Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By : Yuli Vasiliev
Book Image

PHP Oracle Web Development: Data processing, Security, Caching, XML, Web Services, and Ajax

By: Yuli Vasiliev

Overview of this book

Oracle Database gets high marks for performance, reliability, and scalability. Building and deploying your PHP applications on Oracle Database enables you to combine the power and robustness of Oracle and the ease of use, short development time, and high performance of PHP. When used in a complementary way, PHP and Oracle allow you to build high-performance, scalable, and reliable data-driven Web applications with a minimum of effort.When building a PHP/Oracle application, you have two general options. The first is to use an Oracle database just to store data, performing all the operations on that data on the client side; the other is to use the database not only to store data, but also to process it, thus moving data processing to the data. While building the key business logic of a database-driven PHP application inside the database is always a good idea, you should bear in mind that not all of the databases available today allow you to do. The Oracle database, which offers record-breaking performance, scalability, and reliability, does. The partnership of Oracle and the open-source scripting language PHP is an excellent solution for building high-performance, scalable, and reliable data-driven web applications.This 100% practical book is crammed full of easy-to-follow examples. It provides all the tools a PHP/Oracle developer needs to take advantage of the winning combination. It addresses the needs of a wide spectrum of PHP/Oracle developers, placing the emphasis on the most up-to-date topics, such as new PHP and Oracle Database features, stored procedure programming, handling transactions, security, caching, web services, and Ajax.
Table of Contents (16 chapters)
PHP Oracle Web Development
Credits
About the Author
About the Reviewer
Preface

Processing XML in PHP/Oracle Applications


As mentioned, there are two alternatives when it comes to performing XML processing in your PHP/Oracle application. You can perform any required XML processing using either PHP's XML extensions (or PEAR XML packages) or Oracle's XML features.

In the following sections, you will learn how to construct XML from relational data using the XML capabilities of both PHP and Oracle.

Processing XML Data with PHP

PHP provides three general extensions allowing you to work with XML. These extensions are listed in the following table:

PHP extension

Description

XML extension

The XML extension implements the SAX (Simple API for XML) approach to parsing and accessing XML content. The SAX parsing mechanism is memory efficient since it doesn't require the entire XML document to be stored in memory. This makes the SAX approach useful for certain type of operations on XML, for example, searching.

DOM extension

The DOM extension provides APIs for working with XML...