// auto detect http-client
$client = \Http\Discovery\HttpClientDiscovery::find();

$sender = new \PhpMob\ThaiBulkSms\Sender($client, [
    'username' => 'thaibulksms',
    'password' => 'thisispassword',
    'force' => 'standard',
    'sender' => 'SMS',
    'sandbox' => true,
]);

// send one number
$sender->send('0818282829', 'message');

// send bulk numbers
$sender->send(['0818282829', '..number..'], 'message');

// check credit remain
$sender->checkCredit();

// All `Sender` APIs are return `PhpMob\ThaiBulkSms\Result` object.

$client = new \Http\Adapter\Guzzle6\Client(...);
$sender = new \PhpMob\ThaiBulkSms\Sender($client, [...]);