Question

我有一个类数据库，它有多个方法，有些执行预处理语句，用于在我的表中创建新行。目前，一切正常，但如果出现问题，是否有办法停止进一步的查询并恢复之前的查询。

以下是我的表单当前处理方式的一个小例子：

if(isset($_POST["someSubmitName"]) : 
//post variables 
....
// Start Queries 
$db->address_table_insert_statement($firstName, $lastName, $companyName, $streetAddress, $streetAddress2, $streetAddress3, $city, $state, $zip, $country, $phone, $fax, $email, $date, $date);
$addressId = mysqli_insert_id($db->connection);
$db->address_table_insert_statement($firstName, $lastName, $companyName, $billingStreetAddress, $billingStreetAddress2, $billingStreetAddress3, $billingCity, $billingState, $billingZipCode, $billingCountry, $billingPhone, $billingFax, $billingEmail, $date, $date);
$billingAdressId = mysqli_insert_id($db->connection);
$db->account_table_insert_statement($active, $addressId, $billingAddressId, $dateCreated, $dateModified);
endif;

同样，如果其中任何一个失败，我想恢复所有查询并退出此表单处理。谢谢！

Answer 1

通过在mysqli connect
之前添加此行，将mysqli置于异常模式
```
mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
```
在交易
将您的交易包裹在try..catch语句中并在其中添加回滚调用。

所以代码就像

mysqli_report(MYSQLI_REPORT_ERROR | MYSQLI_REPORT_STRICT);
$db = new mysqli(...);
...
try {
    $db->autocommit(FALSE);

    $db->address_table_insert_statement($firstName, $lastName, $companyName, $streetAddress, $streetAddress2, $streetAddress3, $city, $state, $zip, $country, $phone, $fax, $email, $date, $date);
    $addressId = mysqli_insert_id($db->connection);
    $db->address_table_insert_statement($firstName, $lastName, $companyName, $billingStreetAddress, $billingStreetAddress2, $billingStreetAddress3, $billingCity, $billingState, $billingZipCode, $billingCountry, $billingPhone, $billingFax, $billingEmail, $date, $date);
    $billingAdressId = mysqli_insert_id($db->connection);
    $db->account_table_insert_statement($active, $addressId, $billingAddressId, $dateCreated, $dateModified);

    $db->commit();
} catch (\Exception $e) {
    $db->rollback();
    throw $e;
}

如果多个预准备语句中的一个失败，请停止并恢复

1 个答案: