22 Generating Images

ONE OF THE USEFUL THINGS YOU CAN DO WITH PHP is create images on the fly. PHP has some built-in image information functions, and you can also use the GD2 library to create new images or manipulate existing ones. This chapter discusses how to use these image functions to achieve some interesting and useful effects.

Key topics covered in this chapter include

Image  Setting up image support in PHP

Image  Understanding image formats

Image  Creating ...

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