<?php
$entry = yp_next ($domain, "passwd.byname", "joe");

if (!$entry) {
	echo "No more entries found\n";
    <!-- echo yp_errno() . ": " . yp_err_string(); -->
}

$key = key ($entry);

echo "The next entry after joe has key " . $key 
      . " and value " . $entry[$key];
?>