我稍微修改了一下,加了alt,修改了onerror,这样就符合xhtml
function discuz_uc_avatar($uid, $size = '', $returnsrc = FALSE) {
$size = in_array($size, array('big', 'middle', 'small')) ? $size : 'middle';
$uid = abs(intval($uid));
$uid = sprintf("%09d", $uid);
$dir1 = substr($uid, 0, 3);
$dir2 = substr($uid, 3, 2);
$dir3 = substr($uid, 5, 2);
return $returnsrc ? UC_API.'/data/avatar/'.$dir1.'/'.$dir2.'/'.$dir3.'/'.substr($uid, -2)."_avatar_$size.jpg" : '<img src="'.UC_API.'/data/avatar/'.$dir1.'/'.$dir2.'/'.$dir3.'/'.substr($uid, -2)."_avatar_$size.jpg".'" alt="javascript:this.onerror=null;this.src=\''.UC_API.'/images/noavatar_'.$size.'.gif\'" />';
}复制代码