Secure Way To Encrypt Passwords

[Anon]

I'm trying to find a secure way to encrypt passwords submitted from a browser, handled in a PHP file and saved to an MySQL database.
If I put the encryption algorithm in PHP script, it can be viewed.
Is it possible to call a compiled file (DLL file in Windows) from a PHP script? If so, I could put the encryption algorithm there. Can MySQL encrypt?
Any help would be appreciated.

[Anon]

md5 hashing is good enough for this. (See the md5() function).

Store the md5 hash of the password in the database. Whenever you want to check a submitted password, md5() it and compare the result hash with those in the database.