# MongoDB\BSON\fromJSON

(mongodb >=1.0.0)

MongoDB\BSON\fromJSON — Returns the BSON representation of a JSON value

### Description

MongoDB\BSON\fromJSON ( string `$json` ) : string

Converts an » extended JSON string to its BSON representation.

### Parameters

`json` (string)

  JSON value to be converted.

### Return Values

The serialized BSON document as a binary string.

### Errors/Exceptions

- Throws MongoDB\Driver\Exception\UnexpectedValueException if the JSON value cannot be converted to BSON (e.g. due to a syntax error).

### Examples

Example #1 MongoDB\BSON\fromJSON() example

`<?php
$json = '{ "_id": { "$oid": "563143b280d2387c91807965" } }';
$bson = MongoDB\BSON\fromJSON($json);
$value = MongoDB\BSON\toPHP($bson);
var_dump($value);
?>`

The above example will output:

    object(stdClass)#2 (1) {
      ["_id"]=>
      object(MongoDB\BSON\ObjectId)#1 (1) {
        ["oid"]=>
        string(24) "563143b280d2387c91807965"
      }
    }

### See Also

- MongoDB\BSON\toJSON() - Returns the Legacy Extended JSON representation of a BSON value
- » MongoDB Extended JSON
- » MongoDB BSON