Passwords for a .htaccess file?

What encryption is used for generating the passwords for a .htaccess file?

I have looked through all the encoding functions in php and I cant find it.
Is it even available in PHP?
If not does anyone know a script I can use to fit into my script to generate it?

regards

 

http://httpd.apache.org/docs/1.3/programs/htpasswd.html

 

Thanks for that, but how can I generate one?

 

Try this.

http://www.phpfreaks.com/quickcode/htpasswd-Generator/207.php


EDIT:

Or this.

http://php-classes-functions.blogspot.com/2007/05/htaccess-and-htpasswd-generator-php.html

 

Thanks works