ecshop判断搜索引擎是否为蜘蛛

<?php

/**

 * 判断是否为搜索引擎蜘蛛

 *

 * @access  public

 * @return  string

 */

function is_spider($record = true)

{

    static $spider = NULL;



    if ($spider !== NULL)

    {

        return $spider;

    }



    if (empty($_SERVER['HTTP_USER_AGENT']))

    {

        $spider = '';



        return '';

    }



    $searchengine_bot = array(

        'googlebot',

        'mediapartners-google',

        'baiduspider+',

        'msnbot',

        'yodaobot',

        'yahoo! slurp;',

        'yahoo! slurp china;',

        'iaskspider',

        'sogou web spider',

        'sogou push spider'

    );



    $searchengine_name = array(

        'GOOGLE',

        'GOOGLE ADSENSE',

        'BAIDU',

        'MSN',

        'YODAO',

        'YAHOO',

        'Yahoo China',

        'IASK',

        'SOGOU',

        'SOGOU'

    );



    $spider = strtolower($_SERVER['HTTP_USER_AGENT']);



    foreach ($searchengine_bot AS $key => $value)

    {

        if (strpos($spider, $value) !== false)

        {

            $spider = $searchengine_name[$key];



            if ($record === true)

            {

                $GLOBALS['db']->autoReplace($GLOBALS['ecs']->table('searchengine'), array('date' => local_date('Y-m-d'), 'searchengine' => $spider, 'count' => 1), array('count' => 1));

            }



            return $spider;

        }

    }



    $spider = '';



    return '';

}

?>