PHP and sitemap.xml

Question

I am planning to build a script that will create a sitemap.xml for my site, say, every day (cron will execute the script). Should I just build the XML string and save it as a file? Or would there be some benefit to using one of PHP's classes/functions/etc. for XML?

If I should be using some sort of PHP class/function/etc., what should it be?

Answer 1

For simple XML it is often easier to just output the string. But the more complex your document gets, the more benefit you will get from using an XML library (either those included with PHP or a third party script) as it will help you to output correct XML.

For a sitemap, you would probably be best just writing the string.