MongoDB\BSON\toJSON

(mongodb >=1.0.0)

MongoDB\BSON\toJSON — Returns the Legacy Extended JSON representation of a BSON value

警告

This function has been DEPRECATED as of extension version 1.20.0 and will be removed in 2.0. Applications should use MongoDB\BSON\Document::toCanonicalExtendedJSON() or MongoDB\BSON\Document::toRelaxedExtendedJSON() instead.

说明

MongoDB\BSON\toJSON(string $bson): string

Converts a BSON string to its » Legacy Extended JSON representation.

注意: There exist several JSON formats for representing BSON. This function implements the "strict mode" defined in » MongoDB Extended JSON, which has been superseded by the canonical and relaxed formats defined in the » Extended JSON Specification and implemented by MongoDB\BSON\toCanonicalExtendedJSON() and MongoDB\BSON\toRelaxedExtendedJSON(), respectively.

警告

» JSON does not support NAN and INF and MongoDB's Legacy Extended JSON format does not define an alternative representation for these values (» libbson will output nan and inf literals, which may not be parsed as valid JSON). If you are working with BSON that may contain non-finite numbers, please use MongoDB\BSON\toCanonicalExtendedJSON() or MongoDB\BSON\toRelaxedExtendedJSON().

参数

bson (string): BSON value to be converted.

返回值

The converted JSON value.

错误／异常

Throws MongoDB\Driver\Exception\UnexpectedValueException if the input did not contain exactly one BSON document. Possible reasons include, but are not limited to, invalid BSON, extra data (after reading one BSON document), or an unexpected » libbson error.

示例

示例 #1 MongoDB\BSON\toJSON() example

<?php

$documents = [
    [ 'null' => null ],
    [ 'boolean' => true ],
    [ 'string' => 'foo' ],
    [ 'int32' => 123 ],
    [ 'int64' => 4294967295 ],
    [ 'double' => 1.0, ],
    [ 'nan' => NAN ],
    [ 'pos_inf' => INF ],
    [ 'neg_inf' => -INF ],
    [ 'array' => [ 'foo', 'bar' ]],
    [ 'document' => [ 'foo' => 'bar' ]],
    [ 'oid' => new MongoDB\BSON\ObjectId('56315a7c6118fd1b920270b1') ],
    [ 'dec128' => new MongoDB\BSON\Decimal128('1234.5678') ],
    [ 'binary' => new MongoDB\BSON\Binary('foo', MongoDB\BSON\Binary::TYPE_GENERIC) ],
    [ 'date' => new MongoDB\BSON\UTCDateTime(1445990400000) ],
    [ 'timestamp' => new MongoDB\BSON\Timestamp(1234, 5678) ],
    [ 'regex' => new MongoDB\BSON\Regex('pattern', 'i') ],
    [ 'code' => new MongoDB\BSON\Javascript('function() { return 1; }') ],
    [ 'code_ws' => new MongoDB\BSON\Javascript('function() { return a; }', ['a' => 1]) ],
    [ 'minkey' => new MongoDB\BSON\MinKey ],
    [ 'maxkey' => new MongoDB\BSON\MaxKey ],
];

foreach ($documents as $document) {
$bson = MongoDB\BSON\fromPHP($document);
    echo MongoDB\BSON\toJSON($bson), "\n";
}

?>

以上示例会输出：

{ "null" : null }
{ "boolean" : true }
{ "string" : "foo" }
{ "int32" : 123 }
{ "int64" : 4294967295 }
{ "double" : 1.0 }
{ "nan" : nan }
{ "pos_inf" : inf }
{ "neg_inf" : -inf }
{ "array" : [ "foo", "bar" ] }
{ "document" : { "foo" : "bar" } }
{ "oid" : { "$oid" : "56315a7c6118fd1b920270b1" } }
{ "dec128" : { "$numberDecimal" : "1234.5678" } }
{ "binary" : { "$binary" : "Zm9v", "$type" : "00" } }
{ "date" : { "$date" : 1445990400000 } }
{ "timestamp" : { "$timestamp" : { "t" : 5678, "i" : 1234 } } }
{ "regex" : { "$regex" : "pattern", "$options" : "i" } }
{ "code" : { "$code" : "function() { return 1; }" } }
{ "code_ws" : { "$code" : "function() { return a; }", "$scope" : { "a" : 1 } } }
{ "minkey" : { "$minKey" : 1 } }
{ "maxkey" : { "$maxKey" : 1 } }

参见

MongoDB\BSON\fromJSON() - Returns the BSON representation of a JSON value
MongoDB\BSON\toCanonicalExtendedJSON() - Returns the Canonical Extended JSON representation of a BSON value
MongoDB\BSON\toRelaxedExtendedJSON() - Returns the Relaxed Extended JSON representation of a BSON value
» MongoDB Extended JSON
» MongoDB BSON

发现了问题？

了解如何改进此页面 • 提交拉取请求 • 报告一个错误

＋添加备注

用户贡献的备注

此页面尚无用户贡献的备注。

备份地址：http://www.lvesu.com/blog/php/function.mongodb.bson-tojson.php