Cannot append reference to bson

[Martin1994]

My environment:

• Win 10
• IIS 10
• PHP 7.0.0 NTS x64 / PHP 5.5.20 TS x64 with FastCGI
• mongodb 3.2.0
• mongodb (php driver) 1.1.1

I failed to write associative array with reference value to db.

The following codes should reproduce this issue:

$some_field = array();

$data = array(
    'some_field' => &$some_field
);

$bulk = new BulkWrite();
$bulk->insert($data);

The exception message is:
PHP Fatal error: Uncaught MongoDB\Driver\Exception\UnexpectedValueException: Got unsupported type 10 'unknown'
Type 10 is IS_REFERENCE defined in zend_types.h

It works after removing the & operator in line 3.

[jmikola]

Tracking in PHPC-528. Thanks for the report.