Admin login - safety check... how?!

[weee]

I built a login system in PHP and I'd like to know how can I check out if it's easy to hack. go through the username and password.

How can I check it?

Thanks!

[LiLcRaZyFuZzY]

where/how is the password stored?

[SpectreReturns]

I would generate a random user/password and then without knowing it, try to break into the system without modifying any existing files (but you can create new ones).

[LiLcRaZyFuZzY]

the best way to protect the password is to store only the hash (http://php.net/md5)