$extralen=$extralen[1]; $headerlen+= 2 +$extralen; } if($flags& 8)// Filename $headerlen=strpos($data,chr(0),$headerlen) + 1; if($flags& 16)// Comment $headerlen=strpos($data,chr(0),$headerlen) + 1; if($flags& 2)// CRCatendoffile $headerlen+= 2; $unpacked= @gzi...
When fileobjisnotNone, the filename argumentisonly used to be includedinthe gzip file header, which may include the original filename of the uncompressed file. It defaults to the filename of fileobj,ifdiscernible; otherwise, it defaults to the empty string,andinthis case the original filenam...
The worst case expan- sion is a few bytes for the gzip file header, plus 5 bytes every 32K block, or an expansion ratio of 0.015% for large files. Note that the actual number of used disk blocks almost never increases. gzip preserves the mode, ownership and timestamps of files when ...
no-cache - 启用压缩,如果header头中包含 "Cache-Control:no-cache" 头信息 no-store - 启用压缩,如果header头中包含 "Cache-Control:no-store" 头信息 private - 启用压缩,如果header头中包含 "Cache-Control:private" 头信息 no_last_modified - 启用压缩,如果header头中不包含 "Last-Modified" 头信息 ...
据腾讯大佬支持，手机上会自动的添加Accept-Encoding，不用自己手动
body,同时加入以下header:Content-Encoding: gzip:表明body是gzip过的数据 Content-Length:117:表示body gzip压缩后的数据大小,便于客户端使用 或Transfer-Encoding: chunked:分块传输编码 二. 如何使用gzip进行压缩 tomcat开启压缩(gzip) tomcat server.xml
(1) NAME...,保留原文件 -r –recursive -t –test 检查压缩文件的完整性 -v –verbose 显示每个文件的名子和压缩率 -# –fast –...,压缩之后,是各自分开的: root@ubuntu:/tmp# gzip file1.txt file2.txt root@ubuntu:/tmp# ls -l total 1348 -rw-r–r...gzip -c file1.txt file2.txt >...
It then proceeds to write out the GZIP header block. The first 2 bytes of the GZIP header (0x1F and 0x8B) are a "magic number" used to indicate that this is indeed a GZIP file (many file formats begin with magic numbers or unique identifiers so that consuming applications can quickly ...
http{# nginx开启Gzip:若没有找到.gz,会动态压缩,因此建议前端打包成.gz文件# 是否启用Gzip(on为启用,off为关闭)gzip on;# 设置允许压缩的页面最小字节数,页面字节数从header头中的Content-Length中进行获取。默认值是0,不管页面多大都压缩。建议设置成大于1k的字节数,小于1k可能会越压越大。gzip_min_length...