[PDO]⑥--查看错误信息

$pdo->errorCode()

$pdo->errorInfo()

exec($sql);
    if ($res == false) {
        //$pdo->errorCode();SQLSTATE的值
        echo $pdo->errorCode() . "
";//42S02
        //$pdo->errorInfo() 返回的错误信息的数组 数组中包含三个单元
        //SQLSTATE,CODE,INFO
        var_dump($pdo->errorInfo());
        /**
         * array
         *0 => string '42S02' (length=5)
         *1 => int 1146
         *2 => string 'Table 'test.user1' doesn't exist' (length=32)
         */
    }

} catch (PDOException $e) {
    echo $e->getMessage();
}

?>