笑脸代替

http://zhidao.baidu.com/link?url=mzP7F4VOKdP7vHcwsr2-llvFe2bEH9VyEDS_CQQn0QIoXvgL_b1eP1Mv-JE000BXtcWXg2Q0BmBAGuFYJpHMea

核心代码：

$faces = M('Expression')->select();
foreach($faces as $k => $v){
$replace[] = $v['emotion'];
$arr[$v['title']] = "<img src='/weixin/web/Tpl/default/Home/Static/images/bq/".$v['filename']."' />";
}

foreach($replay as $key => $v){
$replay[$key]['create_time'] = toDate($v['create_time']);
$replay[$key]['reply_content'] = str_replace($replace,array_values($arr),$v['reply_content']);
}