DEDEcms文章中的图片自动添加ALT属性方法一

打开Include/ arc.archives.class.php

查找：

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

在上面代码后面添加：

//替换图片Alt和title为文档标题
$this->Fields['body'] = str_ireplace(array('altalt=""','alt='''),'',$this->Fields['body']);
$this->Fields['body'] = preg_replace("@ [s]{0,}alt[s]{0,}=["'s]{0,}[sS]{0,}["'s] @isU"," ",$this->Fields['body']);
$this->Fields['body'] = str_ireplace("<img " ,"<img alt="".$this->Fields['title']."" title="".$this->Fields['title']."" ",$this->Fields['body']);
$this->Fields['imgurls'] = str_ireplace(array('altalt=""','alt='''),'',$this->Fields['imgurls']);
$this->Fields['imgurls'] = preg_replace("@ [s]{0,}alt[s]{0,}=["'s]{0,}[sS]{0,}["'s] @isU"," ",$this->Fields['imgurls']);
$this->Fields['imgurls'] = str_ireplace("<img " ,"<img alt="".$this->Fields['title']."" ",$this->Fields['imgurls']);

上面是修改默认的模板标签：{dede:field.body/} ，如果是其它字段，可以修改$this->Fields[‘body’] 为其它的字段名。

{dede:field.body runphp=yes}
global $dsql,$id,$aid;
$myid = isset($id) ? $id : $aid;
$row = $dsql->GetOne("SELECT title FROM `dede_archives` WHERE id=$myid");
$title = $row['title'];
$str = @me;
$search = '/(<img.*?)alt=(["'])?.*?(?(2)|s)([^>]+>)/is';
$search1 = '/(<img.*?)title=(["'])?.*?(?(2)|s)([^>]+>)/is';
$content = preg_replace($search,'$1$3',$str);
$content = preg_replace($search1,'$1$3',$content);
@me = str_replace('<img', "<img alt='{$title}' title='{$title}'", $content);
{/dede:field.body}