PictText: Generate an a picture with a random text string

This class can generate a picture with random text string. It can be used for validation against robots.

The class generates a picture with a given text or a text with random characters.

It output pictures in either the PNG or JPEG formats using the GD 2.0 library extension.

You can specify a custom TrueType font file or let the class to pick one font available in a given folder.

You can also specify folder from which the class will pick background images used to generate output picture.