[PDO]①③--debugDumpParams

$stmt->fetchColumn

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query($sql);
    echo $stmt->fetchColumn(0), "
";
    echo $stmt->fetchColumn(1), "
";
    echo $stmt->fetchColumn(2), "
";
} catch (PDOException $e) {
    echo $e->getMessage();
}
?>

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$stmt->debugDumpParams()

prepare($sql);
    $stmt->bindParam(1, $username, PDO::PARAM_STR);
    $stmt->bindParam(2, $password, PDO::PARAM_STR);
    $stmt->bindParam(3, $email, PDO::PARAM_STR);
    $username = 'testParam';
    $password = 'testParam';
    $email = '[email protected]';
    $stmt->execute();
    $stmt->debugDumpParams();

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

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prepare($sql);
    $stmt->bindParam(':username', $username, PDO::PARAM_STR);
    $stmt->bindParam(':password', $password, PDO::PARAM_STR);
    $username = 'testParam3';
    $password = 'testParam4';
    $email = '[email protected]';
    $stmt->execute();
    $stmt->debugDumpParams();
} catch (PDOException $e) {
    echo $e->getMessage();
}
?>

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