSheet->getStyle('A1')->getFill()->getStartColor()->setARGB('000099FF');
//设置字体样式
$getActiveSheet->setCellValue('A2', setMyFontStyle('张三'));
$getActiveSheet->setCellValue('B2', setMyFontStyle('开发部'));
$getActiveSheet->setCellValue('C2', setMyFontStyle('9999'));
//设置文字水平居左(HORIZONTAL_LEFT，默认)、中(HORIZONTAL_CENTER)、右(HORIZONTAL_RIGHT)
$getActiveSheet->getStyle('A1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
//设置文字垂直居中
$getActiveSheet->getStyle('A1')->getAlignment()->setVertical(PHPExcel_Style_Alignment::VERTICAL_CENTER);
//设置自适应宽度
$letter = ['A', 'B', 'C'];
for($z=0;$z<count($letter);$z++){
$getActiveSheet->getColumnDimension($letter[$z])->setAutoSize(true);
}
//设置固定宽度
$getActiveSheet->getColumnDimension('A')->setWidth(20);
//清除缓冲区，不加这句会报错
ob_end_clean();
//输出
header("Pragma: public");
header("Expires: 0");
header("Cache-Control:must-revalidate, post-check=0, pre-check=0");
header("Content-Type:application/force-download");
header("Content-Type:application/vnd.ms-execl");
header("Content-Type:application/octet-stream");
header("Content-Type:application/download");
header('Content-Type:text/html;Charset=utf-8;');
header('Content-Disposition:attachment;filename=表格.xlsx"');
header("Content-Transfer-Encoding:binary");
$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel, 'Excel2007');
$objWriter->save('php://output');
exit;
//设置字体样式
function setMyFontStyle($text){
$objRichText = new PHPExcel_RichText();
$objRichText->createText("");
$objPayable = $objRichText->createTextRun($text);
$objPayable->getFont()->setBold(true);
$objPayable->getFont()->setItalic(true);
$objPayable->getFont()->setColor( new PHPExcel_Style_Color(PHPExcel_Style_Color::COLOR_RED ) );
return $objRichText;
}
//解决导出中文乱码，按需使用
function gbkToUtf8($gbk){
$utf8 = iconv('GB2312', 'UTF-8', $gbk);
return $utf8;
}
//解决导出中文乱码，按需使用
function utf8ToGbk($utf8){
$gbk = iconv('UTF-8', 'GB2312', $utf8);
return $gbk;
}