SQLSTATE [HY093]：參數號無效：參數未定義'

Question

我讀過很多討論此問題的線程，但我找不到我的代碼有什么問題，我有一個數組：

    $insert_arr["$key"]['customer']["$cust->Company"]['cpq_id'] = "$cust->CustomerId";
    $insert_arr["$key"]['customer']["$cust->Company"]['shop_cart_id'] = "$cust->ShopCartId";
    $insert_arr["$key"]['customer']["$cust->Company"]['user_id'] = "$cust->UserId";
    $insert_arr["$key"]['customer']["$cust->Company"]['company'] = "$cust->Company";
    $insert_arr["$key"]['customer']["$cust->Company"]['crm_id'] = empty("$cust->CRMAccountId") ? 0 : "$cust->CRMAccountId";

稍后，我有：

$q_customer = 'insert into customers
                                 (
                                   cpq_id, 
                                   shopping_cart_id,
                                   user_id,
                                   company_name,
                                   crm_id
                                  )
                                  values (?, ?, ?, ?, ?)';
$sc = $db2->prepare($q_customer);

后來：

foreach ($insert_arr as $id => $arr) {
    foreach($arr['customer'] as $c) {
            $sc->execute($c);
    }
}

而且我總是得到標題中引用的錯誤。 我以前從未使用過PDO，也無法弄清楚出了什么問題。 請幫助！

Answer 1

您必須先綁定參數，然后才能調用execute方法。 您的數組也是第3維類型，因此您將需要添加一個foreach。

像這樣 ：

foreach ($insert_arr as $id => $arr) {
    foreach($arr['customer'] as $c) {
        $params = array();
        foreach($c as $param => $value) {
            $params[] = $value;
        }
        $sc->execute($params);
    }
}
$sc->execute();

Answer 2

如果要使用關聯數組作為execute()的參數，則必須使用命名的占位符，不是? 。 占位符名稱必須與數組索引匹配。

$q_customer = 'insert into customers (cpq_id, shopping_cart_id, user_id, company_name, crm_id) values (:cpq_id, :shop_cart_id, :user_id, :company, :crm_id)';
$sc = $db2->prepare($q_customer);
foreach ($insert_arr as $id => $arr) {
    foreach($arr['customer'] as $c) {
            $sc->execute($c);
    }
}