在介绍个这两天折腾的东西phpsou 开源的搜索 - 全球主机交流论坛

CREATE TABLE IF NOT EXISTS `ve123_links` (
`link_id` mediumint(9) NOT NULL auto_increment,
`title` varchar(225) NOT NULL,
`tuiguang` int(11) NOT NULL,
`site_id` mediumint(9) NOT NULL,
`url` varchar(325) NOT NULL,
`keywords` mediumtext NOT NULL,
`description` mediumtext NOT NULL,
`fulltxt` mediumtext NOT NULL,
`pagesize` float NOT NULL,
`level` int(11) NOT NULL,
`addtime` int(11) NOT NULL,
`updatetime` int(11) NOT NULL,
`lrymd5` varchar(32) NOT NULL,
PRIMARY KEY (`link_id`)
) ENGINE=MyISAM DEFAULT CHARSET=gbk AUTO_INCREMENT=1 ;

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function q($wd,$domain='')
{
global $db;
$this->db = &$db;
$this->wd=$wd;
require "../include/splitword.func.php";
$sp = new SplitWord();
$wd_split = $sp->SplitRMM($wd);
$sp->Clear();
$this->wd_split=$wd_split = ereg_replace("[ ]{1,}"," ",trim($wd_split));
$this->wd_array=$wd_array=explode(" ",$wd_split);
$this->wd_count=$wd_count=count($wd_split);//echo $wd_count;
$tgarray=$this->GetTg();
$tgarray_count=count($tgarray);
$ordersql=" order by links.tuiguang desc,(";
foreach($wd_array as $value)
{
$ordersql.="(case when links.title like '%".$value."%' then 1 else 0 end)+";
}
$ordersql.="(case when links.title like '%".$wd."%' then 8 else 0 end)";
// $ordersql=rtrim($ordersql,"+");
$ordersql.=") desc";
$keywordsql=$this->GetKeywordSql("links.title,' ',links.url");
if(empty($keywordsql))
{
$keywordsql="links.title like '%".$wd."%'";
}
if(empty($domain))
{
$sql="select links.*,sites.qp from ve123_links links left join ve123_sites sites on links.site_id=sites.site_id where links.title<>'' and ".$keywordsql.$ordersql;
}
else
{
if($domain==getdomain($domain))
{
$sql="select * from ve123_links where title<>'' and url like '%.".$domain."%' or url like '%//".$domain."%'"; //echo $sql;
}
else
{
$sql="select * from ve123_links where title<>'' and url regexp 'http://".$domain."'";//echo $sql;
}
}
//echo $sql;
$query=$db->query($sql);
$this->total=$total=$db->num_rows($query)+$tgarray_count;
$pagesize=10;
$this->totalpage=$totalpage=ceil($total/$pagesize);
$p=intval($_GET["p"]);
if($p<=0){$p=1;}
$offset=($p-1)*$pagesize;
$query=$db->query($sql." limit $offset,$pagesize");
while($row=$db->fetch_array($query))
{
$data["title"]=$this->GetRedKeyWord(str_cut($row["title"],50));
if(!$row["description"])$row["description"] = $row["fulltxt"];
$data["txt"]=$this->GetRedKeyWord(str_cut($row["description"],250));
$data["url"]=str_cut($row["url"],400);
$data["updatetime"]=date("Y-m-d",$row["updatetime"]);
$data["pagesize"]=$row["pagesize"];
$data["link_id"]=$row["link_id"];
$data["tuiguang"]=$row["tuiguang"];
$array[] = $data;
}
$array_count=count($array);
if(empty($array_count))
{
$newarray=$tgarray;
}
elseif($p==1&&$tgarray_count>0)
{
$newarray=array_merge($tgarray,$array);
}
else
{
$newarray=$array;
}
return $newarray;
}

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