ecshop商品关键词模糊分词搜索插件，商品列表关键字加红功能

ECSHOP商品关键词模糊分词搜索商品列表关键字加红功能。最近给客户做一个ECSHOP商城，发现ECSHOP的模糊搜索要求太高，需要加入and、空格、加号等，客户搜索的时候不可能这样操作。
考虑到工期的问题，采用了织梦的分词算法，搜索效果虽然不是特别理想，但是这么短的时间也只能这样了。
在此分享给没钱又着急的朋友，需要用到的文件在文章末尾提供下载，大家下载后也可以直接覆盖使用。
一、ECSHOP联想下拉框
1、修改page_header.lbi模版文件，将搜索文本框修改为：

<inputname="keywords"type="text"id="keyword"value="<!--{if ($search_keywords neq "")}{$search_keywords|escape}--><!--{else}-->ecshop<!--{/if}-->" class="search-input" onfocus="if(this.value=='ecshop'){this.value='';this.style.color='#000';}" onblur="closediv();if(this.value==''){this.value='ecshop';this.style.color='#999';}" style="color:#999;" onkeyup="keyupdeal(event,this.value);" onkeydown="keydowndeal(event);" onclick="keyupdeal(event,this.value);" autocomplete="off" /><divid="search_suggest"style="display:none;"onmouseover='javascript:_over();'onmouseout='javascript:_out();'></div>

嵌入js文件
<scripttype="text/javascript"src="/js/suggest.js"></script>
嵌入css文件
<linkhref="/themes/default/images/css.css"rel="stylesheet"type="text/css">
2、根目录添加php文件search_suggest.php文件
二、分词搜索
ECSHOP教程根目录增加织梦分词算法函数和词库：lib_splitword_full.php和dededic.csv
1、修改search.php文件 96行
/*检查关键字中是否有空格，如果存在就是并*/$arr=explode(' ',$_REQUEST['keywords']);$operator= " AND ";
改为：
/*调用织梦分词功能-start*/require("lib_splitword_full.php");$sp=newSplitWord();$fenci=$sp->SplitRMM($_REQUEST['keywords']);$sp->Clear();/*织梦分词后是使用空格进行划分，所以仍可使用ecshop的按照空格拆分为数组功能：检查关键字中是否有空格，如果存在就是并*/$arr=explode(' ',$fenci);$arr=array_reverse($arr);//将数组倒序排列，并插入完整关键字到数组末尾$arr[count($arr)]=$_REQUEST['keywords'];$arr=array_reverse($arr);//再次将数组倒序，使完整关键字可以 个被检索array_pop($arr);//删除织梦分词产生的数组最后一个元素为空格$operator= " and ";//sql检索语句使用union联合检索$ hong=$arr;//$arr数组在飘红的时候已经被产品列表占用了，所以另外赋值给一个数组备用。/*调用织梦分词功能-end*/
2、修改search.php文件第382行到403行

/*获得符合条件的商品总数*/$sql= "SELECT COUNT(*) FROM " .$ecs->table('goods'). " AS g ". "WHERE g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1$attr_in". "AND (( 1 " .$categories.$keywords.$brand.$min_price.$max_price.$intro.$outstock." ) ".$tag_where." )";$count=$db->getOne($sql);$max_page= ($count> 0) ?ceil($count/$size) : 1;if($page>$max_page) {$page=$max_page; }/*查询商品*/$sql= "SELECT g.goods_id, g.goods_name, g.market_price, g.is_new, g.is_best, g.is_hot, g.shop_price AS org_price, ". "IFNULL(mp.user_price, g.shop_price * '$_SESSION[discount]') AS shop_price, ". "g.promote_price, g.promote_start_date, g.promote_end_date, g.goods_thumb, g.goods_img, g.goods_brief, g.goods_type ". "FROM " .$ecs->table('goods'). " AS g ". "LEFT JOIN " .$GLOBALS['ecs']->table('member_price') . " AS mp ". "ON mp.goods_id = g.goods_id AND mp.user_rank = '$_SESSION[user_rank]' ". "WHERE g.is_delete = 0 AND g.is_on_sale = 1 AND g.is_alone_sale = 1$attr_in". "AND (( 1 " .$categories.$keywords.$brand.$min_price.$max_price.$intro.$outstock. " ) ".$tag_where." ) " . "ORDER BY$sort$order";

打开 /includes/lib_goods.php 文件（建议使用editplus）找到下面代码（大概在287行左右）
/*sun04zh3-20130905-调用织梦分词功能-更改ecshop的sql语句采用union方式-start*//*因为后面要用union生成数据集表，所以先根据拆分出的关键词，生成union所需的所有sql语句，*/$select= "(";foreach($arrAS$se=>$t) {$select.= "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type FROM(select click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type from".$ecs->table('goods')." where goods_name like '%$t%' order by click_count desc) AS P$se";// 个关键词是完整关键词if($se==0)//插入一个当所有拆分关键词在商品名称中为and时的sql语句{$select.= " UNION SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type FROM(select click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type from".$ecs->table('goods')." where 1$keywordsorder by click_count desc) AS Pa"; }if($se<count($arr)-1)//在每条select语句后增加union，最后一个不加，所以$se小于元素数量-1{$select.=" UNION "; } }$select.=")";if($select=="()")//当关键词为空时，没有拆分关键词，所以用于union的$select为空，仍需要调用goods表{$sql= "SELECT COUNT(*) FROM ".$ecs->table("goods")." AS P " . "WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1 "; }else{/*获得符合条件的商品总数*/$sql= "SELECT COUNT(*) FROM$selectAS P " . "WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1 "; }$count=$db->getOne($sql);$max_page= ($count> 0) ?ceil($count/$size) : 1;if($page>$max_page) {$page=$max_page; }if($select=="()")//当关键词为空时，没有拆分关键词，所以用于union的$select为空，仍需要调用goods表{/*查询商品*/$sql= "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type ". "FROM ".$ecs->table("goods")." AS P " . "WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1 "; }else{/*查询商品*/$sql= "SELECT click_count,goods_sn,is_alone_sale,is_on_sale,is_delete,goods_id, goods_name, market_price, is_new, is_best, is_hot, shop_price AS org_price, shop_price ,promote_price, promote_start_date, promote_end_date, goods_thumb, goods_img, goods_brief, goods_type ". "FROM$selectAS P " . "WHERE is_delete = 0 AND is_on_sale = 1 AND is_alone_sale = 1 "; }
三、搜索出的产品列表产品关键词飘红功能：
1、修改search.php文件第473行到480行
if($display== 'grid') {$arr[$row['goods_id']]['goods_name'] =$GLOBALS['_CFG']['goods_name_length'] > 0 ? sub_str($row['goods_name'],$GLOBALS['_CFG']['goods_name_length']) :$row['goods_name']; }else{$arr[$row['goods_id']]['goods_name'] =$row['goods_name']; }
修改为：
/*根据分词对产品名称进行替换-start*/$tihuan=$row["goods_name"];foreach($ hongAS$ph_count=>$ph) {$tihuan=str_replace($ph,"<b style='color:#d90000'>$ph</b>",$tihuan); }$arr[$row['goods_id']]['goods_name'] =$row['goods_name'];//因为前台用到没有替换的商品名称，所以保留goods_name值$arr[$row['goods_id']]['tihuan'] =$tihuan;/*根据分词对产品名称进行替换-end*/
2、修改search.dwt模板文件
将显示商品名称的地方替换为：
<p><a href="{$goods.url}" title="{$goods.name|escape:html}">{$goods.tihuan}</a></p>
四、文中所有涉及的修改和要用到的文件
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