It is pretty difficult to find proper RDF Parser with really simple interface. I found one PHP/RDF parser (for PHP5) on sourceforge.net/projects/simplerdf . It has XSL simplifier and PHP5 parser with simple API! Great one...
Thanks. I use HP's Jena ARP parser on my local machine. (That's what the W3C RDF Validation service uses.) It's very easy to have it show triples or just check for errors. I've put the on-line batch file that I use to drive it at http://www.snee.com/bob/misc/arp2.bat.