<?php
    require 'vendor/autoload.php';
    use Plivo\RestAPI;
    $auth_id = "Your AUTH_ID";
    $auth_token = "Your AUTH_TOKEN";
    $p = new RestAPI($auth_id, $auth_token);
    // Send a message
    $params = array(
            'src' => 'ALPHA-ID', // Sender's Alphanumeric ID
            'dst' => '447441906862', // Receiver's phone number with country ode
            'text' => 'Hi, text from Plivo' // Your SMS text message
        );
    $response = $p->send_message($params);
    // Print the response
    print_r ($response['response']);
?>