Sources

You may export data from various sources:

• PHP Array
• CSV
• Doctrine Query (ORM & ODM supported)
• PDO Statement
• PHP Iterator instance
• PHP Iterator with a callback on current
• XML
• Excel XML
• XLSX (SpreadsheetML format for Microsoft Excel)
• Sitemap (Takes another iterator)
• Chain (can aggregate data from several different iterators)

You may also create your own. To do so, create a class that implements \Iterator.