สอบถาม JSON กับ PHP หน่อยครับผมต้องการเขียนเพื่อส่ง sms

<?php
//api.infibip.com API user and pass
$username = "xxxxxxxxxxxxxxxx";
$password = "xxxxxxxxxxxxxxxx";

//if (isset($_POST['toInput'])) { 
if(isset($_POST['submit'])){
    
$message=  rawurlencode($_POST['message']);
//$message="Hello Test";
$FromoPhone="081xxxxxx";
$ToPhone="41793026727";    
//$ToPhone=$_POST['phone'];

// URL for sending request
$postUrl = "https://api.infobip.com//sms/1/text/single";

// creating an object for sending SMS
$destination = array("messageId" => $messageId, "to" => $ToPhone);

//    $message = array("from" => $FromoPhone,
//        "destinations" => array($destination),
//        "text" => $message,
//        "notifyUrl" => $notifyUrl,
//        "notifyContentType" => $notifyContentType,
//        "callbackData" => $callbackData);
    
$message = array("from" => $FromoPhone, "destinations" => array($destination),"text" => $message);
    
$postData = array("messages" => array($message));
// encoding object
$postDataJson = json_encode($postData)
    

$ch = curl_init();
$header = array("Content-Type:application/json", "Accept:application/json");

curl_setopt($ch, CURLOPT_URL, $postUrl);
curl_setopt($ch, CURLOPT_HTTPHEADER, $header);
curl_setopt($ch, CURLOPT_HTTPAUTH, CURLAUTH_BASIC);
curl_setopt($ch, CURLOPT_USERPWD, $username . ":" . $password);
curl_setopt($ch, CURLOPT_CONNECTTIMEOUT, 2);
curl_setopt($ch, CURLOPT_RETURNTRANSFER, 1);
curl_setopt($ch, CURLOPT_FOLLOWLOCATION, TRUE);
curl_setopt($ch, CURLOPT_MAXREDIRS, 2);
curl_setopt($ch, CURLOPT_POST, 1);
curl_setopt($ch, CURLOPT_POSTFIELDS, $postDataJson);

// response of the POST request
$response = curl_exec($ch);
$httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
$responseBody = json_decode($response);
curl_close($ch);   
}

//if ($httpCode >= 200 && $httpCode < 300) {
//	$logs = $responseBody->results;
//	foreach ($logs as $log) {
//	    echo "<tr>";
//        echo "<td>" . $log->messageId . "</td>";
//        echo "<td>" . $log->to . "</td>";
//        echo "<td>" . $log->from . "</td>";
//        echo "<td>" . $log->text . "</td>";
//        echo "<td>" . $log->status->groupName . "</td>";
//        echo "<td>" . $log->status->description . "</td>";
//        // format the date
//        $formattedSentAt = date("M d, Y - H:i:s P T", strtotime($log->sentAt));    
//        echo "<td>" . $formattedSentAt . "</td>";
//        echo "</tr>";         
//    }
//}
?>

<form action="<?php echo htmlspecialchars($_SERVER["PHP_SELF"]); ?>" method="POST">
Phone: <input type="text" name="phone"><br>
Message: <input type="text" name="message"><br>
<input type="submit" name="submit" value="sent">
</form>