惯性聚合 高效追踪和阅读你感兴趣的博客、新闻、科技资讯
阅读原文 在惯性聚合中打开

推荐订阅源

A
About on SuperTechFans
D
DataBreaches.Net
K
KPMG report finds enterprise disconnect between AI and its ROI | CIO
V
Visual Studio Blog
奇客Solidot–传递最新科技情报
奇客Solidot–传递最新科技情报
B
Blog RSS Feed
Recent Announcements
Recent Announcements
The Register - Security
The Register - Security
S
Secure Thoughts
Y
Y Combinator Blog
The Last Watchdog
The Last Watchdog
L
LINUX DO - 最新话题
V2EX - 技术
V2EX - 技术
腾讯CDC
GbyAI
GbyAI
G
Google Developers Blog
博客园 - 司徒正美
博客园 - 三生石上(FineUI控件)
T
The Exploit Database - CXSecurity.com
T
Threat Research - Cisco Blogs
P
Proofpoint News Feed
Schneier on Security
Schneier on Security
Microsoft Security Blog
Microsoft Security Blog
Jina AI
Jina AI
WordPress大学
WordPress大学
aimingoo的专栏
aimingoo的专栏
MyScale Blog
MyScale Blog
Help Net Security
Help Net Security
K
Kaspersky official blog
P
Privacy & Cybersecurity Law Blog
www.infosecurity-magazine.com
www.infosecurity-magazine.com
AI
AI
MongoDB | Blog
MongoDB | Blog
Scott Helme
Scott Helme
J
Java Code Geeks
Engineering at Meta
Engineering at Meta
H
Heimdal Security Blog
H
Help Net Security
D
Darknet – Hacking Tools, Hacker News & Cyber Security
云风的 BLOG
云风的 BLOG
Microsoft Azure Blog
Microsoft Azure Blog
S
Security Affairs
TaoSecurity Blog
TaoSecurity Blog
The GitHub Blog
The GitHub Blog
Hacker News: Ask HN
Hacker News: Ask HN
Martin Fowler
Martin Fowler
cs.AI updates on arXiv.org
cs.AI updates on arXiv.org
Project Zero
Project Zero
T
The Blog of Author Tim Ferriss
Last Week in AI
Last Week in AI

博客园 - myx

安装gitlab管理自己的代码 升级Tornado到4后weibo oauth登录不了 SQL Server 无日志文件附加数据库 用monit监控系统关键进程 Failed to read auto-increment value from storage engine错误的处理方法 今天测试了一下 sqlalchemy 性能 PIL The _imaging C module is not installed tcpdf慢及常用的一些方法及问题 Python获取WebService CodeIgniter出现Disallowed Key Characters的问题 CodeIgniter链接ms sql 如果数据库名称有点号连接出错 用python写windows服务 CodeIgniter链接ms sql 的过程windows 2008 关于NTLM认证的.NET,php,python登录 DotNetOpenAuth的Facebook登录,获取头像与基本资料 php里的html内容切取 js生成新加坡的NRIC号码 Sina站内应用的登录 PowerDesigner 链接MySql 用ODBC链接不上的问题
phpExcel大数据量情况下内存溢出解决
myx · 2013-05-20 · via 博客园 - myx

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中

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

1 require_once APPPATH .'third_party/PHPExcel/PHPExcel.php';
2         
3         $cacheMethod = PHPExcel_CachedObjectStorageFactory::cache_to_phpTemp;
4         $cacheSettings = array('memoryCacheSize'=>'16MB');
5         PHPExcel_Settings::setCacheStorageMethod($cacheMethod, $cacheSettings);
6         
7         $objPHPExcel = new PHPExcel();