diff --git a/mod/lti/classes/local/ltiservice/service_base.php b/mod/lti/classes/local/ltiservice/service_base.php
index e37990d74f3..79f38fc8e40 100644
--- a/mod/lti/classes/local/ltiservice/service_base.php
+++ b/mod/lti/classes/local/ltiservice/service_base.php
@@ -343,7 +343,7 @@ abstract class service_base {
      * @return array Key/value pairs of params to claim mapping.
      */
     public function get_jwt_claim_mappings(): array {
-        return array();
+        return [];
     }
 
     /**
diff --git a/mod/lti/locallib.php b/mod/lti/locallib.php
index 11b1837dd5a..b954a605a45 100644
--- a/mod/lti/locallib.php
+++ b/mod/lti/locallib.php
@@ -130,7 +130,7 @@ function lti_get_jwt_claim_mapping() {
     foreach ($services as $service) {
         $mapping = array_merge($mapping, $service->get_jwt_claim_mappings());
     }
-    $mapping = array_merge($mapping, array(
+    $mapping = array_merge($mapping, [
         'accept_copy_advice' => [
             'suffix' => 'dl',
             'group' => 'deep_linking_settings',
@@ -442,7 +442,7 @@ function lti_get_jwt_claim_mapping() {
             'claim' => 'url',
             'isarray' => false
         ]
-    ));
+    ]);
     return $mapping;
 }
 
diff --git a/mod/lti/service/basicoutcomes/classes/local/service/basicoutcomes.php b/mod/lti/service/basicoutcomes/classes/local/service/basicoutcomes.php
index d25d2e8f813..1c7032f27d1 100644
--- a/mod/lti/service/basicoutcomes/classes/local/service/basicoutcomes.php
+++ b/mod/lti/service/basicoutcomes/classes/local/service/basicoutcomes.php
@@ -97,7 +97,8 @@ class basicoutcomes extends \mod_lti\local\ltiservice\service_base {
      * @return array Key/value pairs of params to claim mapping.
      */
     public function get_jwt_claim_mappings(): array {
-        return array('lis_outcome_service_url' => [
+        return [
+            'lis_outcome_service_url' => [
                 'suffix' => 'bo',
                 'group' => 'basicoutcome',
                 'claim' => 'lis_outcome_service_url',
@@ -108,7 +109,8 @@ class basicoutcomes extends \mod_lti\local\ltiservice\service_base {
                 'group' => 'basicoutcome',
                 'claim' => 'lis_result_sourcedid',
                 'isarray' => false
-            ]);
+            ]
+        ];
     }
 
 }
diff --git a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
index 98b98f4f701..a429a338558 100644
--- a/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
+++ b/mod/lti/service/gradebookservices/classes/local/service/gradebookservices.php
@@ -150,48 +150,50 @@ class gradebookservices extends service_base {
      * @return array Key/value pairs of params to claim mapping.
      */
     public function get_jwt_claim_mappings(): array {
-        return array('custom_gradebookservices_scope' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'scope',
-            'isarray' => true
-        ],
-        'custom_lineitems_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'lineitems',
-            'isarray' => false
-        ],
-        'custom_lineitem_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'lineitem',
-            'isarray' => false
-        ],
-        'custom_results_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'results',
-            'isarray' => false
-        ],
-        'custom_result_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'result',
-            'isarray' => false
-        ],
-        'custom_scores_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'scores',
-            'isarray' => false
-        ],
-        'custom_score_url' => [
-            'suffix' => 'ags',
-            'group' => 'endpoint',
-            'claim' => 'score',
-            'isarray' => false
-        ]);
+        return [
+            'custom_gradebookservices_scope' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'scope',
+                'isarray' => true
+            ],
+            'custom_lineitems_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'lineitems',
+                'isarray' => false
+            ],
+            'custom_lineitem_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'lineitem',
+                'isarray' => false
+            ],
+            'custom_results_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'results',
+                'isarray' => false
+            ],
+            'custom_result_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'result',
+                'isarray' => false
+            ],
+            'custom_scores_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'scores',
+                'isarray' => false
+            ],
+            'custom_score_url' => [
+                'suffix' => 'ags',
+                'group' => 'endpoint',
+                'claim' => 'score',
+                'isarray' => false
+            ]
+        ];
     }
 
     /**
diff --git a/mod/lti/service/memberships/classes/local/service/memberships.php b/mod/lti/service/memberships/classes/local/service/memberships.php
index d9c747064c5..6c9fb0b8d06 100644
--- a/mod/lti/service/memberships/classes/local/service/memberships.php
+++ b/mod/lti/service/memberships/classes/local/service/memberships.php
@@ -561,17 +561,19 @@ class memberships extends \mod_lti\local\ltiservice\service_base {
      * @return array Key/value pairs of params to claim mapping.
      */
     public function get_jwt_claim_mappings(): array {
-        return array('custom_context_memberships_v2_url' => [
-            'suffix' => 'nrps',
-            'group' => 'namesroleservice',
-            'claim' => 'context_memberships_url',
-            'isarray' => false
+        return [
+            'custom_context_memberships_v2_url' => [
+                'suffix' => 'nrps',
+                'group' => 'namesroleservice',
+                'claim' => 'context_memberships_url',
+                'isarray' => false
             ],
             'custom_context_memberships_versions' => [
                 'suffix' => 'nrps',
                 'group' => 'namesroleservice',
                 'claim' => 'service_versions',
                 'isarray' => true
-            ]);
+            ]
+        ];
     }
 }