<?php

$data = [
    'receiver'  => '559999999999',
    'msgtext'   => 'Testando o envio de mensagem por meio da API',
    'sender'    => '559999999999',
    'token'     => 'rBInAz65v4RroU3Ngzqb',
];

$curl = curl_init();

curl_setopt_array($curl, array(
	CURLOPT_URL => 'https://api.dw-api.com/send',
	CURLOPT_RETURNTRANSFER => true,
	CURLOPT_ENCODING => '',
	CURLOPT_MAXREDIRS => 10,
	CURLOPT_TIMEOUT => 0,
	CURLOPT_FOLLOWLOCATION => true,
	CURLOPT_HTTP_VERSION => CURL_HTTP_VERSION_1_1,
	CURLOPT_CUSTOMREQUEST => 'POST',
	CURLOPT_POSTFIELDS => json_encode($data),
	CURLOPT_HTTPHEADER => array(
		'Content-Type: application/json'
	),
));

$response = curl_exec($curl);

curl_close($curl);

echo $response;

?>