codeigniter.com), and many more. You
have got a large number of resources available to manipulate database using PHP5
and OO style.
In the next chapter we will learn about using XML in PHP. You will be surprised
to find that you can use plain XML files as a lightweight alternative of regular
heavyweight database engines. Until then, happy coding.
Cooking XML with OOP
XML (Extensible Markup Language) is a very important format for storing
multi-purpose data. It is also known as universal data format, as you can represent
anything and visualize the data properly with the help of a renderer. One of the
biggest advantages of XML is that it can be converted from one form of data into
another easily with the help of XSLT. Also, XML data is highly readable.
One of the great blessings of PHP5 is its excellent support to manipulate XML. PHP5
comes bundled with new XML extensions for processing XML easily. You have a
whole new SimpleXML API to read XML documents in a pure object-oriented way.
Also, you have the DOMDocument object to parse and create XML documents. In
this chapter we will learn these APIs and learn how to successfully process XML
with PHP.
Formation of XML
Let us look at the structure of a common XML document in case you are totally new
to XML.
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