gistfile1.php

<?php

function write_predicate_object_counts($fh, $pred_obj_counts){
	GLOBAL $dataset_uri;
	GLOBAL $options;
	if($pred_obj_counts !== null){
		foreach($pred_obj_counts as $pred => $count){
			#create a resource for the property partition
			$partition_res = "http://bio2rdf.org/dataset_resource:".md5($options['url']).md5($options['url'].$pred.$count."predicate_object_count");
			#add the dataset type
			fwrite($fh, Quad($partition_res, "http://www.w3.org/1999/02/22-rdf-syntax-ns#type", "http://rdfs.org/ns/void#Dataset"));
			fwrite($fh, Quad($partition_res, "http://rdfs.org/ns/void#property", $pred));
			fwrite($fh, QuadLiteral($partition_res, "http://rdfs.org/ns/void#entities", $count));
			#now connect it back to the void:dataset 
			fwrite($fh, Quad($dataset_uri, "http://rdfs.org/ns/void#propertyPartition", $partition_res));
		}
	}
}

?>