$gupshup = new OutboundMessage('SRC_NAME', 'SOURCE', 'API_KEY');

$gupshup->setText('Texto de prueba');
$gupshup->sendRequest('573111111111');

$url = "https://www.buildquickbots.com/whatsapp/media/sample/jpg/sample01.jpg";
$caption =  "Sample image";

$gupshup->setImage($url, $caption);
$gupshup->sendRequest('573111111111');

$url = "https://www.buildquickbots.com/whatsapp/media/sample/jpg/sample01.jpg";

$gupshup->setAudio($url);
$gupshup->sendRequest('573111111111');

$url = "https://www.buildquickbots.com/whatsapp/media/sample/pdf/sample01.pdf";
$filename = "Sample funtional resume";

$gupshup->setFile($url, $filename);
$gupshup->sendRequest('573111111111');

$url = "https://www.buildquickbots.com/whatsapp/media/sample/video/sample01.mp4";
$caption = "Sample video";

$gupshup->setFile($url, $filename);
$gupshup->sendRequest('573111111111');

$url = "http://www.buildquickbots.com/whatsapp/stickers/SampleSticker01.webp";

$gupshup->setFile($url, $filename);
$gupshup->sendRequest('573111111111');

$globalButtons[] = [
    'type' => 'text',
    'title' => 'Escoger'
];

$items[] = [
    'title' => 'first Section',
    'subtitle' => 'first Subtitle',
    'options' => [
        [
            'type' => 'text',
            'title' => 'section 1 row 1',
            'description' => 'first row of 1 section description',
            'postbackText' => 'section 1 row 1 postback payload'
        ],
        [
            'type' => 'text',
            'title' => 'section 1 row 2',
            'description' => 'second row of 2 section description',
            'postbackText' => 'section 1 row 2 postback payload'
        ],
        [
            'type' => 'text',
            'title' => 'section 1 row 3',
            'description' => 'second row of 3 section description',
            'postbackText' => 'section 1 row 3 postback payload'
        ]
    ]
];

$items[] = [
    'title' => 'Segunda Sección',
    'subtitle' => 'Segundo Subtitulo',
    'options' => [
        [
            'type' => 'text',
            'title' => 'section 2 row 1',
            'description' => 'first row of 1 section description',
            'postbackText' => 'section 1 row 1 postback payload'
        ],
        [
            'type' => 'text',
            'title' => 'section 2 row 2',
            'description' => 'second row of 2 section description',
            'postbackText' => 'section 1 row 2 postback payload'
        ],
        [
            'type' => 'text',
            'title' => 'section 2 row 3',
            'description' => 'second row of 3 section description',
            'postbackText' => 'section 1 row 3 postback payload'
        ]
    ]
];

// Params: $title, $body, $msgid, $globalButtons, $items
$gupshup->setListMessage('title text', 'body text', rand(), $globalButtons, $items);
$gupshup->sendRequest("57311111111");

$content = [
    'type' => 'text',
    'header' => 'this is the header',
    'text' => 'this is the body',
    'caption' => 'this is the footer'
];

$options = [
    [
        'type'          => 'text',
        'title'         => 'Firts',
    ],
    [
        'type'          => 'text',
        'title'         => 'Second',
    ],
    [
        'type'          => 'text',
        'title'         => 'Third',
    ]
];

$msgid = rand();
$gupshup->setQuickRepliesText($msgid, $content, $options);
$gupshup->sendRequest("57311111111");

$content = [
    'type' => 'text',
    'header' => 'this is the header',
    'text' => 'this is the body',
    'caption' => 'this is the footer'
];

$options = [
    [
        'type'          => 'text',
        'title'         => 'Firts',
    ],
    [
        'type'          => 'text',
        'title'         => 'Second',
    ],
    [
        'type'          => 'text',
        'title'         => 'Third',
    ]
];

$msgid = rand();
$gupshup->setQuickRepliesText($msgid, $content, $options);
$gupshup->sendRequest("57311111111");

$templates = $gupshup->getTemplates();

$idtemplate = 'aaaaa-bbbbb-ccccc-dddd-eeee';
$templateparams =  [
    "Agent", 
    "Local Address", 
    "Tracking code"
];

$gupshup->setTemplate($idtemplate, $templateparams);
$gupshup->sendTemplate("57311111111");

$response = $gupshup->getOptin();

$response = $gupshup->markOpt('573111111111', 'in');
$response = $gupshup->markOpt('573111111111', 'out');

$response = $gupshup->getWalletBalance();

<?php
require('../vendor/autoload.php');

use Jaime\WhatsappGupshup\InboundMessageandEvents;

$log = json_decode(file_get_contents('php://input'), true);

$inboundGupshup = new InboundMessageandEvents($log);

switch ($inboundGupshup->getTypeNotification()) {
    case 'user-event':
    // code ..
    break;
    case 'message-event':
        if ($inboundGupshup->getTypePayload() == 'failed') {
            $logfailed = $inboundGupshup->getReasonFailedMessageEvent();
            // code ..
            file_put_contents('log-failed', '(' . date('Y-m-d H:i:s') . ') ' . print_r($logfailed, true) . PHP_EOL, FILE_APPEND | LOCK_EX);
        }
        break;

    default:
        # code...
        break;
}

http_response_code(200);