pdo的使用

<?php
/**
pdo的使用

**/
try {
    $dbh = new PDO('mysql:host=localhost;dbname=wc','root','root');
    foreach($dbh->query('SELECT * from  ss') as $row) {
        echo '<br/>';
        print_r($row);
        $arr[]=$row;
    }
    var_dump($arr);
    $dbh = null;
} catch (PDOException $e) {
    print "Error!: " . $e->getMessage() . "<br/>";
    die();
}
?>