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Compression Streams

zlib: PHP 4.0.4 - PHP 4.2.3 (systems with fopencookie only)

compress.zlib:// and compress.bzip2:// PHP 4.3.0 and up

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

zlib: works like gzopen(), except that the stream can be used with fread() and the other filesystem functions. This is deprecated as of PHP 4.3.0 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.

Table L-7. Wrapper Summary

Attribute	Supported
Restricted by allow_url_fopen.	No
Allows Reading	Yes
Allows Writing	Yes
Allows Appending	Yes
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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