Issue #3236798 by alexpott:...

Issue #3236798 by alexpott: \Drupal\Core\Datetime\DateFormatter::formatInterval() causes deprecations in PHP 8.1

core/includes/batch.inc

@@ -360,9 +360,9 @@ function _batch_process() {
       '@total'      => $total,
       '@current'    => floor($current),
       '@percentage' => $percentage,
-      '@elapsed'    => \Drupal::service('date.formatter')->formatInterval($elapsed / 1000),
+      '@elapsed'    => \Drupal::service('date.formatter')->formatInterval((int) ($elapsed / 1000)),
       // If possible, estimate remaining processing time.
-      '@estimate'   => ($current > 0) ? \Drupal::service('date.formatter')->formatInterval(($elapsed * ($total - $current) / $current) / 1000) : '-',
+      '@estimate'   => ($current > 0) ? \Drupal::service('date.formatter')->formatInterval((int) (($elapsed * ($total - $current) / $current) / 1000)) : '-',
     ];
     $message    = strtr($progress_message, $values);
 
@@ -453,7 +453,7 @@ function _batch_finished() {
       if (is_callable($batch_set['finished'])) {
         $queue = _batch_queue($batch_set);
         $operations = $queue->getAllItems();
-        $batch_set_result = call_user_func_array($batch_set['finished'], [$batch_set['success'], $batch_set['results'], $operations, \Drupal::service('date.formatter')->formatInterval($batch_set['elapsed'] / 1000)]);
+        $batch_set_result = call_user_func_array($batch_set['finished'], [$batch_set['success'], $batch_set['results'], $operations, \Drupal::service('date.formatter')->formatInterval((int) ($batch_set['elapsed'] / 1000))]);
         // If a batch 'finished' callback requested a redirect after the batch
         // is complete, save that for later use. If more than one batch set
         // returned a redirect, the last one is used.

core/modules/views/src/Plugin/views/field/TimeInterval.php

@@ -82,7 +82,7 @@ public function buildOptionsForm(&$form, FormStateInterface $form_state) {
    */
   public function render(ResultRow $values) {
     $value = $values->{$this->field_alias};
-    return $this->dateFormatter->formatInterval($value, isset($this->options['granularity']) ? $this->options['granularity'] : 2);
+    return $this->dateFormatter->formatInterval((int) $value, isset($this->options['granularity']) ? $this->options['granularity'] : 2);
   }
 
 }

core/scripts/run-tests.sh

@@ -1311,7 +1311,7 @@ function simpletest_script_reporter_write_xml_results() {
 function simpletest_script_reporter_timer_stop() {
   echo "\n";
   $end = Timer::stop('run-tests');
-  echo "Test run duration: " . \Drupal::service('date.formatter')->formatInterval($end['time'] / 1000);
+  echo "Test run duration: " . \Drupal::service('date.formatter')->formatInterval((int) ($end['time'] / 1000));
   echo "\n\n";
 }