gzinflate
dtorop932 at hotmail dot com's comments, according to my tests, is incorrect. That code wishes to download the entire file before parsing, which is inconvinient. The wget method works though.
gzopen
(PHP 4, PHP 5)
gzopen — Open gz-file
Description
resource gzopen ( string $filename, string $mode [, int $use_include_path] )Opens a gzip (.gz) file for reading or writing.
gzopen() can be used to read a file which is not in gzip format; in this case gzread() will directly read from the file without decompression.
Parameters
- filename
The file name.
- mode
As in fopen() (rb or wb) but can also include a compression level (wb9) or a strategy: f for filtered data as in wb6f, h for Huffman only compression as in wb1h. (See the description of deflateInit2 in zlib.h for more information about the strategy parameter.)
- use_include_path
You can set this optional parameter to 1, if you want to search for the file in the include_path too.
Return Values
Returns a file pointer to the file opened, after that, everything you read from this file descriptor will be transparently decompressed and what you write gets compressed.
If the open fails, the function returns FALSE.
Examples
See Also
| gzclose() |
add a note
User Contributed Notesgzopen
rob at digital-crocus dot com
01-Jun-2005 12:28
01-Jun-2005 12:28
pentek_imre at mailbox dot hu
29-Jan-2005 06:36
29-Jan-2005 06:36
Be aware that when opening a remote file on a http server the gzopen will return by default false after 120 seconds waiting to any answer.
dtorop932 at hotmail dot com
21-Oct-2004 07:04
21-Oct-2004 07:04
RE dubious's comment: "Being able to read gzip streams from ftp and http is near the top of my personal wishlist at the moment..."
One way to read a gzip stream over http is to daisychain stream wrappers, e.g.:
<?
$fp = fopen("compress.zlib://http://some.website.org/example.gz", "r");
?>
-delete-this-part-dubious at 2xtreme dot net
03-Jan-2002 03:22
03-Jan-2002 03:22
"On the fly" gunzipping actually DOES seem to work - it just appears that only LOCAL streams/files (including php://stdin) can be accessed for some reason. I THINK (but have not yet tested) that you could similarly gzopen "php://stdout" and pass a stream of gzipped data to the browser (when run from a web page) or console (when run standalone) through there.
I HAVE tested scripts from the command line like:
wget -q -O- ftp://some.host.net/pub/some_gzip_file.gz | php gunzip_stuff.php
where gunzip_stuff.php would be a script that gzopened "php://stdin" and did gzgets from that stream, and it seems to work fine, but that obviously doesn't help someone wanting to grab gzipped streams from remote sites from a web-based script.
Being able to read gzip streams from ftp and http is near the top of my personal wishlist at the moment...