Take care that that "PHP deflate" != "HTTP deflate".
The deflate encoding used in HTTP is actually zlib encoded.
This is what PHP functions return:
gzencode() == gzip
gzcompress() == zlib (aka. HTTP deflate)
gzdeflate() == *raw* deflate encoding
gzdeflate
说明
string gzdeflate ( string data [, int level] )This function compress the given string using the DEFLATE data format.
For details on the DEFLATE compression algorithm see the document "DEFLATE Compressed Data Format Specification version 1.3" (RFC 1951).
参数
- data
The data to deflate.
- level
The level of compression. Can be given as 0 for no compression up to 9 for maximum compression. If not given, the default compression level will be the default compression level of the zlib library.
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User Contributed Notes
giunta dot gaetano at sea-aeroportimilano dot it
21-Aug-2006 08:22
21-Aug-2006 08:22
denis dot noessler at red-at dot de
17-Jun-2003 06:26
17-Jun-2003 06:26
if you have compressed data which is greater than 2 MB (system dependent), you will receive a buffer error by calling the function gzinflate().
be sure to to compress your data by a lower compression level, like 1.
i.e.: gzdeflate($sData, 1);