updated core to 7.63

includes/install.inc

@@ -779,7 +779,7 @@ function drupal_uninstall_modules($module_list = array(), $uninstall_dependents
     $module_list = array_flip(array_values($module_list));
 
     $profile = drupal_get_profile();
-    while (list($module) = each($module_list)) {
+    foreach (array_keys($module_list) as $module) {
       if (!isset($module_data[$module]) || drupal_get_installed_schema_version($module) == SCHEMA_UNINSTALLED) {
         // This module doesn't exist or is already uninstalled. Skip it.
         unset($module_list[$module]);