Reading and writing to a URL connection, thanks to Java.

Change the case of an array.

Validate Email Address Against MX

Format Bytes

This is a correct way to do login form auto-focus, checking to see if either username or password have focus already. This prevents someone from typing a username hitting TAB, then having JavaScript chime in, resetting focus to Username while user is typing in their password. In this case, the password is appended to the username which is in plaintext.

Set a Cookie

Get a Cookie Value

This only seems appropriate, we were fighting with a similar issue this morning.

Recursively delete a directory, emptying all contents.

Example of how to use CURL with PHP.