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RE: CGI Security and the null byte problem

by mdillon (Priest)
on Oct 26, 2000 at 11:00 UTC ( #38567=note: print w/replies, xml ) Need Help??

in reply to CGI Security and the null byte problem

speaking of null byte problems, i was once bit while trying to do join("\0", array('a', 'b', 'c')) in some PHP code.

it doesn't work!

the result is (in hex):

61 62 63 00 00

one could say, perhaps, that there is a moral to all this...

use perl;

for those to whom it isn't apparent, the correct result (which are easily produced by the equivalent Perl, join "\0", qw(a b c)) is:

61 00 62 00 63

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