Custom Change Post per Page

/* Custom Change Post per Page */
function custom_change_post_per_page( $attr, $name, $category ) {
    switch ($name) {
        case 'jnews_category_': /* For Category Page */
            $attr['pagination_number_post'] = 20;
            $attr['number_post'] = 20;
            break;
        case 'jnews_archive_': /* For Archive Page */
            $attr['pagination_number_post'] = 30;
            $attr['number_post'] = 30;
            break;
        case 'jnews_author_': /* For Author Page */
            $attr['pagination_number_post'] = 15;
            $attr['number_post'] = 15;
            break;
    }

    return $attr;
}
add_action( 'jnews_get_content_attr', 'custom_change_post_per_page', 99, 3 );

function custom_change_post_per_page_by_pre_get_posts( $query ) {
    if ( is_search() ) { /* For Search Page */
        $query->set( 'posts_per_page', 5 );
    }
}
add_action( 'pre_get_posts', 'custom_change_post_per_page_by_pre_get_posts', 99 );