如何从 Ramsey\Uuid\Codec\StringCodec 中提取 uuid？

Question

到目前为止，从以下几行

$records = $this->entityManager->getRepository(Translation::class)->findBy([], ['id' => 'DESC'], 1, 0);

$uuid = $records[0]->getId();

我可以得到以下几行。

Ramsey\Uuid\Uuid {#131

  #codec: Ramsey\Uuid\Codec\StringCodec {#86

    -builder: Ramsey\Uuid\Builder\DefaultUuidBuilder {#383

      -converter: Ramsey\Uuid\Converter\Number\DegradedNumberConverter {#390}

    }

  }

  #fields: array:6 [

    "time_low" => "1483fc71"

    "time_mid" => "66e9"

    "time_hi_and_version" => "4e21"

    "clock_seq_hi_and_reserved" => "b9"

    "clock_seq_low" => "50"

    "node" => "c6e9e6405428"

  ]

  #converter: Ramsey\Uuid\Converter\Number\DegradedNumberConverter {#390}

  uuid: "1483fc71-66e9"

}

我怎样才能提取uuid？

Answer 1

您可以通过Ramsey\Uuid\Uuid多种方式将 UUID 提取为字符串。基本方法是Ramsey\Uuid\Uuid::toString()，所以对于您的代码示例如下：$uuid = $records[0]->getId()->toString();对于命名约定，存在一些全部调用的包装方法Ramsey\Uuid\Uuid::toString()：Ramsey\Uuid\Uuid::serialize()Ramsey\Uuid\Uuid::jsonSerialize()但是当然你可以将整个对象转换为字符串。

Answer 2

该类实现了 PHP 的__toString方法，因此您可以将对象转换为字符串：$uuid = (string) $records[0]->getId();