Hash function

[ayman_rapper]

I was testing the Hash function today.
And I read here http://il2.php.net/manual/en/function.hash.php
If I set the parameter $raw_output=true the function will return a binary rows instead of hexits values.

But when I try it it returns a strange characters instead of binary values?

So can you explain for me what they mean by binary rows, and why I don't see binary values?

Thanks

[dclamp]

i tried it and i see what you mean. i am not really sure what is happening.

this is what i got:

\o��@�Uks�c���

[penagate]

Raw binary data, not characters. You're trying to view them as characters, hence the confusion.

[ayman_rapper]

so How can I see the actual binary values?

[RudiVisser]

You mean how do you see the characters that the binary values represent?

[visualAd]

so How can I see the actual binary values?

If you wish to see the binary output in a visual form then you don't set the raw_output argument to true. The character form of the hash is usually expressed as hexadecimal digits 0-F rather than binary digits to make it easier to read.

If you want to save space and simply compare hashes, (not read or transfer it as part of a text protocol HTTP/SMTP) then you should set the raw_output argument to true.