public static function sort_rules($rewrite_rules)
{
$pr = array();
$max_priority = 0;
foreach ($rewrite_rules as $r) {
$priority = $r->priority;
$pr[$priority][] = $r;
$max_priority = max($max_priority, $priority);
}
$rewrite_rules = array();
for ($z = 0; $z <= $max_priority; $z++) {
if (isset($pr[$z])) {
$rewrite_rules = array_merge($rewrite_rules, $pr[$z]);
}
}
return $rewrite_rules;
}