PDO连接mysql和pgsql数据库

1 <?php
2 $dsn="mysql:host=localhsot;dbname=lamp87";
3 $user="root";
4 $passwd="123";
5 $m = new PDO($dsn,$user,$passwd);
6 $stmt = $m->query("select * from stu");
7 $rows = $stmt->fetchAll();
8 var_dump($rows);
9 ?>

1 <?php
2 $dsn="pgsql:host=localhost;port=5432;dbname=lamp87;user=postgres;password=123456";
3 $m = new PDO($dsn);
4 $stmt = $m->query("select * from stu");
5 $rows = $stmt->fetchAll();
6 var_dump($rows);
7 ?>