phpexcel 导出数据耗时，求教

导出7000条数据耗时20秒。求教，我那里弄的不对了。

function  exportExcel($data_array,$array,$filename){			$letters_arr=array(			'1'=>'A','2'=>'B','3'=>'C','4'=>'D','5'=>'E',			'6'=>'F','7'=>'G','8'=>'H','9'=>'I','10'=>'J',			'11'=>'K','12'=>'L','13'=>'M','14'=>'N','15'=>'O',			'16'=>'P','17'=>'Q','18'=>'R','19'=>'S','20'=>'T',			'21'=>'U','22'=>'V','23'=>'W','24'=>'X','25'=>'Y',			'26'=>'Z','27'=>'AA','28'=>'AB','29'=>'AC','30'=>'AD',			'31'=>'AE','32'=>'AF','33'=>'AG','34'=>'AH','35'=>'AI',			'36'=>'AJ','37'=>'AK','38'=>'AL','39'=>'AM','40'=>'AN',			'41'=>'AO','42'=>'AP','43'=>'AQ','44'=>'AR','45'=>'AS',			'46'=>'AT','47'=>'AU','47'=>'AV','49'=>'AW','50'=>'AX',			'51'=>'AY','52'=>'AZ',			);			foreach($data_array as $data){				$a=array();				foreach($array as $k=>$v){									$a[]=$data[$k];				}				$dataArray[]=$a;			}		Vendor('Zend.Classes.PHPExcel');				$objPHPExcel = new PHPExcel();		$count=count($array);		$count_2=count($dataArray);		$count_2=$count_2+3;		//首行设置		$objPHPExcel->setActiveSheetIndex(0)				   ->setCellValue('A1',$filename);		$objPHPExcel->getActiveSheet()->getStyle('A1')->getFont()->setSize(15);		$objPHPExcel->getActiveSheet()->getStyle('A1')->getFont()->setBold(true);		$objPHPExcel->getActiveSheet()->mergeCells('A1:'.$letters_arr[$count].'1');		$objPHPExcel->getActiveSheet()->getStyle('A1:'.$letters_arr[$count].'1')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);		//载入数据		$objPHPExcel->getActiveSheet()->fromArray($array, NULL, 'A3');		$objPHPExcel->getActiveSheet()->fromArray($dataArray, NULL, 'A4');		//设置边框		$sharedStyle1 = new PHPExcel_Style();		$sharedStyle1->applyFromArray(				array('borders'=>array(						'left'=> array('style' => PHPExcel_Style_Border::BORDER_THIN),						'right'=>array('style' => PHPExcel_Style_Border::BORDER_THIN),						'top'=>array('style' => PHPExcel_Style_Border::BORDER_THIN),						'bottom'=>array('style' => PHPExcel_Style_Border::BORDER_THIN)						)						)						);		$objPHPExcel->getActiveSheet()->setSharedStyle($sharedStyle1,'A3:'.$letters_arr[$count].$count_2);		 //设置表头填充颜色 		$objStyleA3 = $objPHPExcel->getActiveSheet()->getStyle('A3:'.$letters_arr[$count].'3');		$objStyleA3 = $objStyleA3->getFill();  		$objStyleA3->setFillType(PHPExcel_Style_Fill::FILL_SOLID);		$objStyleA3->getStartColor()->setARGB('FFFFBB');		header('Content-Type: application/vnd.ms-excel');		header('Content-Disposition: attachment;filename="'.$filename.'"');		header('Cache-Control: max-age=0');		$objWriter = PHPExcel_IOFactory::createWriter($objPHPExcel,'Excel5');		$objWriter->save('php://output');		exit;

回复讨论(解决方案)

1、试试不要用getActiveSheet()，改成：
$objSheet = $objPHPExcel->getSheet(0);
$objSheet->……
2、如果还是比较慢，测试一下不要用fromArray()，改用循环单元格来插入数据
希望能有所帮助。