zlib://

bzip2://

zip://

zlib:// -- bzip2:// -- zip:// — Compression Streams

Description

compress.zlib:// and compress.bzip2://

zlib: works like gzopen(), except that the stream can be used with fread() and the other filesystem functions. This is deprecated due to ambiguities with filenames containing ':' characters; use compress.zlib:// instead.

compress.zlib:// and compress.bzip2:// are equivalent to gzopen() and bzopen() respectively, and operate even on systems that do not support fopencookie.

ZIP extension registers zip: wrapper. As of PHP 7.2.0 and libzip 1.2.0+, support for the passwords for encrypted archives were added, allowing passwords to be supplied by stream contexts. Passwords can be set using the 'password' stream context option.

Usage

compress.zlib://file.gz
compress.bzip2://file.bz2
zip://archive.zip#dir/file.txt

Options

**Wrapper Summary**
Attribute	Supported
Restricted by allow_url_fopen	No
Allows Reading	Yes
Allows Writing	Yes (except `zip://`)
Allows Appending	Yes (except `zip://`)
Allows Simultaneous Reading and Writing	No
Supports stat()	No, use the normal `file://` wrapper to stat compressed files.
Supports unlink()	No, use the normal `file://` wrapper to unlink compressed files.
Supports rename()	No
Supports mkdir()	No
Supports rmdir()	No