Question

当我尝试在SQL（PHP / PDO）中运行此函数的提取部分时，我收到以下错误：

向数据库提交查询时出错：SQLSTATE [HY093]：参数号无效:: membernobooking2

该函数传递这些变量：

function makeBooking($memberNo2,$car,$bayID,$bookingDate,$bookingHour,$duration) {}

代码的具体部分是：

$stmt4 = $db->prepare("INSERT INTO booking (bookingid, bayid, bookingdate, bookinghour, duration, memberno, car) 
                VAlUES (DEFAULT, :bayIDBooking, :bookingDateBooking, :bookingHourBooking, :durationBooking, 
                    (SELECT memberNo FROM PeerPark.Member m WHERE (m.email = ':membernobooking') OR (m.nickname = ':membernobooking')), :carBooking) 
                RETURNING bookingid  ");
                    $stmt4->bindValue(':bayIDBooking',$bayID,PDO::PARAM_INT);
                    $stmt4->bindValue(':bookingDateBooking',$bookingDate,PDO::PARAM_STR);
                    $stmt4->bindValue(':bookingHourBooking',$bookingHour,PDO::PARAM_INT);
                    $stmt4->bindValue(':durationBooking',$duration,PDO::PARAM_INT);
                    $stmt4->bindValue(':membernobooking',$memberNo2,PDO::PARAM_STR):
                    $stmt4->bindValue(':carBooking',$car,PDO::PARAM_STR);
                    $stmt4->execute();

我看到有一个非常相似的问题，但我不相信我会得到任何重复。任何人都能解释一下吗？

Answer 1

Remove the quotes ' from around your binds in your values.

(m.email = ':membernobooking') OR (m.nickname = ':membernobooking')
           ^                ^                   ^                ^

to

(m.email = :membernobooking) OR (m.nickname = :membernobooking)

Placeholders should not contain quotes.

Reference(s):

http://php.net/pdo.prepared-statements

SQLSTATE [HY093]：参数号无效 - 无法找到重复项

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