Introduction

Introduction -- Simple transformations

Example database

In this tutorial, the examples refers to this database tables:

mysql> select * from bands;
+----+--------------+------------+-------------+-------------+
| id | name         | birth_year | birth_place | genre       |
+----+--------------+------------+-------------+-------------+
|  1 | The Blabbers |       1998 | London      | Rock'n'Roll |
|  2 | Only Stupids |       1997 | New York    | Hip Hop     |
+----+--------------+------------+-------------+-------------+

mysql> select * from albums;
+----+---------+------------------+------+-----------------+
| id | bandsID | title            | year | comment         |
+----+---------+------------------+------+-----------------+
|  1 |       1 | BlaBla           | 1998 | Their first one |
|  2 |       1 | More Talks       | 2000 | The second one  |
|  3 |       2 | All your base... | 1999 | The Classic     |
+----+---------+------------------+------+-----------------+

The typical using

Let's start with an example using the default options. The new instance is bind to an DSN, so you have only to provide an SQL query. The instance fetches the result automatically; in $xmlstring you found the XML representation of the result set.

Transformations based on Join queries

If your query result base on joined tables, a nested XML data structure can represent how the DBMS joins the tables. To enable or to disable this behavoir use setOptions() with the option key 'nested'. The default value is TRUE - the nesting is enabled.

If you disable the nesting, the XML structure of rows is flat.

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