phpExcel导入大数据量情况下内存溢出解决方案

时间:2022-10-24 04:08:17

PHPExcel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 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

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

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

PHPExcel_CachedObjectStorageFactory::cache_to_discISAM;

4、保存在php://temp

PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp; 

5、保存在memcache

PHPExcel_CachedObjectStorageFactory::cache_to_memcache;

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

注意是加在new PHPExcel() 前面:如下

require_once APPPATH .'third_party/PHPExcel/PHPExcel.php';

$cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
$cacheSettings = array('memoryCacheSize'=>'16MB');
PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);
$objPHPExcel = new PHPExcel();

本文源自:https://www.cnblogs.com/myx/archive/2013/05/20/phpExcel-setCache.html ,谢谢博友的讲解!