Simple class i wrote to output or save jpeg files. Could easily be adapted to work for other formats, but at design time i only needed JPEG support. I may revise it at some point.

This will return a boolean (true/false) if the email address is valid or not.

This is a faily simple function to validate a URL being passed into your scripts. It will allow for http, https, and ftp. The beginning www. of a URL is optional as well. It will also validate if you have an IP address in place of the domain name. I'm sure this can be improved upon as this is my first attempt at regular expressions but it has worked good for me so far. Please comment or improve if your able.

Thanks!

The following program was written for my company's time keeping system which utilizes an LDAP database for authentication and a MySQL database for time-keeping, account access control, etc.

If a user has >= 5 unsuccessful logins, it locks the account for 5 minutes. Once a successful LDAP bind has occured, the $_SESSION vars are set and the authorization process is bypassed until the user logs out or the session expires.