织梦发布文章自动图片alt为文章标题

alt为图片描述标签，方便搜索引擎识别图片信息。

在 include/arc.archives.class.php 找到

            //设置全局环境变量

$this->Fields['typename'] = $this->TypeLink->TypeInfos['typename'];

@SetSysEnv($this->Fields['typeid'],$this->Fields['typename'],$this->Fields['id'],$this->Fields['title'],'archives');

在下面增加

//替换图片Alt为文档关键字+标题
$this->Fields['body'] = str_ireplace(array('alt=""','alt=\'\''),'',$this->Fields['body']);
$this->Fields['body'] = preg_replace("@ [\s]{0,}alt[\s]{0,}=[\"'\s]{0,}[\s\S]{0,}[\"'\s] @isU"," ",$this->Fields['body']);
$this->Fields['body'] = str_ireplace("<img " ,"<img alt='".$this->Fields['title']."' ",$this->Fields['body']);
//end

//图集模板中的图片自动添加注释为标题
$this->Fields['imgurls'] = str_ireplace(array('alt=""','alt=\'\''),'',$this->Fields['imgurls']);
$this->Fields['imgurls'] = preg_replace("@ [\s]{0,}alt[\s]{0,}=[\"'\s]{0,}[\s\S]{0,}[\"'\s] @isU"," ",$this->Fields['imgurls']);
$this->Fields['imgurls'] = str_ireplace("<img " ,"<img alt=\"".$this->Fields['title']."\" ",$this->Fields['imgurls']);