thinkphp事务处理

事务处理，例如：

public function test() { $m = M('recording'); $mm = M('course'); $mm ->startTrans(); $res_rec = $m->where("recid = 1")->delete(); $rec_cou = $mm->where("courseid = 1")->delete(); echo'<pre>'; var_dump("$res_rec"); var_dump("$rec_cou"); echo'</pre>'; if($res_rec && $rec_cou){ $mm ->commit(); dump('commit'); }else{ $mm->rollback(); dump('rollback'); } dump("over"); }