Using NotIn & Regex in MongoDB with PHP - php

Question

I have a table with some user email address like:
johndoe#somemail.com
test#test_mail.com
test2#test_mail.com
admin#company_mail.com
janedoe#someothermail.com
sales#company_mail.com
mruser#validmail.com
I want to get the user list with emails not ending with #test_mail.com OR #company_mail.com.
I succeeded this with following mongo query:
db.users.find({
userEmail: {
$nin: [/#test_mail.com$/,/#company_mail.com$/]
}
})
I trid to run the same query in PHP with following code but couldn't make it work:
$criteria = array(
"userEmail" => array(
'$nin' => array(
'$regex' => new \MongoRegex("/#test_mail.com|#company_mail.com/i")
)
)
);
$cursor = $collection->find($criteria);
Any suggestions?

Answer 1

The correct way to apply this is with a singular MongoRegex object and the $not operator to reverse the condition:
$cursor = $users->find(array(
"userEmail" => array(
'$not' => new MongoRegex('/\#test_mail\.com$|\#company_mail\.com$/i')
)
));
foreach ( $cursor as $doc ) {
var_dump( $doc );
}
The same applies to $nin where you can actually specify a "regex" argument, but it must be an regular expression "object" type and not the operator form:
$cursor = $user->find(array(
"userEmail" => array(
'$nin' => array(new MongoRegex('/\#test_mail\.com$|\#company_mail\.com$/i'))
)
));
foreach ( $cursor as $doc ) {
var_dump( $doc );
}
But not really necessary as you are not providing an "array" of different values, the regular expression can represent the "or" condition itself.

Answer 2

You shouldn't use $nin in this case, I would try something like this:
$criteria = array(
"userEmail" => array(
'$not' => array(
'$or' => array(
'$regex' => new \MongoRegex("/#test_mail\.com$/i"),
'$regex' => new \MongoRegex("/#company_mail\.com$/i"),
),
),
)
);
UPD:
you can try this:
$criteria = array(
'$not' => array(
'$or' => array(
"userEmail" => array('$regex' => new \MongoRegex("/#test_mail\.com$/i")),
"userEmail" => array('$regex' => new \MongoRegex("/#company_mail\.com$/i")),
),
),
)
);