网站搜索关键词记录总有英文的恶意关键词搜索提交，导致destoon后台的搜索关键词记录一大堆垃圾无效的搜索关键词，所以就重新在官方默认的基础上修改过滤英文及拼音关键词搜索，话不多说，看教程，不限destoon版本
找到/include/module.func.php
在14行左右，找到：function keyword($kw, $items, $moduleid)
替换这段函数改为以下即可：
function keyword($kw, $items, $moduleid) {
global $DT;
//判断搜索字符串长度
if(!$DT['search_kw'] || $items < 2 || strlen($kw) < 3 || strlen($kw) > 120 || strpos($kw, ' ') !== false||strpos($kw, '_') !== false) return;
$kw = addslashes($kw);
//判断是否有关键词
$r = DB::get_one("SELECt * FROM ".DT_PRE."keyword WHERe moduleid=$moduleid AND word='$kw' ORDER BY itemid ASC");
if($r) {
$letter = trim(gb2py($kw));
$items = $items > $r['items'] ? $items : $r['items'];
$month_search = date('Y-m', $r['updatetime']) == date('Y-m', DT_TIME) ? 'month_search+1' : '1';
$week_search = date('W', $r['updatetime']) == date('W', DT_TIME) ? 'week_search+1' : '1';
$today_search = date('Y-m-d', $r['updatetime']) == date('Y-m-d', DT_TIME) ? 'today_search+1' : '1';
if($letter==$kw){
DB::query("DELETE FROM ".DT_PRE."keyword WHERe moduleid=$moduleid AND word='$kw' ");
}
DB::query("UPDATe ".DT_PRE."keyword SET items='$items',updatetime='".DT_TIME."',total_search=total_search+1,month_search=$month_search,week_search=$week_search,today_search=$today_search WHERe itemid=$r[itemid]");
DB::query("DELETE FROM ".DT_PRE."keyword WHERe moduleid=$moduleid AND word='$kw' AND itemid>$r[itemid]");
} else {
$letter = trim(gb2py($kw));
$status = $DT['search_check_kw'] ? 2 : 3;
if(strlen($letter) < 2) $status = 2;
//判断拼音和中文是否一致，如果一致就不入库
if($letter==$kw){
DB::query("DELETe FROM ".DT_PRE."keyword WHERe moduleid=$moduleid AND word='$kw' ");
}else{
DB::query("INSERT INTO ".DT_PRE."keyword (moduleid,word,keyword,letter,items,updatetime,total_search,month_search,week_search,today_search,status) VALUES ('$moduleid','$kw','$kw','$letter','$items','".DT_TIME."','1','1','1','1','$status')");
}
}
}代码完成，在后台更新下数据，清除下缓存，即可
