MongoDB\BSON\toJSON
(mongodb >=1.0.0)
MongoDB\BSON\toJSON — Returns the Legacy Extended JSON representation of a BSON value
Descrierea
$bson
) : stringConverts a BSON string to its » Legacy Extended JSON representation.
Notă: 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 This function implements the "strict mode" defined in » MongoDB Extended JSON, which has been superseded by the canonical and relaxed formats defined in the » Extended JSON Specification and implemented by MongoDB\BSON\toCanonicalExtendedJSON() and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.
» 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().
Parametri
-
bson(string) -
BSON value to be converted.
Valorile întoarse
The converted JSON value.
Erori/Excepții
- Emite MongoDB\Driver\Exception\UnexpectedValueException dacă la intrare nu se conține exact un document BSON. Motive posibile pentru aceasta sunt, dar nu se limitează la, BSON nevalid, date în plus (după citirea unui document BSON), sau o eroare neașteptată » libbson.
Exemple
Example #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($bson), "\n";
}
?>
Exemplul de mai sus va afișa:
{ "null" : null }
{ "boolean" : true }
{ "string" : "foo" }
{ "int32" : 123 }
{ "int64" : 4294967295 }
{ "double" : 1.0 }
{ "nan" : nan }
{ "pos_inf" : inf }
{ "neg_inf" : -inf }
{ "array" : [ "foo", "bar" ] }
{ "document" : { "foo" : "bar" } }
{ "oid" : { "$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 } }
A se vedea și
- 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
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