LinuxQuestions.org - PHP md5 oddity

I'm not sure if this is the right place but the programming form i post at is down (somethingleet)

So I have two small chunks of code

Code:

md5('password');

returns 5f4dcc3b5aa765d61d8327deb882cf99

Code:

$password='password';

md5($password);

returns 86a65acd94b33daa87c1c6a2d1408593

I would think they create the same result but i get differnt values, any explination?

OMG, oops I found I typed the variable name wrong...

I'm soo embarrassed. You look at something soo long and it seems right. untill you retype the whole thing.