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class Timer in Drupal 8

Same name and namespace in other branches
  1. 9 core/lib/Drupal/Component/Utility/Timer.php \Drupal\Component\Utility\Timer
  2. 10 core/lib/Drupal/Component/Utility/Timer.php \Drupal\Component\Utility\Timer

Provides helpers to use timers throughout a request.

Hierarchy

  • class \Drupal\Component\Utility\Timer

Expanded class hierarchy of Timer

Related topics

4 files declare their use of Timer
batch.inc in core/includes/batch.inc
Batch processing API for processes to run in multiple HTTP requests.
Cron.php in core/lib/Drupal/Core/Cron.php
TimerTest.php in core/tests/Drupal/Tests/Component/Utility/TimerTest.php
ViewUI.php in core/modules/views_ui/src/ViewUI.php

File

core/lib/Drupal/Component/Utility/Timer.php, line 10

Namespace

Drupal\Component\Utility
View source
class Timer {
  protected static $timers = [];

  /**
   * Starts the timer with the specified name.
   *
   * If you start and stop the same timer multiple times, the measured intervals
   * will be accumulated.
   *
   * @param $name
   *   The name of the timer.
   */
  public static function start($name) {
    static::$timers[$name]['start'] = microtime(TRUE);
    static::$timers[$name]['count'] = isset(static::$timers[$name]['count']) ? ++static::$timers[$name]['count'] : 1;
  }

  /**
   * Reads the current timer value without stopping the timer.
   *
   * @param string $name
   *   The name of the timer.
   *
   * @return int
   *   The current timer value in ms.
   */
  public static function read($name) {
    if (isset(static::$timers[$name]['start'])) {
      $stop = microtime(TRUE);
      $diff = round(($stop - static::$timers[$name]['start']) * 1000, 2);
      if (isset(static::$timers[$name]['time'])) {
        $diff += static::$timers[$name]['time'];
      }
      return $diff;
    }
    return static::$timers[$name]['time'];
  }

  /**
   * Stops the timer with the specified name.
   *
   * @param string $name
   *   The name of the timer.
   *
   * @return array
   *   A timer array. The array contains the number of times the timer has been
   *   started and stopped (count) and the accumulated timer value in ms (time).
   */
  public static function stop($name) {
    if (isset(static::$timers[$name]['start'])) {
      $stop = microtime(TRUE);
      $diff = round(($stop - static::$timers[$name]['start']) * 1000, 2);
      if (isset(static::$timers[$name]['time'])) {
        static::$timers[$name]['time'] += $diff;
      }
      else {
        static::$timers[$name]['time'] = $diff;
      }
      unset(static::$timers[$name]['start']);
    }
    return static::$timers[$name];
  }

}

Members

Namesort descending Modifiers Type Description Overrides
Timer::$timers protected static property
Timer::read public static function Reads the current timer value without stopping the timer.
Timer::start public static function Starts the timer with the specified name.
Timer::stop public static function Stops the timer with the specified name.