function show_ppd($foaf_url, $person_uri) {
common_element_start('PersonalProfileDocument', array('rdf:about' => $foaf_url));
common_element('maker', array('rdf:resource' => $person_uri));
common_element('primaryTopic', array('rdf:resource' => $person_uri));
common_element_end('PersonalProfileDocument');
}
function show_ppd($foaf_url, $person_uri) {
common_element_start('PersonalProfileDocument', array('rdf:about' => $foaf_url));
common_element('maker', array('rdf:resource' => $person_uri));
common_element('primaryTopic', array('rdf:resource' => $person_uri));
common_element_end('PersonalProfileDocument');
}