<?php
$host = "127.0.0.1";
$port = 3306;
$username = ‘root‘;
$password = ‘xxxx‘;
$dsn = "mysql:host={$host};port={$port};";
$dbconn = array(
‘dns‘=>$dsn,
‘dbuser‘=>$username,
‘dbpwd‘=>$password
);
$iokcount = 0;
try{
$db = new PDO($dbconn[‘dns‘],$dbconn[‘dbuser‘],$dbconn[‘dbpwd‘]);
$sql = "show databases";
$st = $db->query($sql);
$rs = $st->fetchAll();
//显示所有记录
foreach($rs as $rows)
{
print_r($rows);
}
$db = null;
}catch(PDOException $e)
{
echo $e->getMessage();
}
?>今天有人和我说pdo没办法show databases，实测可以
原文：http://blog.csdn.net/zzz_781111/article/details/41805419
