Cronjobs for Shell scripts in CakePHP

CronShell.php

<?php

use \Cron\CronExpression;

App::uses('AppShell', 'Console/Command');

class CronShell extends AppShell {

    protected $_tasks = [];

    public function schelude() {
        $this->add('*/5 * * * *', 'url_name_cleaning');
        $this->add('*/10 * * * *', 'campaigns');
    }

    public function main() {
        $this->out(date('Y-m-d H:i:s', time()));
        $this->hr();

        $this->schelude();
        $this->run();
    }

    public function add($expression, $task) {
        $data = [
            'exp' => CronExpression::factory($expression),
            'task' => $task
        ];

        $this->_tasks[] = $data;
    }

    public function run() {
        $toExecute = [];

        foreach ($this->_tasks as $task) {
            if ($task['exp']->isDue()) {
                $toExecute[] = $task['task'];
            }
        }

        if (empty($toExecute)) {
            $this->out('No tasks to run now! Terminating...');
            $this->hr();
            return;
        }

        $this->out(count($toExecute) . ' task(s) to execute!');

        foreach ($toExecute as $task) {
            $this->out('- ' . $task);
        }

        $this->hr();
        $this->out('RUNNING...');

        foreach ($toExecute as $task) {
            $this->dispatchShell($task);
        }
    }
}