ns_people_usage.php

<?php

$people = new People;
$young = $people->select()->young();
$youngMale = $young->male();
$youngFemale = $young->female();

$maleWithDocuments = $people->select()->male()->withDocuments();
$publishedBetween2001And2005 = $maleWithDocuments->publishedBetween('2001-01-01 00:00:00', '2005-12-31 23:59:59');

show($people, $youngMale);
show($people, $youngFemale);
show($people, $maleWithDocuments);
show($people, $publishedBetween2001And2005);

function show($table, $select) {
	echo "QUERY: $select\n";
	echo "RESULTS: \n";
	foreach($table->fetchAll($select) as $person) {
		echo "Name: {$person->firstname} {$person->lastname}\n";
		echo "Age: {$person->age}\n";
		echo "Sex: {$person->sex}\n";
		echo "-------\n";
	}
}