WhatsApp API

$token = '1xmrd7YHjff5';
$array = [
    [
        'chatId' => '79999999999@c.us', // Recipient's phone number
        'message' => 'Привет! Как дела?', // Message
    ],
];

$ch = curl_init();
curl_setopt($ch, CURLOPT_URL, 'https://app.api-messenger.com/sendmessage?token=' . $token);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, json_encode($array));
curl_setopt($ch, CURLOPT_HTTPHEADER, array('Content-type: application/json; charset=utf-8'));
curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
curl_setopt($ch, CURLOPT_SSL_VERIFYPEER, false);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 5);
$result = curl_exec($ch); // We will send a request
curl_close($ch);
$data = json_decode($result, true); // Parse the received JSON into an array
echo $data['status'] . ': ' . $data['message'];

// First, install the webhook according to the documentation.
//  for example at http://you.site/incoming_message.php

//  Decode the JSON that came over the webhook.
$data = json_decode(file_get_contents('php://input'), true);
foreach($data['messages'] as $message) { 
    //  Process each message here already:
    //  Add to the database or answer right away 
}