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The downside is the output has to be either encoded as UTF8 or ISO-8859-1.
I’ve tried to use base64_encode(gzdeflate($string, 9)), but the result ends up being more than the original string.
Can anyone think of a way to do this?
Thanks
Compressed data is basically binary – it has no character set, it’s just a sequence of bytes. base64 basically increases the size of the input by a factor of about 1.33, so unless the string compressed to less than .66 or so of original size, you’re going to lose out.
The bigger question is why would you need to re-encode the compressed data? Is it to display it as “plain text” instead of the random ‘garbage’ it would be if you output the raw bytes?