base64_decode returns binary data

Posted on 2006-06-10
Last Modified: 2012-08-14
the base64_decode() returns data in binary!

ive tried to display the output from base64_decode($handshake) and i get binary??

is there someother function that can convert the decoded data in readable data so i can compare it in my code below?

$handshake = '';
$handshake = trim($_GET['handshake']);

if("xyz" == base64_decode($handshake))
      echo "Handshake OK";
      echo "HACKING ATTEMPT";
Question by:ellandrd
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LVL 29

Accepted Solution

TeRReF earned 500 total points
ID: 16876868
Is it serialized perhaps? Normally the function returns the decoded string, so that's weird...
What is it you encode...
Can you show us the whole cycle? SO, both the encoding and decoding part?
LVL 16

Author Comment

ID: 16877084
OK, example:

$str = 'secret';
$encoded_str = base64_encode($str);
if("secret" == base64_decode($encoded_str))
     echo "OK";
     echo "HACKING ATTEMPT";

will fail as base64_decode() return binary data.  How can i decode a string encrpyted by base64?
LVL 16

Author Comment

ID: 16877106
see another example:

$encoded_str = "KHvCoxP73EqvnVaCubzwUQ==";
echo "<p>".$encoded_str."</p>";
$decoded_str = base64_decode($encoded_str);
echo "<p>".$decoded_str."</p>";




The $encoded_str value is a string encoded using a base64 algorithm sent in the URL....

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LVL 16

Author Comment

ID: 16877141
LVL 29

Expert Comment

ID: 16877286
Well done, can you tell us how, so people with the same problem can use your solution...
LVL 16

Author Comment

ID: 16877853
i use md5 hashing instead.

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