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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