zlib: PHP 4.0.4 - PHP 4.2.3
(systems with fopencookie only)
compress.zlib:// and compress.bzip2:// PHP 4.3 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 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.