�组保留的标签 余下为需要删除的标签
                unset($oldtag[$key]);
            }
        }
    }
    

    if (!empty($oldtag)) {
        $tagids = array();
        foreach ($oldtag as $tagid => $tagname) {
            $tagids[] = $tagid;
        }

        well_oldtag_delete($tagids, $tid);
    }

    $r = well_tag_process($tid, $fid, $create_tag, $tagarr);

    

    return $r;
}

// 删除标签和绑定的主题
function well_oldtag_delete($tagids, $tid)
{
    

    $pagesize = count($tagids);
    $arrlist = well_tag_find_by_tagids($tagids, 1, $pagesize);

    

    $delete_tagids = array(); // 删除
    $tagids = array();
    $n = 0;
    foreach ($arrlist as $val) {
        ++$n;
        
        if (1 == $val['count']) {
            // 只有一个主题
            $delete_tagids[] = $val['tagid'];
            
        } else {
            $tagids[] = $val['tagid'];
        }
        
    }

    

    !empty($delete_tagids) and well_tag_delete($delete_tagids);

    $arlist = well_tag_thread_find_by_tid($tid, 1, $n);
    if ($arlist) {
        $ids = array();
        foreach ($arlist as $val) $ids[] = $val['id'];

        well_tag_thread_delete($ids);
    }

    !empty($tagids) and well_tag_update($tagids, array('count-' => 1));

    
}

// 标签数据处理 $arr=新提交的数组 $tagarr=保留的旧标签
function well_tag_process($tid, $fid, $new_tags = array(), $tagarr = array())
{
    if (empty($tid)) return '';

    

    // 新标签处理入库
    if ($new_tags) {

        

        $threadarr = array();
        $tagids = array();
        $i = 0;
        $size = 5;
        $n = count($tagarr);
        $n = $n > $size ? $size : $size - $n;

        

        foreach ($new_tags as $name) {
            ++$i;
            $name = trim($name);
            $name = stripslashes($name);
            $name = strip_tags($name);
            $name = str_replace(array('&nbsp;', '#', "@", "$", "%", "^", '&', '·', '<', '>', '；', '`', '~', '!', '￥', '……', ';', '?', '？', '-', '—', '_', '=', '+', '.', '{', '}', '|', ':', '：', '、', '/', '。', '[', ']', '【', '】', '‘', '	', '    ', '  ', '   ', '    '), '', $name);
            $name = htmlspecialchars($name, ENT_QUOTES);
            if ($name && $i <= $n) {
                
                // 查询标签
                $read = well_tag_read_name($name);
                
                if ($read) {
                    // 存在 count+1
                    $tagids[] = $read['tagid'];
                    
                } else {
                    // 入库
                    $arr = array('name' => $name, 'count' => 1);
                    
                    $tagid = well_tag_create($arr);
                    FALSE === $tagid and message(-1, lang('create_failed'));
                    $read = array('tagid' => $tagid, 'name' => $name);
                    
                }

                $tag_thread = array('tagid' => $read['tagid'], 'tid' => $tid);

                

                $threadarr[] = $tag_thread;

                

                $tagarr[$read['tagid']] = $read['name'];
            }
        }

        

        !empty($threadarr) and tag_thread_big_insert($threadarr);

        !empty($tagids) and well_tag_update($tagids, array('count+' => 1));
    }

    

    $json = empty($tagarr) ? '' : xn_json_encode($tagarr);

    

    return $json;
}




?>    
    $cache[$key] = empty($arr) ? NULL : $arr;
    
    return $cache[$key];
}

// 门户 获取需要在频道显示的栏目主题数据
function portal_channel_thread($fid)
{
    global $forumlist;
    if (empty($fid)) return NULL;

    

    $orderby = array('tid' => 1);
    $page = 1;

    

    // 遍历所有在频道显示内容的栏目
    $category_forumlist = channel_category($fid);

    $arrlist = array();
    $forum_tids = array();
    $tidlist = array();

    

    if ($category_forumlist) {
        foreach ($category_forumlist as &$_forum) {

            

            // 频道显示数据
            $arrlist['list'][$_forum['fid']] = array(
                'fid' => $_forum['fid'],
                'name' => $_forum['name'],
                'rank' => $_forum['rank'],
                'type' => $_forum['type'],
                'url' => $_forum['url'],
                'channel_new' => $_forum['channel_new'],
                
            );

            

            $forum_thread = thread_tid__find(array('fid' => $_forum['fid']), $orderby, $page, $_forum['channel_new'], 'tid', array('tid'));
            // 最新信息按栏目分组
            foreach ($forum_thread as $key => $_thread) {
                $forum_tids[$key] = $_thread;
            }

            

            unset($forum_thread);
        }
        $tidlist += $forum_tids;
    }

    

    unset($category_forumlist);

    

    // 获取属性对应的tid集合
    list($flaglist, $flagtids) = flag_thread_by_fid($fid);
    empty($flagtids) || $tidlist += $flagtids;

    

    unset($flagtids);

    

    // 频道置顶
    $stickylist = sticky_list_thread($fid);
    empty($stickylist) || $tidlist += $stickylist;

    

    // 在这之前合并所有二维数组 tid值为键/array('tid值' => tid值)
    $tidarr = arrlist_values($tidlist, 'tid');

    // 在这之前使用$tidarr = array_merge($tidarr, $arr)前合并所有一维数组 tid/array(1,2,3)
    

    if (empty($tidarr)) {
        $arrlist['list'] = isset($arrlist['list']) ? array_multisort_key($arrlist['list'], 'rank', FALSE, 'fid') : array();
        return $arrlist;
    }

    $tidarr = array_unique($tidarr);

    

    $pagesize = count($tidarr);

    

    // 遍历获取的所有tid主题
    $threadlist = well_thread_find_asc($tidarr, $pagesize);

    

    // 遍历时为升序，翻转为降序
    $threadlist = array_reverse($threadlist);

    

    foreach ($threadlist as &$_thread) {

        

        // 各栏目最新内容
        isset($forum_tids[$_thread['tid']]) AND $arrlist['list'][$_thread['fid']]['news'][$_thread['tid']] = $_thread;

        // 全站置顶内容
        isset($stickylist[$_thread['tid']]) AND $arrlist['sticky'][$_thread['tid']] = $_thread;

        // 首页属性主题
        if (!empty($flaglist)) {
            foreach ($flaglist as $key => $val) {

                if (isset($val['tids']) && in_array($_thread['tid'], $val['tids'])) {

                    $arrlist['flaglist'][$key][array_search($_thread['tid'], $val['tids'])] = $_thread;
                    ksort($arrlist['flaglist'][$key]);

                    $arrlist['flag'][$_thread['tid']] = $_thread;
                }
            }
        }

        
    }

    unset($threadlist);

    if (isset($arrlist['sticky'])) {
        $i = 0;
        foreach ($arrlist['sticky'] as &$val) {
            ++$i;
            $val['i'] = $i;
        }
    }

    if (isset($arrlist['flag'])) {
        $i = 0;
        foreach ($arrlist['flag'] as &$val) {
            ++$i;
            $val['i'] = $i;
        }
    }

    if (isset($arrlist['flaglist'])) {
        foreach ($arrlist['flaglist'] as &$val) {
            $i = 0;
            foreach ($val as &$v) {
                ++$i;
                $v['i'] = $i;
            }
        }
    }

    

    isset($arrlist['list']) AND $arrlist['list'] = array_multisort_key($arrlist['list'], 'rank', FALSE, 'fid');

    

    return $arrlist;
}




?>   $v = implode(",", $v);
        $temp[] = $v;
    }
    // 去掉重复的字符串,也就是重复的一维数组
    $temp = array_unique($temp);
    // 再将拆开的数组重新组装
    $output = array();
    foreach ($temp as $k => $v) {
        if ($stkeep) $k = $starr[$k];
        if ($ndformat) {
            $temparr = explode(",", $v);
            foreach ($temparr as $ndkey => $ndval) $output[$k][$ndarr[$ndkey]] = $ndval;
        } else $output[$k] = explode(",", $v);
    }
    return $output;
}

// 合并二维数组 如重复 值以第一个数组值为准
function array2_merge($array1, $array2, $key = '')
{
    if (empty($array1) || empty($array2)) return NULL;
    $arr = array();
    foreach ($array1 as $k => $v) {
        isset($v[$key]) ? $arr[$v[$key]] = array_merge($v, $array2[$k]) : $arr[] = array_merge($v, $array2[$k]);
    }
    return $arr;
}

/*
 * 对二维数组排序 两个数组必须有一个相同的键值
 * $array1 需要排序数组
 * $array2 按照该数组key排序
 * */
function array2_sort_key($array1, $array2, $key = '')
{
    if (empty($array1) || empty($array2)) return NULL;
    $arr = array();
    foreach ($array2 as $k => $v) {
        if (isset($v[$key]) && $v[$key] == $array1[$v[$key]][$key]) {
            $arr[$v[$key]] = $array1[$v[$key]];
        } else {
            $arr[] = $v;
        }
    }

    return $arr;
}




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