yii异常处理架构

使用方法：

use yiibaseErrorException;
try {
	exec("curl http://xxx",$out,$retno);
	if(0 !== $retno){
	throw new ErrorException(var_export($out,true),0,1,__FILE__,__LINE__);
} catch (ErrorException $e){
	$error = "{$date} - {$e->getMessage()} - FILE:{$e->getFile()} - LINE:{$e->getLine()}
";
}