Reported originally at PHPLIB-176 by shadizar:

Hi. I cannot compare two regex objects (==) because the return value is always true, even when the patterns or flags are different. I could do a === comparison but that will always return false even when the patterns are the same.

I'm running a query optimizer that looks for duplicate filters, nested $or's, etc. With the old driver I did not have this issue because comparing two MongoRegex objects would return the right result.

Here's an example of my code:

<?php
use \MongoDB\BSON\Regex;
var_dump($a == $b); // returns true, should be false
var_dump($a === $b); // returns false
var_dump($a > $b); // returns false
var_dump($a < $b); // returns false, should be true

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The HHVM driver handles this correctly already.