<?php if (!defined('DEDEINC')) exit("Request Error!");
/**
 * 搜索视图类
 *
 * @version        $Id: arc.searchview.class.php 1 15:26 2010年7月7日Z tianya $
 * @package        DedeCMS.Libraries
 * @copyright      Copyright (c) 2020, DedeBIZ.COM
 * @license        https://www.dedebiz.com/license
 * @link           https://www.dedebiz.com
 */
require_once(DEDEINC . "/typelink.class.php");
require_once(DEDEINC . "/dedetag.class.php");
require_once(DEDEINC . "/splitword.class.php");
require_once(DEDEINC . "/taglib/hotwords.lib.php");
require_once(DEDEINC . "/taglib/channel.lib.php");

@set_time_limit(0);
@ini_set('memory_limit', '512M');

/**
 * 搜索视图类
 *
 * @package          SearchView
 * @subpackage       DedeCMS.Libraries
 * @link             https://www.dedebiz.com
 */
class SearchView
{
    var $dsql;
    var $dtp;
    var $dtp2;
    var $TypeID;
    var $TypeLink;
    var $PageNo;
    var $TotalPage;
    var $TotalResult;
    var $PageSize;
    var $ChannelType;
    var $TempInfos;
    var $Fields;
    var $PartView;
    var $StartTime;
    var $Keywords;
    var $OrderBy;
    var $SearchType;
    var $mid;
    var $KType;
    var $Keyword;
    var $SearchMax;
    var $SearchMaxRc;
    var $SearchTime;
    var $AddSql;
    var $RsFields;

    /**
     *  php5构造函数
     *
     * @access    public
     * @param     int  $typeid  栏目ID
     * @param     string  $keyword  关键词
     * @param     string  $orderby  排序
     * @param     string  $achanneltype  频道类型
     * @param     string  $searchtype  搜索类型
     * @param     string  $starttime  开始时间
     * @param     string  $upagesize  页数
     * @param     string  $kwtype  关键词类型
     * @param     string  $mid  会员ID
     * @return    string
     */
    function __construct(
        $typeid,
        $keyword,
        $orderby,
        $achanneltype = "all",
        $searchtype = '',
        $starttime = 0,
        $upagesize = 20,
        $kwtype = 1,
        $mid = 0
    ) {
        global $cfg_search_max, $cfg_search_maxrc, $cfg_search_time;
        if (empty($upagesize)) {
            $upagesize = 10;
        }
        $this->TypeID = $typeid;
        $this->Keyword = $keyword;
        $this->OrderBy = $orderby;
        $this->KType = $kwtype;
        $this->PageSize = (int)$upagesize;
        $this->StartTime = $starttime;
        $this->ChannelType = $achanneltype;
        $this->SearchMax = $cfg_search_max;
        $this->SearchMaxRc = $cfg_search_maxrc;
        $this->SearchTime = $cfg_search_time;
        $this->mid = $mid;
        $this->RsFields = '';
        $this->SearchType = $searchtype == '' ? 'titlekeyword' : $searchtype;
        $this->dsql = $GLOBALS['dsql'];
        $this->dtp = new DedeTagParse();
        $this->dtp->SetRefObj($this);
        $this->dtp->SetNameSpace("dede", "{", "}");
        $this->dtp2 = new DedeTagParse();
        $this->dtp2->SetNameSpace("field", "[", "]");
        $this->TypeLink = new TypeLink($typeid);
        // 通过分词获取关键词
        $this->Keywords = $this->GetKeywords($keyword);

        //设置一些全局参数的值
        if ($this->TypeID == "0") {
            $this->ChannelTypeid = 1;
        } else {
            $row = $this->dsql->GetOne("SELECT channeltype FROM `#@__arctype` WHERE id={$this->TypeID}");
            $this->ChannelTypeid = $row['channeltype'];
        }
        foreach ($GLOBALS['PubFields'] as $k => $v) {
            $this->Fields[$k] = $v;
        }
        $this->CountRecord();


        $tempfile = $GLOBALS['cfg_basedir'] . $GLOBALS['cfg_templets_dir'] . "/" . $GLOBALS['cfg_df_style'] . "/search.htm";
        if (defined('DEDEMOB')) {
            $tempfile = str_replace('.htm', '_m.htm', $tempfile);
        }
        if (!file_exists($tempfile) || !is_file($tempfile)) {
            echo "模板文件不存在，无法解析！";
            exit();
        }
        $this->dtp->LoadTemplate($tempfile);
        $this->TempInfos['tags'] = $this->dtp->CTags;
        $this->TempInfos['source'] = $this->dtp->SourceString;
        if ($this->PageSize == "") {
            $this->PageSize = 20;
        }
        $this->TotalPage = ceil($this->TotalResult / $this->PageSize);
        if ($this->PageNo == 1) {
            $this->dsql->ExecuteNoneQuery("UPDATE `#@__search_keywords` SET result='" . $this->TotalResult . "' WHERE keyword='" . addslashes($keyword) . "'; ");
        }
    }

    //php4构造函数
    function SearchView(
        $typeid,
        $keyword,
        $orderby,
        $achanneltype = "all",
        $searchtype = "",
        $starttime = 0,
        $upagesize = 20,
        $kwtype = 1,
        $mid = 0
    ) {
        $this->__construct($typeid, $keyword, $orderby, $achanneltype, $searchtype, $starttime, $upagesize, $kwtype, $mid);
    }

    //关闭相关资源
    function Close()
    {
    }

    /**
     *  获得关键字的分词结果，并保存到数据库
     *
     * @access    public
     * @param     string  $keyword  关键词
     * @return    string
     */
    function GetKeywords($keyword)
    {
        global $cfg_soft_lang;
        global $cfg_bizcore_appid, $cfg_bizcore_key, $cfg_bizcore_hostname, $cfg_bizcore_port;
        $keyword = cn_substr($keyword, 50);
        $row = $this->dsql->GetOne("SELECT spwords FROM `#@__search_keywords` WHERE keyword='" . addslashes($keyword) . "'; ");
        if (!is_array($row)) {
            if (strlen($keyword) > 7) {
                if (!empty($cfg_bizcore_appid) && !empty($cfg_bizcore_key)) {
                    $client = new DedeBizClient($cfg_bizcore_hostname, $cfg_bizcore_port);
                    $client->appid = $cfg_bizcore_appid;
                    $client->key = $cfg_bizcore_key;
                    $data = $client->Spliteword($keyword);
                    $kvs = explode(",", $data->data);
                    $keywords = $keyword . " ";
                    foreach ($kvs as $key => $value) {
                        $keywords .= ' ' . $value;
                    }
                    $keywords = preg_replace("/[ ]{1,}/", " ", $keywords);
                    $client->Close();
                    // var_dump($keywords);exit;
                } else {
                    $sp = new SplitWord($cfg_soft_lang, $cfg_soft_lang);
                    $sp->SetSource($keyword, $cfg_soft_lang, $cfg_soft_lang);
                    $sp->SetResultType(2);
                    $sp->StartAnalysis(TRUE);
                    $keywords = $sp->GetFinallyResult();
                    $idx_keywords = $sp->GetFinallyIndex();
                    ksort($idx_keywords);
                    $keywords = $keyword . ' ';
                    foreach ($idx_keywords as $key => $value) {
                        if (strlen($key) <= 3) {
                            continue;
                        }
                        $keywords .= ' ' . $key;
                    }
                    $keywords = preg_replace("/[ ]{1,}/", " ", $keywords);
                    // var_dump($keywords);exit();
                    unset($sp);
                }
            } else {
                $keywords = $keyword;
            }
            $inquery = "INSERT INTO `#@__search_keywords`(`keyword`,`spwords`,`count`,`result`,`lasttime`)
          VALUES ('" . addslashes($keyword) . "', '" . addslashes($keywords) . "', '1', '0', '" . time() . "'); ";
            $this->dsql->ExecuteNoneQuery($inquery);
        } else {
            $this->dsql->ExecuteNoneQuery("UPDATE `#@__search_keywords` SET count=count+1,lasttime='" . time() . "' WHERE keyword='" . addslashes($keyword) . "'; ");
            $keywords = $row['spwords'];
        }
        return $keywords;
    }

    /**
     *  获得关键字SQL
     *
     * @access    private
     * @return    string
     */
    function GetKeywordSql()
    {
        $ks = explode(' ', $this->Keywords);
        $kwsql = '';
        $kwsqls = array();
        foreach ($ks as $k) {
            $k = trim($k);
            if (strlen($k) < 1) {
                continue;
            }
            if (ord($k[0]) > 0x80 && strlen($k) < 2) {
                continue;
            }
            $k = addslashes($k);
            if ($this->ChannelType < 0 || $this->ChannelTypeid < 0) {
                $kwsqls[] = " arc.title LIKE '%$k%' ";
            } else {
                if ($this->SearchType == "title") {
                    $kwsqls[] = " arc.title LIKE '%$k%' ";
                } else {
                    $kwsqls[] = " CONCAT(arc.title,' ',arc.writer,' ',arc.keywords) LIKE '%$k%' ";
                }
            }
        }
        if (!isset($kwsqls[0])) {
            return '';
        } else {
            if ($this->KType == 1) {
                $kwsql = join(' OR ', $kwsqls);
            } else {
                $kwsql = join(' And ', $kwsqls);
            }
            return $kwsql;
        }
    }

    /**
     *  获得相关的关键字
     *
     * @access    public
     * @param     string  $num  关键词数目
     * @return    string
     */
    function GetLikeWords($num = 8)
    {
        $ks = explode(' ', $this->Keywords);
        $lsql = '';
        foreach ($ks as $k) {
            $k = trim($k);
            if (strlen($k) < 2) {
                continue;
            }
            if (ord($k[0]) > 0x80 && strlen($k) < 2) {
                continue;
            }
            $k = addslashes($k);
            if ($lsql == '') {
                $lsql = $lsql . " CONCAT(spwords,' ') LIKE '%$k %' ";
            } else {
                $lsql = $lsql . " OR CONCAT(spwords,' ') LIKE '%$k %' ";
            }
        }
        if ($lsql == '') {
            return '';
        } else {
            $likeword = '';
            $lsql = "(" . $lsql . ") AND NOT(keyword like '" . addslashes($this->Keyword) . "') ";
            $this->dsql->SetQuery("SELECT keyword,count FROM `#@__search_keywords` WHERE $lsql ORDER BY lasttime DESC LIMIT 0,$num; ");
            $this->dsql->Execute('l');
            while ($row = $this->dsql->GetArray('l')) {
                if ($row['count'] > 1000) {
                    $fstyle = " style='font-size:11pt;color:red'";
                } else if ($row['count'] > 300) {
                    $fstyle = " style='font-size:10pt;color:green'";
                } else {
                    $style = "";
                }
                $likeword .= "　<a href='search.php?keyword=" . urlencode($row['keyword']) . "&searchtype=titlekeyword'" . $style . "><u>" . $row['keyword'] . "</u></a> ";
            }
            return $likeword;
        }
    }

    /**
     *  加粗关键字
     *
     * @access    private
     * @param     string  $fstr  关键词字符
     * @return    string
     */
    function GetRedKeyWord($fstr)
    {
        //echo $fstr;
        $ks = explode(' ', $this->Keywords);
        foreach ($ks as $k) {
            $k = trim($k);
            if ($k == '') {
                continue;
            }
            if (ord($k[0]) > 0x80 && strlen($k) < 2) {
                continue;
            }
            // 这里不区分大小写进行关键词替换
            $fstr = str_ireplace($k, "<font color='red'>$k</font>", $fstr);
            // 速度更快,效率更高
            //$fstr = str_replace($k, "<font color='red'>$k</font>", $fstr);
        }
        return $fstr;
    }

    /**
     *  统计列表里的记录
     *
     * @access    public
     * @return    string
     */
    function CountRecord()
    {
        $this->TotalResult = -1;
        if (isset($GLOBALS['TotalResult'])) {
            $this->TotalResult = $GLOBALS['TotalResult'];
            $this->TotalResult = is_numeric($this->TotalResult) ? $this->TotalResult : "";
        }
        if (isset($GLOBALS['PageNo'])) {
            $this->PageNo = intval($GLOBALS['PageNo']);
        } else {
            $this->PageNo = 1;
        }
        $ksql = $this->GetKeywordSql();
        $ksqls = array();
        if ($this->StartTime > 0) {
            $ksqls[] = " arc.senddate>'" . $this->StartTime . "' ";
        }
        if ($this->TypeID > 0) {
            $ksqls[] = " typeid IN (" . GetSonIds($this->TypeID) . ") ";
        }
        if ($this->ChannelType > 0) {
            $ksqls[] = " arc.channel='" . $this->ChannelType . "'";
        }
        if ($this->mid > 0) {
            $ksqls[] = " arc.mid = '" . $this->mid . "'";
        }
        $ksqls[] = " arc.arcrank > -1 ";
        $this->AddSql = ($ksql == '' ? join(' AND ', $ksqls) : join(' AND ', $ksqls) . " AND ($ksql)");
        if ($this->ChannelType < 0 || $this->ChannelTypeid < 0) {
            if ($this->ChannelType == "0") $id = $this->ChannelTypeid;
            else $id = $this->ChannelType;
            $row = $this->dsql->GetOne("SELECT addtable FROM `#@__channeltype` WHERE id=$id");
            $addtable = trim($row['addtable']);
            $this->AddTable = $addtable;
        } else {
            $this->AddTable = "#@__archives";
        }
        $cquery = "SELECT * FROM `{$this->AddTable}` arc WHERE " . $this->AddSql;
        //var_dump($cquery);
        $hascode = md5($cquery);
        $row = $this->dsql->GetOne("SELECT * FROM `#@__arccache` WHERE `md5hash`='" . $hascode . "' ");
        $uptime = time();
        if (is_array($row) && time() - $row['uptime'] < 3600 * 24) {
            $aids = explode(',', $row['cachedata']);
            $this->TotalResult = count($aids) - 1;
            $this->RsFields = $row['cachedata'];
        } else {
            if ($this->TotalResult == -1) {
                $this->dsql->SetQuery($cquery);
                $this->dsql->execute();
                $aidarr = array();
                $aidarr[] = 0;
                while ($row = $this->dsql->getarray()) {
                    if ($this->ChannelType < 0 || $this->ChannelTypeid < 0) $aidarr[] = $row['aid'];
                    else $aidarr[] = $row['id'];
                }
                $nums = count($aidarr) - 1;
                $aids = implode(',', $aidarr);
                $delete = "DELETE FROM `#@__arccache` WHERE uptime<" . (time() - 3600 * 24);
                $this->dsql->SetQuery($delete);
                $this->dsql->executenonequery();
                $insert = "INSERT INTO `#@__arccache` (`md5hash`, `uptime`, `cachedata`)
                 VALUES('$hascode', '$uptime', '$aids')";
                $this->dsql->SetQuery($insert);
                $this->dsql->executenonequery();
                $this->TotalResult = $nums;
            }
        }
    }

    /**
     *  显示列表
     *
     * @access    public
     * @param     string
     * @return    string
     */
    function Display()
    {
        foreach ($this->dtp->CTags as $tagid => $ctag) {
            $tagname = $ctag->GetName();
            if ($tagname == "list") {
                $limitstart = ($this->PageNo - 1) * $this->PageSize;
                $row = $this->PageSize;
                if (trim($ctag->GetInnerText()) == "") {
                    $InnerText = GetSysTemplets("list_fulllist.htm");
                } else {
                    $InnerText = trim($ctag->GetInnerText());
                }
                $this->dtp->Assign(
                    $tagid,
                    $this->GetArcList(
                        $limitstart,
                        $row,
                        $ctag->GetAtt("col"),
                        $ctag->GetAtt("titlelen"),
                        $ctag->GetAtt("infolen"),
                        $ctag->GetAtt("imgwidth"),
                        $ctag->GetAtt("imgheight"),
                        $this->ChannelType,
                        $this->OrderBy,
                        $InnerText,
                        $ctag->GetAtt("tablewidth")
                    )
                );
            } else if ($tagname == "pagelist") {
                $list_len = trim($ctag->GetAtt("listsize"));
                if ($list_len == "") {
                    $list_len = 3;
                }
                $this->dtp->Assign($tagid, $this->GetPageListDM($list_len));
            } else if ($tagname == "likewords") {
                $this->dtp->Assign($tagid, $this->GetLikeWords($ctag->GetAtt('num')));
            } else if ($tagname == "hotwords") {
                $this->dtp->Assign($tagid, lib_hotwords($ctag, $this));
            } else if ($tagname == "field") {
                //类别的指定字段
                if (isset($this->Fields[$ctag->GetAtt('name')])) {
                    $this->dtp->Assign($tagid, $this->Fields[$ctag->GetAtt('name')]);
                } else {
                    $this->dtp->Assign($tagid, "");
                }
            } else if ($tagname == "channel") {
                //下级频道列表
                if ($this->TypeID > 0) {
                    $typeid = $this->TypeID;
                    $reid = $this->TypeLink->TypeInfos['reid'];
                } else {
                    $typeid = 0;
                    $reid = 0;
                }
                $GLOBALS['envs']['typeid'] = $typeid;
                $GLOBALS['envs']['reid'] = $typeid;
                $this->dtp->Assign($tagid, lib_channel($ctag, $this));
            } //End if

        }
        global $keyword,  $oldkeyword;
        if (!empty($oldkeyword)) $keyword = $oldkeyword;
        $this->dtp->Display();
    }

    /**
     *  获得文档列表
     *
     * @access    public
     * @param     int  $limitstart  限制开始  
     * @param     int  $row  行数 
     * @param     int  $col  列数
     * @param     int  $titlelen  标题长度
     * @param     int  $infolen  描述长度
     * @param     int  $imgwidth  图片宽度
     * @param     int  $imgheight  图片高度
     * @param     string  $achanneltype  列表类型
     * @param     string  $orderby  排列顺序
     * @param     string  $innertext  底层模板
     * @param     string  $tablewidth  表格宽度
     * @return    string
     */
    function GetArcList(
        $limitstart = 0,
        $row = 10,
        $col = 1,
        $titlelen = 30,
        $infolen = 250,
        $imgwidth = 120,
        $imgheight = 90,
        $achanneltype = "all",
        $orderby = "default",
        $innertext = "",
        $tablewidth = "100"
    ) {
        $typeid = $this->TypeID;
        if ($row == '') $row = 10;
        if ($limitstart == '') $limitstart = 0;
        if ($titlelen == '') $titlelen = 30;
        if ($infolen == '') $infolen = 250;
        if ($imgwidth == '') $imgwidth = 120;
        if ($imgheight = '') $imgheight = 120;
        if ($achanneltype == '') $achanneltype = '0';
        $orderby = $orderby == '' ? 'default' : strtolower($orderby);
        $tablewidth = str_replace("%", "", $tablewidth);
        if ($tablewidth == '') $tablewidth = 100;
        if ($col == '') $col = 1;
        $colWidth = ceil(100 / $col);
        $tablewidth = $tablewidth . "%";
        $colWidth = $colWidth . "%";
        $innertext = trim($innertext);
        if ($innertext == '') {
            $innertext = GetSysTemplets("search_list.htm");
        }

        //排序方式
        $ordersql = '';
        if ($this->ChannelType < 0 || $this->ChannelTypeid < 0) {
            if ($orderby == "id") {
                $ordersql = "ORDER BY arc.aid desc";
            } else {
                $ordersql = "ORDER BY arc.senddate desc";
            }
        } else {
            if ($orderby == "senddate") {
                $ordersql = " ORDER BY arc.senddate desc";
            } else if ($orderby == "pubdate") {
                $ordersql = " ORDER BY arc.pubdate desc";
            } else if ($orderby == "id") {
                $ordersql = "  ORDER BY arc.id desc";
            } else {
                $ordersql = " ORDER BY arc.sortrank desc";
            }
        }

        //搜索
        $query = "SELECT arc.*,act.typedir,act.typename,act.isdefault,act.defaultname,act.namerule,
            act.namerule2,act.ispart,act.moresite,act.siteurl,act.sitepath
            FROM `{$this->AddTable}` arc LEFT JOIN `#@__arctype` act ON arc.typeid=act.id
            WHERE {$this->AddSql} $ordersql LIMIT $limitstart,$row";

        $this->dsql->SetQuery($query);
        $this->dsql->Execute("al");
        $artlist = "";
        if ($col > 1) {
            $artlist = "<table width='$tablewidth' border='0' cellspacing='0' cellpadding='0'>\r\n";
        }
        $this->dtp2->LoadSource($innertext);
        for ($i = 0; $i < $row; $i++) {
            if ($col > 1) {
                $artlist .= "<tr>\r\n";
            }
            for ($j = 0; $j < $col; $j++) {
                if ($col > 1) {
                    $artlist .= "<td width='$colWidth'>\r\n";
                }
                if ($row = $this->dsql->GetArray("al")) {
                    if ($this->ChannelType < 0 || $this->ChannelTypeid < 0) {
                        $row["id"] = $row["aid"];
                        $row["ismake"] = empty($row["ismake"]) ? "" : $row["ismake"];
                        $row["filename"] = empty($row["filename"]) ? "" : $row["filename"];
                        $row["money"] = empty($row["money"]) ? "" : $row["money"];
                        $row["description"] = empty($row["description "]) ? "" : $row["description"];
                        $row["pubdate"] = empty($row["pubdate  "]) ? $row["senddate"] : $row["pubdate"];
                    }
                    //处理一些特殊字段
                    $row["arcurl"] = GetFileUrl(
                        $row["id"],
                        $row["typeid"],
                        $row["senddate"],
                        $row["title"],
                        $row["ismake"],
                        $row["arcrank"],
                        $row["namerule"],
                        $row["typedir"],
                        $row["money"],
                        $row['filename'],
                        $row["moresite"],
                        $row["siteurl"],
                        $row["sitepath"]
                    );
                    $row["description"] = $this->GetRedKeyWord(cn_substr($row["description"], $infolen));
                    $row["title"] = $this->GetRedKeyWord(cn_substr($row["title"], $titlelen));
                    $row["id"] =  $row["id"];
                    if ($row['litpic'] == '-' || $row['litpic'] == '') {
                        $row['litpic'] = $GLOBALS['cfg_cmspath'] . '/static/defaultpic.jpg';
                    }
                    if (!preg_match("/^http:\/\//", $row['litpic']) && $GLOBALS['cfg_multi_site'] == 'Y') {
                        $row['litpic'] = $GLOBALS['cfg_mainsite'] . $row['litpic'];
                    }
                    $row['picname'] = $row['litpic'];
                    $row["typeurl"] = GetTypeUrl($row["typeid"], $row["typedir"], $row["isdefault"], $row["defaultname"], $row["ispart"], $row["namerule2"], $row["moresite"], $row["siteurl"], $row["sitepath"]);
                    $row["info"] = $row["description"];
                    $row["filename"] = $row["arcurl"];
                    $row["stime"] = GetDateMK($row["pubdate"]);
                    $row["textlink"] = "<a href='" . $row["filename"] . "'>" . $row["title"] . "</a>";
                    $row["typelink"] = "[<a href='" . $row["typeurl"] . "'>" . $row["typename"] . "</a>]";
                    $row["imglink"] = "<a href='" . $row["filename"] . "'><img src='" . $row["picname"] . "' border='0' width='$imgwidth' height='$imgheight'></a>";
                    $row["image"] = "<img src='" . $row["picname"] . "' border='0' width='$imgwidth' height='$imgheight'>";
                    $row['plusurl'] = $row['phpurl'] = $GLOBALS['cfg_phpurl'];
                    $row['memberurl'] = $GLOBALS['cfg_memberurl'];
                    $row['templeturl'] = $GLOBALS['cfg_templeturl'];
                    if (is_array($this->dtp2->CTags)) {
                        foreach ($this->dtp2->CTags as $k => $ctag) {
                            if ($ctag->GetName() == 'array') {
                                //传递整个数组，在runphp模式中有特殊作用
                                $this->dtp2->Assign($k, $row);
                            } else {
                                if (isset($row[$ctag->GetName()])) {
                                    $this->dtp2->Assign($k, $row[$ctag->GetName()]);
                                } else {
                                    $this->dtp2->Assign($k, '');
                                }
                            }
                        }
                    }
                    $artlist .= $this->dtp2->GetResult();
                } //if hasRow

                else {
                    $artlist .= "";
                }
                if ($col > 1) $artlist .= "</td>\r\n";
            } //Loop Col

            if ($col > 1) {
                $artlist .= "</tr>\r\n";
            }
        } //Loop Line

        if ($col > 1) {
            $artlist .= "</table>\r\n";
        }
        $this->dsql->FreeResult("al");

        return $artlist;
    }

    /**
     *  获取动态的分页列表
     *
     * @access    public
     * @param     string  $list_len  列表宽度
     * @return    string
     */
    function GetPageListDM($list_len)
    {
        global $oldkeyword;
        $prepage = "";
        $nextpage = "";
        $prepagenum = $this->PageNo - 1;
        $nextpagenum = $this->PageNo + 1;
        if ($list_len == "" || preg_match("/[^0-9]/", $list_len)) {
            $list_len = 3;
        }
        $totalpage = ceil($this->TotalResult / $this->PageSize);
        if ($totalpage <= 1 && $this->TotalResult > 0) {
            return "<ul class=\"pagination justify-content-center pt-3\"><li class='page-item d-none d-sm-block disabled'><span class=\"page-link\">共1页/" . $this->TotalResult . "条记录</span></li></ul>";
        }
        if ($this->TotalResult == 0) {
            return "<ul class=\"pagination justify-content-center pt-3\"><li class='page-item d-none d-sm-block disabled'><span class=\"page-link\">共0页/" . $this->TotalResult . "条记录</span></li></ul>";
        }
        $purl = $this->GetCurUrl();

        $oldkeyword = (empty($oldkeyword) ? $this->Keyword : $oldkeyword);

        //当结果超过限制时，重设结果页数
        if ($this->TotalResult > $this->SearchMaxRc) {
            $totalpage = ceil($this->SearchMaxRc / $this->PageSize);
        }
        $infos = "<li class='page-item d-none d-sm-block disabled'><span class=\"page-link\">共找到<b>" . $this->TotalResult . "</b>条记录/最大显示<b>{$totalpage}</b>页</span></li>\r\n";
        $geturl = "keyword=" . urlencode($oldkeyword) . "&searchtype=" . $this->SearchType;
        $hidenform = "<input type='hidden' name='keyword' value='" . rawurldecode($oldkeyword) . "'>\r\n";
        $geturl .= "&channeltype=" . $this->ChannelType . "&orderby=" . $this->OrderBy;
        $hidenform .= "<input type='hidden' name='channeltype' value='" . $this->ChannelType . "'>\r\n";
        $hidenform .= "<input type='hidden' name='orderby' value='" . $this->OrderBy . "'>\r\n";
        $geturl .= "&kwtype=" . $this->KType . "&pagesize=" . $this->PageSize;
        $hidenform .= "<input type='hidden' name='kwtype' value='" . $this->KType . "'>\r\n";
        $hidenform .= "<input type='hidden' name='pagesize' value='" . $this->PageSize . "'>\r\n";
        $geturl .= "&typeid=" . $this->TypeID . "&TotalResult=" . $this->TotalResult . "&";
        $hidenform .= "<input type='hidden' name='typeid' value='" . $this->TypeID . "'>\r\n";
        $hidenform .= "<input type='hidden' name='TotalResult' value='" . $this->TotalResult . "'>\r\n";
        $purl .= "?" . $geturl;

        //获得上一页和下一页的链接
        if ($this->PageNo != 1) {
            $prepage .= "<li class='page-item'><a class='page-link' href='" . $purl . "PageNo=$prepagenum'>上一页</a></li>\r\n";
            $indexpage = "<li class='page-item'><a class='page-link' href='" . $purl . "PageNo=1'>首页</a></li>\r\n";
        } else {
            $indexpage = "<li class='page-item disabled'><a class='page-link'>首页</a></li>\r\n";
        }
        if ($this->PageNo != $totalpage && $totalpage > 1) {
            $nextpage .= "<li class='page-item'><a class='page-link' href='" . $purl . "PageNo=$nextpagenum'>下一页</a></li>\r\n";
            $endpage = "<li class='page-item'><a class='page-link' href='" . $purl . "PageNo=$totalpage'>末页</a></li>\r\n";
        } else {
            $endpage = "<li class='page-item'><a class='page-link'>末页</a></li>\r\n";
        }

        //获得数字链接
        $listdd = "";
        $total_list = $list_len * 2 + 1;
        if ($this->PageNo >= $total_list) {
            $j = $this->PageNo - $list_len;
            $total_list = $this->PageNo + $list_len;
            if ($total_list > $totalpage) {
                $total_list = $totalpage;
            }
        } else {
            $j = 1;
            if ($total_list > $totalpage) {
                $total_list = $totalpage;
            }
        }
        for ($j; $j <= $total_list; $j++) {
            if ($j == $this->PageNo) {
                $listdd .= "<li class='page-item active'><a class='page-link'>$j&nbsp;</a></li>\r\n";
            } else {
                $listdd .= "<li class='page-item'><a class='page-link' href='" . $purl . "PageNo=$j'>" . $j . "</a>&nbsp;</li>\r\n";
            }
        }
        $plist = "";
        // $plist  =  "<table border='0' cellpadding='0' cellspacing='0'>\r\n";
        // $plist .= "<tr align='center' style='font-size:10pt'>\r\n";
        $plist .= "<form name='pagelist' action='" . $this->GetCurUrl() . "'>$hidenform";
        $plist .= "<ul class=\"pagination justify-content-center pt-3\">";
        $plist .= $infos;
        $plist .= $indexpage;
        $plist .= $prepage;
        $plist .= $listdd;
        $plist .= $nextpage;
        $plist .= $endpage;
        // if($totalpage>$total_list)
        // {
        //     $plist.="<td width='38'><input type='text' name='PageNo' style='width:28px;height:14px' value='".$this->PageNo."' /></td>\r\n";
        //     $plist.="<td width='30'><input type='submit' name='plistgo' value='GO' style='width:30px;height:22px;font-size:9pt' /></td>\r\n";
        // }
        $plist .= "</ul></form>\r\n";
        return $plist;
    }

    /**
     *  获得当前的页面文件的url
     *
     * @access    public
     * @return    string
     */
    function GetCurUrl()
    {
        if (!empty($_SERVER["REQUEST_URI"])) {
            $nowurl = $_SERVER["REQUEST_URI"];
            $nowurls = explode("?", $nowurl);
            $nowurl = $nowurls[0];
        } else {
            $nowurl = $_SERVER["PHP_SELF"];
        }
        return $nowurl;
    }
}//End Class