emlog的链接用过的都知道，链接会出现重复问题！
<!--优化SEO链接-->
<?php if(isset($sortName)): ?>
<link rel="canonical" href="<?php echo Url::sort($sortid);?>" />
<?php elseif(isset($logid)):
if(parse_url('http://'.$_SERVER['HTTP_HOST'].$_SERVER['REQUEST_URI'])['path'] != parse_url(Url::log($logid))['path']) header('Location:'.Url::log($logid));?>
<link rel="canonical" href="<?php echo Url::log($logid);?>" />
<?php endif;?>
<!--优化SEO链接-->
