PHP graphics handbook

Generating images on the fly

Allan Kent, Mitja Slenc, Jason E. Sweat

290 pages, parution le 01/07/2003

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Résumé

It's easy to see why PHP is such a popular language among web developers: this open source scripting language is easy to learn, yet surprisingly powerful and extensible. For example, with the help of extension libraries such as GD you can use PHP to dynamically create and manipulate complex graphics. Generating and manipulating graphics "on the fly" is an essential skill for creating graphically rich interactive web sites that stand out from the crowd.

In this book, we show you how to write PHP scripts that can generate professional-looking graphics dynamically. We'll show you a range of useful techniques, including the best ways to create and manipulate thumbnails, cropping, merging, and blurring images, modifying image color, adding text neatly onto an image, and creating charts dynamically. Using these techniques you'll be able to enhance the appearance and functionality of your web site dramatically.

What you will learn from this book:
We will demonstrate a wide range of techniques, including:

Creating new image files in various formats and drawing on blank images
Merging, blurring, cropping, copying, and cutting-up images
The most effective ways to generate thumbnails and store images
Manipulating color, grayscaling, and duotone, adjusting brightness and contrast
Adding transparency, soft and hard shadows, and watermarks
How to add text to images: handling fonts and text layout
How to create professional-looking charts and graphs

This book assumes that you are already familiar with PHP: that you have already written and run PHP code, and that you are familiar with your chosen development tool.

Introduction
Creating, displaying, and storing images
Transforms and conversions
Colors, lines, and shapes
Text in images
Advanced image manipulation
Graphing with PHP : Introduction
Graphing with PHP : Case studies
Installation instructions
Support, errata, and code download
Index

L'auteur - Allan Kent

Allan Kent has been programming seriously for the past 10 years or so, and other than a single blemish when he achieved a diploma in Cobol programming, is entirely self-taught. He started his career working at the local university and now co-owns a company that does new media design. Allan lives in Cape Town, South Africa, with his girlfriend and four cats.

Caractéristiques techniques

	PAPIER
Éditeur(s)	Wrox Press
Auteur(s)	Allan Kent, Mitja Slenc, Jason E. Sweat
Parution	01/07/2003
Nb. de pages	290
Format	15 x 23
Couverture	Broché
Poids	420g
Intérieur	Noir et Blanc
EAN13	9781861008367