phpExcel数据内存溢出解决办法

作者：袖梨 2022-11-14

先看实例

代码如下 复制代码

require_once 'PHPExcel.php';
require_once 'PHPExcel/Writer/Excel5.php';
require_once("..includemysqlconn.php");
$sdate=$_POST["sdate"];//接受传递过来的生成时间段
$edate=$_POST["edate"];
//$sdate='2009-01-01';
//$edate='2009-04-01';
$cancel_time=date("YmdHis");

$data=new MysqlConn();
$data->connect();
$sql="select * from employee_addminus where (oper_time between '$sdate' and '$edate') and isCanceled=0";

// 创建一个处理对象实例
$objExcel = new PHPExcel();

// 创建文件格式写入对象实例, uncomment
$objWriter = new PHPExcel_Writer_Excel5($objExcel);

//设置文档基本属性
$objProps = $objExcel->getProperties();
$objProps->setCreator("章贡区医疗保险局");
$objProps->setLastModifiedBy("章贡区医疗保险局");
$objProps->setTitle("章贡区医疗保险局职工月增减变动报表");
$objProps->setSubject("章贡区医疗保险局职工月增减变动报表");
$objProps->setDescription("章贡区医疗保险局职工月增减变动报表");
$objProps->setKeywords("章贡区医疗保险局职工月增减变动报表");
$objProps->setCategory("变动报表");

//*************************************
//设置当前的sheet索引，用于后续的内容操作。
//一般只有在使用多个sheet的时候才需要显示调用。
//缺省情况下，PHPExcel会自动创建第一个sheet被设置SheetIndex=0
$objExcel->setActiveSheetIndex(0);
$objActSheet = $objExcel->getActiveSheet();

//设置当前活动sheet的名称
$objActSheet->setTitle('月增减变动报表');

//*************************************
//
//设置宽度，这个值和EXCEL里的不同，不知道是什么单位，略小于EXCEL中的宽度
$objActSheet->getColumnDimension('A')->setWidth(20);
$objActSheet->getColumnDimension('B')->setWidth(10);
$objActSheet->getColumnDimension('C')->setWidth(6);
$objActSheet->getColumnDimension('D')->setWidth(20);
$objActSheet->getColumnDimension('E')->setWidth(12);
$objActSheet->getColumnDimension('F')->setWidth(10);
$objActSheet->getColumnDimension('G')->setWidth(20);
$objActSheet->getColumnDimension('H')->setWidth(18);
$objActSheet->getColumnDimension('I')->setWidth(12);
$objActSheet->getColumnDimension('J')->setWidth(8);
$objActSheet->getColumnDimension('K')->setWidth(8);
$objActSheet->getColumnDimension('L')->setWidth(12);
$objActSheet->getColumnDimension('M')->setWidth(10);
$objActSheet->getColumnDimension('N')->setWidth(10);

$objActSheet->getRowDimension(1)->setRowHeight(30);
$objActSheet->getRowDimension(2)->setRowHeight(27);
$objActSheet->getRowDimension(3)->setRowHeight(16);

//设置单元格的值
$objActSheet->setCellValue('A1', '章贡区医疗保险局职工月增减变动报表');
//合并单元格
$objActSheet->mergeCells('A1:N1');
//设置样式
$objStyleA1 = $objActSheet->getStyle('A1');
$objStyleA1->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objFontA1 = $objStyleA1->getFont();
$objFontA1->setName('宋体');
$objFontA1->setSize(18);
$objFontA1->setBold(true);

//设置居中对齐
$objActSheet->getStyle('A2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('B2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('C2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('D2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('E2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('F2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('G2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('H2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('I2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('J2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('K2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('L2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('M2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);
$objActSheet->getStyle('N2')->getAlignment()->setHorizontal(PHPExcel_Style_Alignment::HORIZONTAL_CENTER);

$objActSheet->setCellValue('A2', '现所在单位');
$objActSheet->setCellValue('B2', '姓名');
$objActSheet->setCellValue('C2', '性别');
$objActSheet->setCellValue('D2', '身份证号码');
$objActSheet->setCellValue('E2', '参保时间');
$objActSheet->setCellValue('F2', '增减原因');
$objActSheet->setCellValue('G2', '原所在单位');
$objActSheet->setCellValue('H2', '增减时间');
$objActSheet->setCellValue('I2', '退休时间');
$objActSheet->setCellValue('J2', '原工资');
$objActSheet->setCellValue('K2', '现工资');
$objActSheet->setCellValue('L2', '定点医院');
$objActSheet->setCellValue('M2', '操作人');
$objActSheet->setCellValue('N2', '备注');

//设置边框
$objActSheet->getStyle('A2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N2')->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N2')->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N2')->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N2')->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );

$query=$data->query($sql);
$i=1;
//从数据库取值循环输出
while($result=mysql_fetch_row($query)){
$personName=$result[1];
$idcard=$result[2];
$old_company=$result[3];
$new_company=$result[4];
$sex=$result[5];
$start_time=$result[6];
$reason=$result[7];
$retire_time=$result[8];
$old_wages=$result[9];
$new_wages=$result[10];
$hospital=$result[11];
$remarks=$result[12];
$operator=$result[13];
$oper_time=$result[14];

$n=$i+2;

$objActSheet->getStyle('B'.$n)->getNumberFormat()->setFormatCode('@');
$objActSheet->getStyle('E'.$n)->getNumberFormat()->setFormatCode('@');

$objActSheet->getRowDimension($n)->setRowHeight(16);

$objActSheet->getStyle('A'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('A'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('B'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('C'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('D'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('E'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('F'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('G'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('H'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('I'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('J'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('K'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('L'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('M'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N'.$n)->getBorders()->getTop()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N'.$n)->getBorders()->getLeft()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N'.$n)->getBorders()->getRight()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );
$objActSheet->getStyle('N'.$n)->getBorders()->getBottom()->setBorderStyle(PHPExcel_Style_Border::BORDER_THIN );

$xb="男";
if($sex==1){
$xb="女";
}

$objActSheet->setCellValue('A'.$n, $new_company);
$objActSheet->setCellValue('B'.$n, $personName);
$objActSheet->setCellValue('C'.$n, $xb);
$objActSheet->setCellValue('D'.$n, ' '.$idcard.' ');
$objActSheet->setCellValue('E'.$n, $start_time);
$objActSheet->setCellValue('F'.$n, $reason);
$objActSheet->setCellValue('G'.$n, $old_company);
$objActSheet->setCellValue('H'.$n, $oper_time);
$objActSheet->setCellValue('I'.$n, $retire_time);
$objActSheet->setCellValue('J'.$n, $old_wages);
$objActSheet->setCellValue('K'.$n, $new_wages);
$objActSheet->setCellValue('L'.$n, $hospital);
$objActSheet->setCellValue('M'.$n, $operator);
$objActSheet->setCellValue('N'.$n, $remarks);
$i++;
}


//*************************************
//输出内容
//

$outputFileName = "tables/".$cancel_time."addminus.xls";
//到文件
$objWriter->save($outputFileName);
//下面这个输出我是有个页面用Ajax接收返回的信息
echo("点击下载电子表");



?>
小数据量没问题，但是大数据量时出现数据导入内存溢出经过查询之后，找到了

解决办法：

版本：1.7.6

在不进行特殊设置的情况下，phpExcel将读取的单元格信息保存在内存中，我们可以通过

代码如下 复制代码

PHPExcel_Settings::setCacheStorageMethod()

来设置不同的缓存方式，已达到降低内存消耗的目的！

1、将单元格数据序列化后保存在内存中

代码如下 复制代码

PHPExcel_CachedObjectStorageFactory::cache_in_memory_serialized;

2、将单元格序列化后再进行Gzip压缩，然后保存在内存中

代码如下 复制代码

PHPExcel_CachedObjectStorageFactory::cache_in_memory_gzip;

3、缓存在临时的磁盘文件中，速度可能会慢一些

代码如下 复制代码

PHPExcel_CachedObjectStorageFactory::cache_to_discISAM;

4、保存在php://temp

代码如下 复制代码
PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;

5、保存在memcache中

代码如下 复制代码

PHPExcel_CachedObjectStorageFactory::cache_to_memcache


举例：

第4中方式：

代码如下 复制代码

$cacheMethod = PHPExcel_CachedObjectStorageFactory:: cache_to_phpTemp;
$cacheSettings = array( ' memoryCacheSize ' => '8MB'
);
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);

第5种：

代码如下 复制代码

$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_memcache;
$cacheSettings = array( 'memcacheServer' => 'localhost',
'memcachePort' => 11211,
'cacheTime' => 600
);
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);

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