xml

2 simple class for sitemap:

http://www.smartango.com/files/sitemap.txt

simple use:

$root = $_SERVER['DOCUMENT_ROOT'];
$sm = new SiteMap($root,'sitemap-1.xml');
$sm->start();
$http = "http://www.example.com";
$sm->addUrl($http."/file.html");
$sm->end();

...SiteMapIdx similar

I tried both SAX and DOM, for parsing an XML file, difference in time performance is huge, from 4 hours (DOM) to 9 seconds (SAX).

Different APIs

Different interface bring to different complexity of code, but all depends from the point of view