A Gentle Introduction to symfony
by Francois Zaninotto, Fabien Potencier
Publisher: Sensio SA 2010
A Gentle Introduction to symfony introduces you to the leading framework for PHP developers, showing you how to wield its many features to develop web applications faster and more efficiently, even if you only know a bit of PHP.
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This online book covers all areas of PHP in detail: the basics of the language, file and filesystem handling, object oriented programming, MySQL and SQLite database access, handling of HTML forms, using cookies and PHP sessions.
by Alex Cabal - phpbestpractices.org
This text is an attempt to compile a set of instructions for what can be considered best practices for common and confusing issues and tasks in PHP. It's a guide suggesting the best direction to take when facing one of the common low-level tasks.
by Krishna Rungta - guru99
PHP is a serverside scripting language. This book is designed for beginners with little or no PHP experience. Apart from teaching the PHP syntax, this book also gives you steps to create a sample project (Ajax Based Poll Application).
by Mario Lurig
A collection of over 250 PHP functions with clear explanations in language anyone can understand, followed with examples. The book includes numerous additional tips, the basics of PHP, MySQL query examples, regular expressions syntax, etc.