说明：  The Zend PHP Certification Practice Test Book is designed to work as a companion to the Official Zend PHP Certification Study Guide (ISBN 0672327090) published by SAMS Publishing. As a result, its chapters closely reflect those of the guide in order to facilitate your learning process as much as possible. You can read a chapter of the guide, then turn to the corresponding chapter in the Practice Questions Book and take a mini-exam centered exclusively on that particular topic. As an alternative, you can use this book as a testing resource together with the PHP Manual. Our table of contents will give you the basic layout of the topics covered by the exam, which you can use to study directly from the manual, as well as many of the other resources available on the Internet. Once you think you’re ready to try your hand at some questions, you can use this book again for that purpose.