Progress example command

ProgressExampleCommand.php

        <?php
        /** @var ProgressHelper $progress */
        $progress = clone $this->getHelper('progress');
        $progress->setFormat(' %current%/%max% [%bar%] %percent%% Elapsed: %elapsed%');
        $progress->setBarCharacter('<info>∎</info>');
        $progress->setEmptyBarCharacter(' ');
        $progress->setBarWidth(100);
        $progress->setProgressCharacter("∎");

        $count = rand(0, 1000);
        $progress->start($output, $count);
        for ($i = 0; $i < $count; $i++) {
            usleep(20000);
            $progress->advance();
        }
        $progress->finish();
        ?>