你想要的WP_Rewrite::using_permalinks.

<?php
add_action(\'init\', \'wpse142273_add_rules\');
function wpse142273_add_rules()
{
    global $wp_rewrite;
    if ($wp_rewrite->using_permalinks()) {
        // Plan A
    } else {
        // Plan B
    }
}

Here\'s a larger example.

<?php
// inside a class somewhere
public static function url($area, $additional=null)
{
    global $wp_rewrite;

    if ($wp_rewrite->using_permalinks()) {
        $path = "/account/{$area}";

        if ($additional) {
            $path .= \'/\' . $additional;
        }

        if (\'/\' === $wp_rewrite->permalink_structure[count($wp_rewrite->permalink_structure) - 1]) {
            $path = trailingslashit($path);
        }
    } else {
        $q = array(
            static::ACCOUNT_VAR => $area,
        );

        if ($additional) {
            $q[static::ADDITIONAL_VAR] = $additional;
        }

        $path = \'?\'.http_build_query($q);
    }

    return apply_filters(\'frontend_accounts_url\', home_url($path), $area, $additional);
}

记住，盲目地打电话是可以的add_rewrite_rule 不使用永久链接时。无论如何，您都需要添加自定义查询变量（通过筛选query_vars) 因此，您的插件/主题在不重写的情况下仍然可以正常工作。