首页四格最新主题排序算法，如何修改为回复时间排序
算法在source/module/forum/forum_index.php[*]$grids = array();
[*]if($_G['setting']['grid']['showgrid']) {
[*] loadcache('grids');
[*] $cachelife = $_G['setting']['grid']['cachelife'] ? $_G['setting']['grid']['cachelife'] : 600;
[*] $now = dgmdate(TIMESTAMP, lang('forum/misc', 'y_m_d')).' '.lang('forum/misc', 'week_'.dgmdate(TIMESTAMP, 'w'));
[*] if(TIMESTAMP - $_G['cache']['grids']['cachetime'] < $cachelife) {
[*] $grids = $_G['cache']['grids'];
[*] } else {
[*] $images = array();
[*] $_G['setting']['grid']['fids'] = in_array(0, $_G['setting']['grid']['fids']) ? 0 : $_G['setting']['grid']['fids'];
[*]
[*] if($_G['setting']['grid']['gridtype']) {
[*] $grids['digest'] = C::t('forum_thread')->fetch_all_for_guide('digest', 0, array(), 3, 0, 0, 10, $_G['setting']['grid']['fids']);
[*] } else {
[*] $images = C::t('forum_threadimage')->fetch_all_order_by_tid_for_guide(10, 0, $_G['setting']['grid']['fids']);
[*] foreach($images as $key => $value) {
[*] $tids[$value['tid']] = $value['tid'];
[*] }
[*] $grids['image'] = C::t('forum_thread')->fetch_all_by_tid($tids);
[*] }
[*] $grids['newthread'] = C::t('forum_thread')->fetch_all_for_guide('newthread', 0, array(), 0, 0, 0, 10, $_G['setting']['grid']['fids']);
[*]
[*] $grids['newreply'] = C::t('forum_thread')->fetch_all_for_guide('reply', 0, array(), 0, 0, 0, 10, $_G['setting']['grid']['fids']);
[*] $grids['hot'] = C::t('forum_thread')->fetch_all_for_guide('hot', 0, array(), 3, 0, 0, 10, $_G['setting']['grid']['fids']);
[*]
[*] $_G['forum_colorarray'] = array('', '#EE1B2E', '#EE5023', '#996600', '#3C9D40', '#2897C5', '#2B65B7', '#8F2A90', '#EC1282');
[*] foreach($grids as $type => $gridthreads) {
[*] foreach($gridthreads as $key => $gridthread) {
[*] $gridthread['dateline'] = str_replace('"', '\'', dgmdate($gridthread['dateline'], 'u', '9999', getglobal('setting/dateformat')));
[*] $gridthread['lastpost'] = str_replace('"', '\'', dgmdate($gridthread['lastpost'], 'u', '9999', getglobal('setting/dateformat')));
[*] if($gridthread['highlight'] && $_G['setting']['grid']['highlight']) {
[*] $string = sprintf('%02d', $gridthread['highlight']);
[*] $stylestr = sprintf('%03b', $string);
[*]
[*] $gridthread['highlight'] = ' style="';
[*] $gridthread['highlight'] .= $stylestr ? 'font-weight: bold;' : '';
[*] $gridthread['highlight'] .= $stylestr ? 'font-style: italic;' : '';
[*] $gridthread['highlight'] .= $stylestr ? 'text-decoration: underline;' : '';
[*] $gridthread['highlight'] .= $string ? 'color: '.$_G['forum_colorarray'][$string] : '';
[*] $gridthread['highlight'] .= '"';
[*] } else {
[*] $gridthread['highlight'] = '';
[*] }
[*] if($_G['setting']['grid']['textleng']) {
[*] $gridthread['oldsubject'] = dhtmlspecialchars($gridthread['subject']);
[*] $gridthread['subject'] = cutstr($gridthread['subject'], $_G['setting']['grid']['textleng']);
[*] }
[*]
[*] $grids[$type][$key] = $gridthread;
[*] }
[*] }
[*] if(!$_G['setting']['grid']['gridtype']) {
[*]
[*] $grids['slide'] = $focuspic = $focusurl = $focustext = array();
[*] $grids['focus'] = 'config=5|0xffffff|0x0099ff|50|0xffffff|0x0099ff|0x000000';
[*] foreach($grids['image'] as $ithread) {
[*] if($ithread['displayorder'] < 0) {
[*] continue;
[*] }
[*] if($images[$ithread['tid']]['remote']) {
[*] $imageurl = $_G['setting']['ftp']['attachurl'].'forum/'.$images[$ithread['tid']]['attachment'];
[*] } else {
[*] $imageurl = $_G['setting']['attachurl'].'forum/'.$images[$ithread['tid']]['attachment'];
[*] }
[*] $grids['slide'][$ithread['tid']] = array(
[*] 'image' => $imageurl,
[*] 'url' => 'forum.php?mod=viewthread&tid='.$ithread['tid'],
[*] 'subject' => addslashes($ithread['subject'])
[*] );
[*] }
[*] $grids['slide'] = array_reverse($grids['slide'], true);
[*] }
[*] $grids['cachetime'] = TIMESTAMP;
[*] savecache('grids', $grids); }
模板插入点
template/default/touch/forum/discuz.htm
[*]</div>
[*] <div id="tabs-box" class="swiper-container listbox cl">
[*] <div class="swiper-wrapper">
[*] <div class="swiper-slide">
[*] <ul>
[*] <!--{loop $grids['newthread'] $thread}-->
[*] <!--{if !$thread['forumstick'] && $thread['closed'] > 1 && ($thread['isgroup'] == 1 || $thread['fid'] != $_G['fid'])}-->
[*] <!--{eval $thread['tid']=$thread['closed'];}-->
[*] <!--{/if}-->
[*] <!--{eval $i++;}-->
[*] <!--{eval $typeid = $tids_typeids[$thread['tid']];}-->
[*] <li><a href="forum.php?mod=viewthread&tid=$thread['tid']"{if $thread['highlight']} $thread['highlight']{/if}><span class="mybk">[{$typeid_name[$typeid]}]</span><span class="mnum">$i</span>{$thread['oldsubject']}</a></li>
[*] <!--{/loop}-->
[*] </ul> </div>
来源：https://www.dismall.com/thread-23002-1-1.html
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