Prevent undefined variable warnings

CRM/CallNextDashlet/Page/CallNextDashlet.php

@@ -159,7 +159,6 @@ class CRM_CallNextDashlet_Page_CallNextDashlet extends CRM_Core_Page {
       // Do something if API call fails.
       error_log(print_r([
         'method' => __METHOD__,
-        'activities_me' => $activities_me,
         'message' => $e->getMessage(),
       ], TRUE));
 
@@ -187,7 +186,6 @@ class CRM_CallNextDashlet_Page_CallNextDashlet extends CRM_Core_Page {
       // Do something if API call fails.
       error_log(print_r([
         'method' => __METHOD__,
-        'activities_none' => $activities_none,
         'message' => $e->getMessage(),
       ], TRUE));
 
@@ -198,15 +196,19 @@ class CRM_CallNextDashlet_Page_CallNextDashlet extends CRM_Core_Page {
 
     // Merge the arrays.
     $activities = [];
-    foreach ($activities_me['values'] as $activity) {
-      $activities[] = $activity;
+    if (!empty($activities_me['values'])) {
+      foreach ($activities_me['values'] as $activity) {
+        $activities[] = $activity;
+      }
     }
-    foreach ($activities_none['values'] as $activity) {
-      if (empty($activity['assignee_contact_id'])) {
-        foreach ($activity['target_contact_id'] as $contactID) {
-          if (self::can_view_contact($contactID)) {
-            $activities[] = $activity;
-            break;
+    if (!empty($activities_none['values'])) {
+      foreach ($activities_none['values'] as $activity) {
+        if (empty($activity['assignee_contact_id'])) {
+          foreach ($activity['target_contact_id'] as $contactID) {
+            if (self::can_view_contact($contactID)) {
+              $activities[] = $activity;
+              break;
+            }
           }
         }
       }