帝国cms常用调用代码SEO方向

网站优化每次找代码很麻烦，所以我这里给备用一下，包括一些自定义的函数，其实大多数都是PHP代码
第一类：高效率随机调用代码
<?php
$randnum=32; //随机数量
$randids='';
$randdh='';
for($i=1;$i<=$randnum;$i++)
{
$randids.=$randdh.rand(1,100); //1为最小ID，100000为最大ID
$randdh=',';
}
?> [e:loop={1,32,0,0,"id in ($randids)"}]      
<li>
<a href="<?=$bqsr['titleurl']?>" title="<?=$bqr['title']?>"><?=$bqr['title']?></a>
</li>                  
[/e:loop]
随机高效率进化版：
这个版本的代码，主要是为了方便调取指定栏目的随机文章，为了方便模板的编辑，所以没有封装成函数
<?php
$file_cache = ECMS_PATH."news.json";
//缓存整个news表的数据
if(!file_exists($file_cache)){
    //查询分类
    $hm_class=$empire->query("select classid from {$dbtbpre}enewsclass");   
    while($hm_r=$empire->fetch($hm_class))
    {
        //查询分类下面的所有id
        $hm_news=$empire->query("SELECT id FROM `{$dbtbpre}ecms_news` WHERE `classid` = {$hm_r[classid]}");   
        while($hm_nr=$empire->fetch($hm_news))
        {
            $news_data[$hm_r['classid']][] = $hm_nr[id];
        }
    }
    file_put_contents($file_cache,json_encode($news_data));
}
//获取缓存数据表
$file_arrs = json_decode(file_get_contents($file_cache),true);
//根据数据表获取id，每个栏目随机分配文章id
foreach($file_arrs as $k=>$v){
    $num = count($v)-1;
    //增加变量
    for ($rani=1; $rani<=30; $rani++){
        $rand_id.= $v[mt_rand(0,$num)].",";    
    }
    $rand_id = rtrim($rand_id,",");
    $rand_data[] = $rand_id;
    $rand_id = "";
    $rani=1;
}
?>
调用方式：
<?php
$classid = $rand_data[$class_r[$GLOBALS[navclassid]][classid]-1];
?>
[ecmsinfo]0,20,32,0,3,14,0,"id in ($classid)"[/ecmsinfo]
高效率随机调用tag
<code class="hljs language-php-template"><span class="language-php"><span class="hljs-meta"><?php</span>
<span class="hljs-variable">$num</span>=<span class="hljs-variable">$empire</span>-><span class="hljs-title function_ invoke__">num</span>(<span class="hljs-string">"select tagid from <span class="hljs-subst">{$dbtbpre}</span>enewstags"</span>);
<span class="hljs-variable">$randnum</span>=<span class="hljs-number">100</span>; 
<span class="hljs-variable">$randids</span>=<span class="hljs-string">''</span>; 
<span class="hljs-variable">$randdh</span>=<span class="hljs-string">''</span>; 
<span class="hljs-keyword">for</span>(<span class="hljs-variable">$i</span>=<span class="hljs-number">1</span>;<span class="hljs-variable">$i</span><=<span class="hljs-variable">$randnum</span>;<span class="hljs-variable">$i</span>++) 
{ 
<span class="hljs-variable">$randids</span>.=<span class="hljs-variable">$randdh</span>.<span class="hljs-title function_ invoke__">rand</span>(<span class="hljs-number">1</span>,<span class="hljs-variable">$num</span>); 
<span class="hljs-variable">$randdh</span>=<span class="hljs-string">','</span>;
} 
<span class="hljs-meta">?></span></span><span class="language-xml">
[e:loop={"select tagname,tagid from phome_enewstags where tagid in ($randids)  limit $randnum",32,24,0}]
<span class="hljs-tag"><<span class="hljs-name">a</span> <span class="hljs-attr">target</span>=<span class="hljs-string">"_blank"</span> <span class="hljs-attr">href</span>=<span class="hljs-string">"/tag/</span></span></span><span class="language-php"><span class="hljs-meta"><?=</span><span class="hljs-variable">$bqr</span>[<span class="hljs-string">'tagid'</span>]<span class="hljs-meta">?></span></span><span class="language-xml"><span class="hljs-tag"><span class="hljs-string">/"</span> <span class="hljs-attr">title</span>=<span class="hljs-string">"</span></span></span><span class="language-php"><span class="hljs-meta"><?=</span><span class="hljs-variable">$bqr</span>[<span class="hljs-string">'tagname'</span>]<span class="hljs-meta">?></span></span><span class="language-xml"><span class="hljs-tag"><span class="hljs-string">"</span>></span></span><span class="language-php"><span class="hljs-meta"><?=</span><span class="hljs-variable">$bqr</span>[<span class="hljs-string">'tagname'</span>]<span class="hljs-meta">?></span></span><span class="language-xml"><span class="hljs-tag"></<span class="hljs-name">a</span>></span> | 
[/e:loop]</span></code>
随机调用tag，其实这种可以改一改，随机调用所有表的信息，具体可以自行修改