Yii2编程指南：运行Cron服务的方法

# Edit this file to introduce tasks to be run by cron.
# 
# Each task to run has to be defined through a single line
# indicating with different fields when the task will be run
# and what command to run for the task
# 
# To define the time you can provide concrete values for
# minute (m), hour (h), day of month (dom), month (mon),
# and day of week (dow) or use '*' in these fields (for 'any').# 
# Notice that tasks will be started based on the cron's system
# daemon's notion of time and timezones.
# 
# Output of the crontab jobs (including errors) is sent through
# email to the user the crontab file belongs to (unless redirected).
# 
# For example, you can run a backup of all your user accounts
# at 5 a.m every week with:
# 0 5 * * 1 tar -zcf /var/backups/home.tgz /home/
# 
# For more information see the manual pages of crontab(5) and cron(8)
# 
# m h  dom mon dow   command
*/3 * * * * wget -O /dev/null https://meetingplanner.io/daemon/frequent
*/15 * * * * wget -O /dev/null http://meetingplanner.io/daemon/quarter
0 * * * * wget -O /dev/null http://meetingplanner.io/daemon/hourly
15 1 * * * wget -O /dev/null http://meetingplanner.io/daemon/overnight
40 2 * * * /usr/sbin/automysqlbackup
15 3 * * 5 wget -O /dev/null http://meetingplanner.io/daemon/weekly
30 2 * * 1 /opt/letsencrypt/letsencrypt-auto renew >> /var/log/le-renew.log

// only cron jobs and admins can run this controller's actions
    public function beforeAction($action)
    {
      // your custom code here, if you want the code to run before action filters,
      // which are triggered on the [[EVENT_BEFORE_ACTION]] event, e.g. PageCache or AccessControl
      if (!parent::beforeAction($action)) {
          return false;
      }
      // other custom code here
      if (( $_SERVER['REMOTE_ADDR'] == $_SERVER['SERVER_ADDR'] ) ||
          (!\Yii::$app->user->isGuest && \common\models\User::findOne(Yii::$app->user->getId())->isAdmin()))
       {
         return true;
       }
      return false; // or false to not run the action
    }

<?php
namespace console\controllers;

use Yii;
use yii\helpers\Url;
use yii\console\Controller;
use frontend\models\Twixxr;

/**
 * Test controller
 */
class DaemonController extends Controller {

    public function actionIndex() {
        echo "Yes, cron service is running.";
    }

    public function actionFrequent() {
      // called every two minutes
      // */2 * * * * ~/sites/www/yii2/yii test
      $time_start = microtime(true);
      $x = new \frontend\models\Twixxr();
      $x->process($time_start);
      $time_end = microtime(true);
      echo 'Processing for '.($time_end-$time_start).' seconds';
    }

    public function actionQuarter() {
        // called every fifteen minutes
        $x = new \frontend\models\Twixxr();
        $x->loadProfiles();
      }

      public function actionHourly() {
        // every hour
        $current_hour = date('G');
        if ($current_hour%4) {
          // every four hours
        }
            if ($current_hour%6) {
            // every six hours
          }
      	}

$ sudo crontab -l
# m h  dom mon dow   command
*/3 * * * * /var/www/twixxr/yii daemon/frequent
*/15 * * * * /var/www/twixxr/yii daemon/quarter
0 * * * * /var/www/twixxr/yii daemon/hourly
15 1 * * * /var/www/twixxr/yii daemon/overnight
15 3 * * 5 /var/www/twixxr/yii daemon/weekly
#40 2 * * * /usr/sbin/automysqlbackup
30 2 * * 1 /usr/bin/letsencrypt renew >> /var/log/le-renew.log