WordPress maaguu (^^; com 北海道札幌でホームページ制作を楽しむ

Internet Explorer 6を判別して別ページを表示するプラグインのサンプル。

IE6ハックとかやりたくないので作ってみました。「IE6には対応してないよ、ごめんなさい」というページを表示するだけ。

<?php
/*
Plugin Name: maaguu_replace_page.php
Plugin URI: http://wp.maaguu.com/2008/12/15/replace-page/
Description:
Version: 1.0
Author: maaguu
Author URI: http://maaguu.com/
*/

/*  Copyright 2008 maaguu (email : info@mx.maaguu.com)

    This program is free software; you can redistribute it and/or modify
    it under the terms of the GNU General Public License as published by
    the Free Software Foundation; either version 2 of the License, or
    (at your option) any later version.

    This program is distributed in the hope that it will be useful,
    but WITHOUT ANY WARRANTY; without even the implied warranty of
    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
    GNU General Public License for more details.

    You should have received a copy of the GNU General Public License
    along with this program; if not, write to the Free Software
    Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
*/

class maaguu_replacePage
{

    private $userAgent;
    private $pattern_ie6;

    public function __construct()
    {
        $this->userAgent = $_SERVER['HTTP_USER_AGENT'];
        $this->pattern_ie6 = '/MSIE 6/';
        add_action('template_redirect', array($this, 'replace_page'));
    }

    public function replace_page()
    {
        if (preg_match($this->pattern_ie6, $this->userAgent))
        {
            include(TEMPLATEPATH . '/ie6.php');
            exit;
        }
    }

}

new maaguu_replacePage();

/* End of file maaguu_replace_page.php */

プラグインを有効にして、テンプレートディレクトリにie6.phpを置きます。