Description
string
gzcompress ( string data [, int level])
This function returns a compressed version of the input
data using the ZLIB data format,
or FALSE if an error is encountered. The optional parameter
level can be given as 0 for no
compression up to 9 for maximum compression.
For details on the ZLIB compression algorithm see the document
"ZLIB Compressed Data Format
Specification version 3.3" (RFC 1950).
Note:
This is not the same as gzip compression,
which includes some header data. See gzencode()
for gzip compression.
See also gzdeflate(),
gzinflate(),
gzuncompress(),
gzencode().