keyId can be null

'https://github.com/mongodb/specifications/blob/master/source/client-side-encryption/client-side-encryption.md#create-encrypted-collection-helper'

Author: GromNaN

source/includes/qe-tutorials/php/queryable-encryption-helpers.php

@@ -190,14 +190,6 @@ function createEncryptedCollection(
 ): void
 {
     try {
-        // This should be done in the createEncryptedCollection method
-        foreach ($encryptedFieldsMap['encryptedFields']['fields'] as &$field) {
-            if (!isset($field['keyId'])) {
-                $keyId = $clientEncryption->createDataKey($kmsProviderName, $customerMasterKeyCredentials);
-                $field['keyId'] = $keyId;
-            }
-        }
-
         // start-create-encrypted-collection
         $client->getDatabase($encryptedDatabase)->createEncryptedCollection(
             $encryptedCollectionName,

source/includes/qe-tutorials/php/queryable-encryption-tutorial.php

@@ -52,10 +52,12 @@
                 'path' => 'patientRecord.ssn',
                 'bsonType' => 'string',
                 'queries' => ['queryType' => 'equality'],
+                'keyId' => null,
             ],
             [
                 'path' => 'patientRecord.billing',
                 'bsonType' => 'object',
+                'keyId' => null,
             ],
         ],
     ],