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.
| 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 |
ZIP extension registers zip: wrapper.