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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

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