digitemp-rrdgraph/sbin/send_info.php

<?php

define('APPDIR', dirname(__DIR__));

require_once APPDIR.'/vendor/autoload.php';

$config = json_decode(file_get_contents(APPDIR.'/etc/config.json'), true);

$digitemp = new Orrisroot\DigiTemp($config['digitemp'], APPDIR.'/'.$config['digitemp_config']);
$rrdtemp = new Orrisroot\Rrd\Temperature(APPDIR.'/'.$config['database_dir']);
$num = $digitemp->getNumSensors();
$sensors = [];
for ($i = 0; $i < $num; ++$i) {
    $id = $digitemp->getSensorId($i);
    $rrdtemp->addSensor($id);
    $sensors[] = $rrdtemp->readLastData($id);
}

$from = $config['mail_from'];
$from_name = $config['mail_from_name'];
$to = $config['mail_info_to'];
$subject = $config['mail_info_subject'];
$loader = new Twig\Loader\FilesystemLoader(APPDIR.'/'.$config['templates_dir']);
$twig = new Twig\Environment($loader);
$data = [
    'from' => [
        'name' => $from_name,
        'email' => $from,
    ],
    'sensors' => $sensors,
    'url' => $config['url'],
];
$body = $twig->render($config['mail_info_template'], $data);

$from = new Orrisroot\Mail\Address($from_name, $from);
$tos = [new Orrisroot\Mail\Address($to, $to)];
Orrisroot\Mail\UTF8_Mailer::sendMail($from, $tos, $subject, $body);