How to create list of 301 redirects in htaccess in Evo?

    //<?php
    /**
     * seo301redirect
     *
     * Redirects old URL's to the new ones
     *
     * @category    plugin
     * @version     0.0.3
     * @license     http://www.gnu.org/copyleft/gpl.html GNU Public License (GPL)
     * @internal    @events OnPageNotFound,OnWebPageInit
     * @internal    @modx_category Navigation
     * @author      Stefan Bruggmann - http://www.ng-projects.ch / Apr 10, 2008 13:12 CET
     * @author      Yama - http://kyms.jp / 2013/06/13
     */

    /* /dir/page.html = new doc ID; */
    $urls = <<< EOL

    /old1.html = 5
    /old2.html = 10
    /old3.html = 15

    EOL;

    if($modx->event->name==='OnWebPageInit')
    {
       if(strpos($_SERVER['REQUEST_URI'],'/index.php?'===false)) return;
    }

    $urls = trim($urls);
    $urls = explode("\n", $urls);

    if(empty($urls)) return;

    foreach($urls as $url)
    {
        $url = trim($url);
        if(empty($url)) continue;
       list($url,$id) = explode('=', $url, 2);
       $url = trim($url);
       $id  = trim($id);
       $id  = intval($id);
       $pages[$url] = $id;
    }

    foreach($pages as $url => $id)
    {
       $url = str_replace(MODX_SITE_URL, '', $url);
       $url = '/' . ltrim($url, '/');
       if($_SERVER['REQUEST_URI'] == $url)
       {
          $url = $modx->makeUrl($id, '', '', 'full');
          $modx->sendRedirect($url, 0, 'REDIRECT_HEADER', 'HTTP/1.1 301 Moved Permanently');
          exit;
       }
    }