WTF - Some PHP Obfuscation.
This is a discussion on WTF - Some PHP Obfuscation. within the General Chat forums, part of the Lounge category; Today I was messing about in PHP and wondered how confusing you could make some PHP code. I had seen ...
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15-02-2007, 08:44 PM
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 WTF - Some PHP Obfuscation. Today I was messing about in PHP and wondered how confusing you could make some PHP code. I had seen (as many may have) very obfuscated Perl code and the like but I never thought you could do it with PHP. So, here is something I put together which outputs a little message. I have removed one character below, can you find which character is missing and what message is displayed? Code: $_='ca';${$_{1}}=8;${$_{0}}=chr(ord($_)-1);$_;${${$_{0}}{0}}=
ord('l')-100;$c{0}=chr(116>>$b-7);*$_;$a<<=($b%8==0);$_; $c.=
chr((2<<2<<($b>>2)<<2>>2)+13).chr(-7+(-$b+2*$a<<1));echo $c ;
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15-02-2007, 10:25 PM
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| I tried for a while but then gave up. Me PHP knowledge is too limited for that.
__________________ My Blog |
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15-02-2007, 10:39 PM
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| It's logical enough, but yes it is pretty weird looking. |
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16-02-2007, 12:32 PM
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| Code: $_='ca';${$_{1}}=8;${$_{0}}=chr(ord($_)-1);$_;${${$_{0}}{0}}=
ord('l')-100;$c{0}=chr(116>>$b-7);*$_;$a<<=($b%8==0);$_; $c.=
chr((2<<2<<($b>>2)<<2>>2)+13).chr(-7+(-$b+2*$a<<1));echo $c ;
well based on the code above - I removed a character and got Code: :-) |
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16-02-2007, 05:20 PM
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| Very good. |
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17-02-2007, 03:53 PM
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| Damn, I thought you had to add in a character. I knew that * looked out of place. |
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17-02-2007, 03:56 PM
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| Yes, you can just remove the * because the *$_; part is simply padding for that line. In the original code I had 7*$_; to pad out the line without any spaces, but there is a few uneccesary $_; just to pad out the lines. |
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20-02-2007, 04:48 PM
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| Surely a bit of a waste of resources to actually RUN such a thing, though?  |
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20-02-2007, 05:45 PM
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| Definitely, I've got resources to burn.  |
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| Tags |
| obfuscation, php, wtf |
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