update : 2015.11.03
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Provides an array or document to serialize as BSON

MongoDB\BSON\Serializable::bsonSerialize

(mongodb >=1.0.0)

MongoDB\BSON\Serializable::bsonSerializeProvides an array or document to serialize as BSON

설명

abstract public array|object MongoDB\BSON\Serializable::bsonSerialize ( void )

Called during serialization of the object to BSON. The method must return an array or stdClass.

Root documents (e.g. a MongoDB\BSON\Serializable passed to MongoDB\BSON\fromPHP()) will always be serialized as a BSON document. For field values, associative arrays and stdClass instances will be serialized as a BSON document and sequential arrays (i.e. sequential, numeric indexes starting at 0) will be serialized as a BSON array.

인수

이 함수는 인수가 없습니다.

반환값

An array or stdClass to be serialized as a BSON array or document.

예제

Example #1 MongoDB\BSON\Serializable::bsonSerialize() returning an associative array for root document

<?php

class MyDocument implements MongoDB\BSON\Serializable
{
    function 
bsonSerialize()
    {
        return [
'foo' => 'bar'];
    }
}

$bson MongoDB\BSON\fromPHP(new MyDocument);
echo 
MongoDB\BSON\toJSON($bson), "\n";

?>

위 예제의 출력:

{ "foo" : "bar" }

Example #2 MongoDB\BSON\Serializable::bsonSerialize() returning a sequential array for root document

<?php

class MyArray implements MongoDB\BSON\Serializable
{
    function 
bsonSerialize()
    {
        return [
123];
    }
}

$bson MongoDB\BSON\fromPHP(new MyArray);
echo 
MongoDB\BSON\toJSON($bson), "\n";

?>

위 예제의 출력:

{ "0" : 1, "1" : 2, "2" : 3 }

Example #3 MongoDB\BSON\Serializable::bsonSerialize() returning an associative array for document field

<?php

class MyDocument implements MongoDB\BSON\Serializable
{
    function 
bsonSerialize()
    {
        return [
'foo' => 'bar'];
    }
}

$value = ['document' => new MyDocument];
$bson MongoDB\BSON\fromPHP($value);
echo 
MongoDB\BSON\toJSON($bson), "\n";

?>

위 예제의 출력:

{ "document" : { "foo" : "bar" } }

Example #4 MongoDB\BSON\Serializable::bsonSerialize() returning a sequential array for document field

<?php

class MyArray implements MongoDB\BSON\Serializable
{
    function 
bsonSerialize()
    {
        return [
123];
    }
}

$value = ['array' => new MyArray];
$bson MongoDB\BSON\fromPHP($value);
echo 
MongoDB\BSON\toJSON($bson), "\n";

?>

위 예제의 출력:

{ "array" : [ 1, 2, 3 ] }

참고