Get generated ids

# Result::getGeneratedIds

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Result::getGeneratedIds — Get generated ids

### 说明

public function mysql_xdevapi\Result::getGeneratedIds(): array

Fetch the generated _id values from the last operation. The unique _id field is generated by the MySQL server.

### 参数

此函数没有参数。

### 返回值

An array of generated _id's from the last operation, or an empty array if there are none.

### 示例

示例 #1 mysql_xdevapi\Result::getGeneratedIds() example

    <?php
    $session = mysql_xdevapi\getSession("mysqlx://user:password@localhost");
    $session->sql("DROP DATABASE IF EXISTS addressbook")->execute();
    $session->sql("CREATE DATABASE addressbook")->execute();

    $schema = $session->getSchema("addressbook");
    $create = $schema->createCollection("people");

    $collection = $schema->getCollection("people");

    $result = $collection->add(
      '{"name": "Bernie",
        "jobs": [{"title":"Cat Herder","Salary":42000}, {"title":"Father","Salary":0}],
        "hobbies": ["Sports","Making cupcakes"]}',
      '{"name": "Jane",
        "jobs": [{"title":"Scientist","Salary":18000}, {"title":"Mother","Salary":0}],
        "hobbies": ["Walking","Making pies"]}')->execute();

    $ids = $result->getGeneratedIds();
    var_dump($ids);
    ?>

以上示例的输出类似于：

    array(2) {
      [0]=>
      string(28) "00005b6b53610000000000000064"
      [1]=>
      string(28) "00005b6b53610000000000000065"
    }

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