use SMS\SMS;

$sms = new SMS('/path/to/gammu', '/path/to/config', 'section_name');

$number = '+1234567890';
$message = 'Hello, World!';

$response = '';
$sms->send($number, $message, $response);

if ($response) {
    echo "SMS sent successfully!\n";
} else {
    echo "Failed to send SMS.\n";
}

$folder = 'inbox';
$start = 1;
$stop = 10;

$response = '';
$sms->delete($folder, $start, $stop, $response);

if ($response) {
    echo "SMS deleted successfully!\n";
} else {
    echo "Failed to delete SMS.\n";
}

$messages = $sms->getMessages();

// Process and display the messages
foreach ($messages as $folder => $messageList) {
    foreach ($messageList as $messageId => $message) {
        // Process individual message data
    }
}

$contacts = $sms->getPhoneBook();

// Process and display the contacts
foreach ($contacts as $index => $contact) {
    // Process individual contact data
}