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[The following is the conclusion of our series of excerpts from chapter 10 of the Wrox Press title, Professional PHP4 XML. Source code for the examples discussed can be downloaded at the Wrox Web site (free e-mail registration required).]
Writing XML is a problem where an XML file has to be generated from a non-XML source (or it will be a transformation). For example, we may have some data in a database, a file, or objects, and we have to write an XML document. What we do with the XML document later is beyond the scope of the problem. Following are some instances of this problem:
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We won't cover in this problem parsing the non-XML data, which is usually harder than writing the XML document.
In this example we have the following text file describing a to-do list for some people:
Jim Smith, Go to the library and pick up books
Sidney, Make 13 copies of memo no:19
Kelly, Distribute memo no:5 by email
Sidney, Arrange meeting with foo managers
Kelly, Write a draft of the technical document for project X
Jim Smith, Distribute books to team members
Sidney, Record book loans in HR softwareOur task is to generate a representation such as the following:
<to-do>
<person>
<name>Jim Smith</name>
<tasks>
<task>Go to the library and pick up books</task>
<task>Distribute books to team members</task>
</tasks>
</person>
<person>
<name>Sidney</name>
<tasks>
<task>Make 13 copies of memo no:19</task>
<task>Arrange meeting with foo&foo managers</task>
<task>Record book loans in HR software</task>
</tasks>
</person>
<person>
<name>Kelly</name>
<tasks>
<task>Distribute memo no:5 by email</task>
<task>Write a draft of the technical document for project X</task>
</tasks>
</person>
</to-do>We can use the following tools to write XML documents:
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Created: September 3, 2002
Revised: September 3, 2002
URL: http://webreference.com/programming/php/php4xml/chap10/4/
