$url="http://api.sinmeng.net/api/caiji/caiji.php?url={$_GET[url]}&key=你的key";
$caiji=json_decode(file_get_contents($url));
$caiji_lead_image_url= $caiji->{'lead_image_url'};//图片
$caiji_word_count= $caiji->{'word_count'};//字数
$caiji_title= $caiji->{'title'};//标题
$caiji_content= $caiji->{'content'};//内容
$caiji_description = preg_replace("/<(\/?.*?)>/si","",$caiji_content);//过滤html标签
$caiji_description = mb_substr($caiji_description,0,80,'utf-8');//简介 
//以下内容是用在GBK编码网页，已经将UTF-8进行了转码。 
//$caiji_lead_image_url= mb_convert_encoding($caiji->{'lead_image_url'},'gbk','utf-8');//图片
//$caiji_word_count= mb_convert_encoding($caiji->{'word_count'},'gbk','utf-8');//字数
//$caiji_title= mb_convert_encoding($caiji->{'title'},'gbk','utf-8');//标题
//$caiji_content= mb_convert_encoding($caiji->{'content'},'gbk','utf-8');//内容
//$caiji_description = preg_replace("/<(\/?.*?)>/si","",$caiji_content);//过滤html标签
//$caiji_description = mb_substr($caiji_description,0,80,'gbk');//简介