我想在wordpress multisite中激活博客时挂接一个函数。

我有这个，

add_filter( \'add_signup_meta\', \'custom_add_signup_meta\' );

function custom_add_signup_meta ( $blogmeta = array() ) {

        $the_country = $_POST[\'country-origin\'];
        $d_currency = $_POST[\'user_currency\'];
        $d_zone = $_POST[\'state-origin\'];

        $blogmeta[\'countries_id\'] = $the_country;
        $blogmeta[\'default_currency\'] = $d_currency;
        $blogmeta[\'zone_id\'] = $d_zone;

    return $blogmeta;

}

add_action( \'wpmu_activate_blog\', \'insert_custom_datas1\', 10, 3 );

function insert_custom_datas1($blog_id, $blogmeta) {
        global $wpdb, $blogname, $blog_title, $errors, $domain, $path;
        $wp_blogs = $wpdb->base_prefix . "blogs";

        $wpdb->query("UPDATE `" . $wp_blogs . "` SET `countries_id`=\'".$wpdb->escape($blogmeta[\'countries_id\'])."\', `default_currency`=\'".$wpdb->escape($blogmeta[\'default_currency\'])."\', `zone_id`=\'".$wpdb->escape($blogmeta[\'zone_id\'])."\' where `blog_id` = \'" . (int)$blog_id . "\'");

}