Description:
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From manual page: http://php.net/manual/en/mongocollection.update.php
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MongoCollection::update returns an "nModified" property in the status array, however, this is not documented.

This property is not returned from MongoCollection::insert and so referring the user to the status array documentation in MongoCollection::insert results in incomplete documentation.

Expected result:
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The documentation of the return value for MongoCollection::update includes the "nModified" property.

Actual result:
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The documentation of the return value for MongoCollection::update does not include the "nModified" property.