Книги для подготовки PHP5+:
- PHP Architects`s Zend PHP 5 Certification Study Guide 2nd edition.
- The Zend PHP Certification Practice Test Book
- PHPArchitect`s Guide to PHP Design Patterns
- Pro PHP XML and Web Services by Robert Richards
- PHP and MySQL Web Development. Fourth Edition.
Источники:
- http://www.zend.com/en/services/certification/php-5-certification/
- http://www.rusdoc.ru/articles/kak_stat_zend_php_5_certified_engineer/18632/print/