Diesel price of JET petrol station in Penzberg (melody script)

diesel-preis.php

<?php

<<<CONFIG
packages:
    - "fabpot/goutte: ^3.1"
    - "symfony/console: ^3.1"
CONFIG;

use Goutte\Client;
use Symfony\Component\Console\Input\ArrayInput;
use Symfony\Component\Console\Output\ConsoleOutput;
use Symfony\Component\Console\Style\SymfonyStyle;
use Symfony\Component\DomCrawler\Crawler;

$page = 'http://www.clever-tanken.de/tankstelle_details/2039';

$client = new Client();
$crawler = $client->request('GET', $page);

$price = (float) trim($crawler->filter('.fuel-price-entry .price-field > span')->text());

switch ($price) {
    case ($price >= 1.10):
        $highlight = 'fg=red';
        break;

    case ($price <= 1.05):
        $highlight = 'fg=yellow';
        break;

    case ($price < 1):
        $highlight = 'fg=green';
        break;

    default:
        $highlight = 'fg=white';
        break;
}

$updateInfo = trim($crawler->filter('.fuel-price-header')->text());
preg_match('/Letzte Aktualisierung: (.*)/', $updateInfo, $matches);

$io = new SymfonyStyle(new ArrayInput([]), new ConsoleOutput());
$io->writeln(sprintf('<%3$s>%1$02.2f EUR</%3$s> (%2$s)', $price, $matches[1], $highlight));