如果你想用文字印刷的方式来做，动作挂钩就是这样做的方式。下面是一段不言自明的代码：

// We hook into the template_redirect action hook, which is the proper
// hook to be used for redirections
add_action(\'template_redirect\',\'wpse339255_redirect_old_urls\');

/**
 * Check whether the page_id query string has been set,
 * and if so, redirect the user to homepage
 */
function wpse339255_redirect_old_urls(){
    // Check if the page_id query string is set
    if( isset( $_GET[\'page_id\'] ) && ! empty( $_GET[\'page_id\'] ) ){
        // Do the redirect
        wp_redirect( home_url() );
        die;
    }

}