gzopen() - zlib函数（压缩文件）

乐乐2年前 (2023-11-21)阅读数 25#技术干货

文章标签范例

gzopen()

(PHP 4, PHP 5, PHP 7)

Open gz-file

说明

gzopen(string $filename,string $mode[,int $use_include_path= 0]): resource

Opens a gzip(.gz)file for reading or writing.

gzopen() - zlib函数（压缩文件）

gzopen()can be used to read a file which is not in gzip format; in this case gzread() will directly read from the file without decompression.

参数

$filename

The file name.

$mode

As in fopen()(rborwb)but can also include a compression level(wb9)or a strategy:ffor filtered data as inwb6f,hforHuffman only compressionas inwb1h.(See the description ofdeflateInit2inzlib.hfor more information about the strategy parameter.)

$use_include_path

You can set this optional parameter to1, if you want to search for the file in the include_path too.

返回值

Returns a file pointer to the file opened, after that, everything you read from this file descriptor will be transparently decompressed and what you write gets compressed.

If the open fails, the function returnsFALSE.

范例

gzopen()Example

参见

gzclose()Close an open gz-file pointer

gzopen("php://output","wb") doesn't work on a web server, nor does fopen("compress.zlib://php://output","wb").
Here is a snippet to gzip a file and output it on the fly, without using a temporary file, without reading the file into memory, and without reading the file more than once:

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