MongoDB\BSON\fromPHP Returns the BSON representation of a PHP value &reftitle.description; stringMongoDB\BSON\fromPHP array|objectvalue Serializes a PHP array or object (e.g. document) to its BSON representation. The returned binary string will describe a BSON document. &reftitle.parameters; value (array|object) PHP value to be serialized. &reftitle.returnvalues; The serialized BSON document as a binary string. &reftitle.errors; Throws MongoDB\Driver\Exception\UnexpectedValueException if the PHP value cannot be converted to BSON. Possible reasons include, but are not limited to, encountering an unexpected MongoDB\BSON\Type instance or MongoDB\BSON\Serializable::bsonSerialize failing to return an array or stdClass. &reftitle.examples; 1]); echo bin2hex($bson), "\n"; ?> ]]> &example.outputs; &reftitle.seealso; MongoDB\BSON\toPHP MongoDB BSON