云平台需要用工具批量导入Excel数据，小曲的代码写好之后，在小数据量下测试没有问题，但是在正式环境中一旦数据超过一千条，一行十列就是一条数据，内存就超标了。
先看例子，代码如下：
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");
?>
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数据量小的时候没有问题，但是数据量大的时候就会出现数据导入内存溢出的情况，查询之后找到了解决办法。
版本：1.7.6，无需任何特殊设置，读取的单元格信息保存在内存中，我们可以使用如下代码：
::d()；
设置不同的缓存方式，已经达到了减少内存消耗的目的。
1.将单元格数据序列化，保存在内存中，代码如下：
::；
2. 将cell序列化，用Gzip压缩，保存在内存中，代码如下：
::；
3.缓存在临时磁盘文件中，速度可能会慢一些，代码如下：
::；
4.保存在php://temp中，代码如下：
::；
5.保存进去，代码如下：
::
例如第四种方法，代码如下：
$ = :: ;
$ = 数组（' ' => '8MB'
（英文）：
::d($，$);
第五种，代码如下：
$ = ::;
$ = 数组（'' => ''，
'' => 11211，
'' => 600
（英文）：
::d($，$);
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我们凭借多年的网站建设经验，坚持以“帮助中小企业实现网络营销化”为宗旨，累计为4000多家客户提供品质建站服务，得到了客户的一致好评。如果您有网站建设、网站改版、域名注册、主机空间、手机网站建设、网站备案等方面的需求，请立即点击咨询我们或拨打咨询热线： 13761152229，我们会详细为你一一解答你心中的疑难。
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