(mongodb >=1.0.0)
MongoDB\BSON\fromPHP — Returns the BSON representation of a PHP value
$value
)Serializes a PHP array or object (e.g. document) to its » BSON representation. The returned binary string will describe a BSON document.
value (array|object)PHP value to be serialized.
The serialized BSON document as a binary string.
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.
Example #1 MongoDB\BSON\fromPHP() example
<?php
$bson = MongoDB\BSON\fromPHP(['foo' => 1]);
echo bin2hex($bson), "\n";
?>
以上例程会输出：
0e00000010666f6f000100000000cat