MySQL数据库监控软件lepus使用问题以及解决办法

[x@coe2coe lepus]$ cat mysql.php
<?php
 try{
 #$dsn="mysql:host=127.0.0.1;dbname=lepus;";
 $dsn="mysql:host=11.1.1.11;dbname=lepus;";
 $user="coe2coe";
 $pwd="XXXXXXXXXX";
 $sql="select now() as a";
 $dbh=new PDO($dsn,$user,$pwd);
 $stmt=$dbh->prepare($sql);
 $stmt->execute();
 $row=$stmt->fetch(PDO::FETCH_ASSOC);
 echo "result:".$row['a'];
 }
 catch(PDOException $e) {
 echo "FAILED:".$e->getMessage();
 }
?>