DeDecms教程

function M_mkdirs($dir)  
{  
if(!is_dir($dir))  
{  
if(!M_mkdirs(dirname($dir))){  
return false;  
}  
if(!mkdir($dir,0777)){  
return false;  
}  
}  
return true;  
}  
if (!function_exists('qmtx3Thumb')) 
{ 
function qmtx3Thumb($aid, $width, $height, $n=0, $bg = false) 
{
global $cfg_basehost,$cfg_multi_site,$dsql;
$query= "SELECT body FROM `dede_addonarticle` where aid='$aid'";
$row = $dsql->GetOne($query); 
$preg = "/<img.*?src=['"](.+?)['"].*?>/i";
preg_match_all($preg, $row['body'], $match);
$imgurl = $match[1][0];
if($n==='L'){
$imgurl = end($match[1]);
}
if(!$imgurl) return '/images/defaultpic.gif';
$thumb = str_replace($cfg_basehost,'',$imgurl);
if(strpos($thumb, 'http://') === 0){
return '/images/defaultpic2.gif';
}
list($thumbname,$extname) = explode('.',$thumb); 
$newImgdir = DEDEROOT.str_replace('uploads', 'uploads/diylitpic', str_replace($cfg_basehost, '', dirname($imgurl)));
$newthumb = str_replace('uploads', 'uploads/diylitpic', $thumbname).'_'.$width.'_'.$height.'.'.$extname;
$mdsure = M_mkdirs($newImgdir);
if($mdsure){
if(!$thumbname || !$extname || !file_exists(DEDEROOT.$thumb)) return $imgurl; 
if(!file_exists(DEDEROOT.$newthumb)){ 
include_once DEDEINC.'/image.func.php'; 
if($bg==true) 
{ 
ImageResizeNew(DEDEROOT.$thumb, $width, $height, DEDEROOT.$newthumb); 
} 
else 
{ 
ImageResize(DEDEROOT.$thumb, $width, $height, DEDEROOT.$newthumb); 
} 
} 
return $cfg_multi_site=='Y'?$cfg_basehost.$newthumb:$newthumb; 
}else{
return '创建目录失败';
}
} 
}

{dede:arclist}
<img width="200" height="200" src="[field:id function='qmtx3Thumb(@me, 200, 200)'/]" />
{/dede:arclist}