<?php
// PHP SOLUTION
$url = 'https://api.sendberry.com/SMS/SEND';
$recepients[] = "447700809111";
$recepients[] = "447700809112";
$recepients[] = "447700809113";
$data["key"] = "API KEY";
$data["name"] = "USERNAME";
$data["password"] = "PASSWORD#";
$data["content"] = "Welcome to Sendberry";
$data["from"] = "Info SMS";
$data["webhook"] = "WEBHOOK FOR QUERY RESULT";
$data["id"] = "YOUR OWN SMS ID TO LINK WITH";
$data["inbox"] = "WEBHOOK FOR RECIEVING SMS";
$data["response"] = "JSON"; // Optional. (JSON or GET)
$data_string = "";
foreach ($data AS $k=>$v) $data_string.=($data_string==""?"?":"&")."$k=".urlencode($v);
$to = implode("&to[]=",$recepients);
$data_string.= "&to[]=".$to;
$url.=$data_string;
$response = file_get_contents($url);
var_dump(json_decode($response,true)); //RESPONSE

var url = "https://api.sendberry.com/SMS/SEND";
var params = new Object;
params.key = 'API key';
params.name = "Username";
params.password = "Password";
params.content = "Welcome to Sendberry";
params.to[0] = "447700809111";
params.to[1] = "447700809112";
params.to[1] = "447700809113";
request.from = "Sendberry";
request.SMS_ID = "UNIQUE REFERENCE"; // Optional. SMS campaign reference.
request.callback = "CALLBACK URL FOR QUERY RESULT"; // Optional.
request.chatcallback = "SMS ANSWERS WEBHOOK";
request.responseformat = "JSON" // Optional. (JSON or GET)
var MyRequest = new XMLHttpRequest();
MyRequest.open('POST', url, true);
MyRequest.setRequestHeader('Content-type', 'application/x-www-form- urlencoded');
MyRequest.onreadystatechange = function() {//Call a function when the state changes.
  if(MyRequest.readyState == 4 && MyRequest.status == 200) {
    var response = this.responseText; // Handle the result
  }
} 
MyRequest.send(request);