HELP

Include following code in your PHP file to start sending messages.

define("SERVER", "https://app.sms-gateway.app");
define("API_KEY", "YOUR_API_KEY_HERE");

define("USE_SPECIFIED", 0);
define("USE_ALL_DEVICES", 1);
define("USE_ALL_SIMS", 2);

/**
 * @param string     $number      The mobile number where you want to send message.
 * @param string     $message     The message you want to send.
 * @param int|string $device      The ID of a device you want to use to send this message.
 * @param int        $schedule    Set it to timestamp when you want to send this message.
 * @param bool       $isMMS       Set it to true if you want to send MMS message instead of SMS.
 * @param string     $attachments Comma separated list of image links you want to attach to the message. Only works for MMS messages.
 *
 * @return array     Returns The array containing information about the message.
 * @throws Exception If there is an error while sending a message.
 */
function sendSingleMessage($number, $message, $device = 0, $schedule = null, $isMMS = false, $attachments = null)
{
    $url = SERVER . "/services/send.php";
    $postData = array(
        'number' => $number,
        'message' => $message,
        'schedule' => $schedule,
        'key' => API_KEY,
        'devices' => $device,
        'type' => $isMMS ? "mms" : "sms",
        'attachments' => $attachments
    );
    return sendRequest($url, $postData)["messages"][0];
}

/**
 * @param array  $messages        The array containing numbers and messages.
 * @param int    $option          Set this to USE_SPECIFIED if you want to use devices and SIMs specified in devices argument.
 *                                Set this to USE_ALL_DEVICES if you want to use all available devices and their default SIM to send messages.
 *                                Set this to USE_ALL_SIMS if you want to use all available devices and all their SIMs to send messages.
 * @param array  $devices         The array of ID of devices you want to use to send these messages.
 * @param int    $schedule        Set it to timestamp when you want to send these messages.
 * @param bool   $useRandomDevice Set it to true if you want to send messages using only one random device from selected devices.
 *
 * @return array     Returns The array containing messages.
 *                   For example :-
 *                   [
 *                      0 => [
 *                              "ID" => "1",
 *                              "number" => "+11234567890",
 *                              "message" => "This is a test message.",
 *                              "deviceID" => "1",
 *                              "simSlot" => "0",
 *                              "userID" => "1",
 *                              "status" => "Pending",
 *                              "type" => "sms",
 *                              "attachments" => null,
 *                              "sentDate" => "2018-10-20T00:00:00+02:00",
 *                              "deliveredDate" => null
 *                              "groupID" => ")V5LxqyBMEbQrl9*J$5bb4c03e8a07b7.62193871"
 *                           ]
 *                   ]
 * @throws Exception If there is an error while sending messages.
 */
function sendMessages($messages, $option = USE_SPECIFIED, $devices = [], $schedule = null, $useRandomDevice = false)
{
    $url = SERVER . "/services/send.php";
    $postData = [
        'messages' => json_encode($messages),
        'schedule' => $schedule,
        'key' => API_KEY,
        'devices' => json_encode($devices),
        'option' => $option,
        'useRandomDevice' => $useRandomDevice
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param int    $listID      The ID of the contacts list where you want to send this message.
 * @param string $message     The message you want to send.
 * @param int    $option      Set this to USE_SPECIFIED if you want to use devices and SIMs specified in devices argument.
 *                            Set this to USE_ALL_DEVICES if you want to use all available devices and their default SIM to send messages.
 *                            Set this to USE_ALL_SIMS if you want to use all available devices and all their SIMs to send messages.
 * @param array  $devices     The array of ID of devices you want to use to send the message.
 * @param int    $schedule    Set it to timestamp when you want to send this message.
 * @param bool   $isMMS       Set it to true if you want to send MMS message instead of SMS.
 * @param string $attachments Comma separated list of image links you want to attach to the message. Only works for MMS messages.
 *
 * @return array     Returns The array containing messages.
 * @throws Exception If there is an error while sending messages.
 */
function sendMessageToContactsList($listID, $message, $option = USE_SPECIFIED, $devices = [], $schedule = null, $isMMS = false, $attachments = null)
{
    $url = SERVER . "/services/send.php";
    $postData = [
        'listID' => $listID,
        'message' => $message,
        'schedule' => $schedule,
        'key' => API_KEY,
        'devices' => json_encode($devices),
        'option' => $option,
        'type' => $isMMS ? "mms" : "sms",
        'attachments' => $attachments
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param int $id The ID of a message you want to retrieve.
 *
 * @return array     The array containing a message.
 * @throws Exception If there is an error while getting a message.
 */
function getMessageByID($id)
{
    $url = SERVER . "/services/read-messages.php";
    $postData = [
        'key' => API_KEY,
        'id' => $id
    ];
    return sendRequest($url, $postData)["messages"][0];
}

/**
 * @param string $groupID The group ID of messages you want to retrieve.
 *
 * @return array     The array containing messages.
 * @throws Exception If there is an error while getting messages.
 */
function getMessagesByGroupID($groupID)
{
    $url = SERVER . "/services/read-messages.php";
    $postData = [
        'key' => API_KEY,
        'groupId' => $groupID
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param string $status         The status of messages you want to retrieve.
 * @param int    $startTimestamp Search for messages sent or received after this time.
 * @param int    $endTimestamp   Search for messages sent or received before this time.
 *
 * @return array     The array containing messages.
 * @throws Exception If there is an error while getting messages.
 */
function getMessagesByStatus($status, $startTimestamp = null, $endTimestamp = null)
{
    $url = SERVER . "/services/read-messages.php";
    $postData = [
        'key' => API_KEY,
        'status' => $status,
        'startTimestamp' => $startTimestamp,
        'endTimestamp' => $endTimestamp
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param int $id The ID of a message you want to resend.
 *
 * @return array     The array containing a message.
 * @throws Exception If there is an error while resending a message.
 */
function resendMessageByID($id)
{
    $url = SERVER . "/services/resend.php";
    $postData = [
        'key' => API_KEY,
        'id' => $id
    ];
    return sendRequest($url, $postData)["messages"][0];
}

/**
 * @param string $groupID The group ID of messages you want to resend.
 * @param string $status  The status of messages you want to resend.
 *
 * @return array     The array containing messages.
 * @throws Exception If there is an error while resending messages.
 */
function resendMessagesByGroupID($groupID, $status = null)
{
    $url = SERVER . "/services/resend.php";
    $postData = [
        'key' => API_KEY,
        'groupId' => $groupID,
        'status' => $status
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param string $status         The status of messages you want to retrieve.
 * @param int    $startTimestamp Resend messages sent or received after this time.
 * @param int    $endTimestamp   Resend messages sent or received before this time.
 *
 * @return array     The array containing messages.
 * @throws Exception If there is an error while resending messages.
 */
function resendMessagesByStatus($status, $startTimestamp = null, $endTimestamp = null)
{
    $url = SERVER . "/services/resend.php";
    $postData = [
        'key' => API_KEY,
        'status' => $status,
        'startTimestamp' => $startTimestamp,
        'endTimestamp' => $endTimestamp
    ];
    return sendRequest($url, $postData)["messages"];
}

/**
 * @param int    $listID      The ID of the contacts list where you want to add this contact.
 * @param string $number      The mobile number of the contact.
 * @param string $name        The name of the contact.
 * @param bool   $resubscribe Set it to true if you want to resubscribe this contact if it already exists.
 *
 * @return array     The array containing a newly added contact.
 * @throws Exception If there is an error while adding a new contact.
 */
function addContact($listID, $number, $name = null, $resubscribe = false)
{
    $url = SERVER . "/services/manage-contacts.php";
    $postData = [
        'key' => API_KEY,
        'listID' => $listID,
        'number' => $number,
        'name' => $name,
        'resubscribe' => $resubscribe
    ];
    return sendRequest($url, $postData)["contact"];
}

/**
 * @param int    $listID The ID of the contacts list from which you want to unsubscribe this contact.
 * @param string $number The mobile number of the contact.
 *
 * @return array     The array containing the unsubscribed contact.
 * @throws Exception If there is an error while setting subscription to false.
 */
function unsubscribeContact($listID, $number)
{
    $url = SERVER . "/services/manage-contacts.php";
    $postData = [
        'key' => API_KEY,
        'listID' => $listID,
        'number' => $number,
        'unsubscribe' => true
    ];
    return sendRequest($url, $postData)["contact"];
}

/**
 * @return string    The amount of message credits left.
 * @throws Exception If there is an error while getting message credits.
 */
function getBalance()
{
    $url = SERVER . "/services/send.php";
    $postData = [
        'key' => API_KEY
    ];
    $credits = sendRequest($url, $postData)["credits"];
    return is_null($credits) ? "Unlimited" : $credits;
}

function sendRequest($url, $postData)
{
    $ch = curl_init();
    curl_setopt($ch, CURLOPT_URL, $url);
    curl_setopt($ch, CURLOPT_POST, true);
    curl_setopt($ch, CURLOPT_RETURNTRANSFER, true);
    curl_setopt($ch, CURLOPT_POSTFIELDS, http_build_query($postData));
    $response = curl_exec($ch);
    $httpCode = curl_getinfo($ch, CURLINFO_HTTP_CODE);
    if (curl_errno($ch)) {
        throw new Exception(curl_error($ch));
    }
    curl_close($ch);
    if ($httpCode == 200) {
        $json = json_decode($response, true);
        if ($json == false) {
            if (empty($response)) {
                throw new Exception("Missing data in request. Please provide all the required information to send messages.");
            } else {
                throw new Exception($response);
            }
        } else {
            if ($json["success"]) {
                return $json["data"];
            } else {
                throw new Exception($json["error"]["message"]);
            }
        }
    } else {
        throw new Exception("HTTP Error Code : {$httpCode}");
    }
}

Send Single Message

try {
    // Send a message using the primary device.
    $msg = sendSingleMessage("+11234567890", "This is a test of single message.");

    // Send a message using the Device ID 1.
    $msg = sendSingleMessage("+11234567890", "This is a test of single message.", 1);
    
    // Send a MMS message with image using the Device ID 1.
    $attachments = "https://example.com/images/footer-logo.png,https://example.com/downloads/sms-gateway/images/section/create-chat-bot.png";
    $msg = sendSingleMessage("+11234567890", "This is a test of single message.", 1, null, true, $attachments);
	
    // Send a message using the SIM in slot 1 of Device ID 1 (Represented as "1|0").
    // SIM slot is an index so the index of the first SIM is 0 and the index of the second SIM is 1.
    // In this example, 1 represents Device ID and 0 represents SIM slot index.
    $msg = sendSingleMessage("+11234567890", "This is a test of single message.", "1|0");

    // Send scheduled message using the primary device.
    $msg = sendSingleMessage("+11234567890", "This is a test of schedule feature.", null, strtotime("+2 minutes"));
    print_r($msg);

    echo "Successfully sent a message.";
} catch (Exception $e) {
    echo $e->getMessage();
}

Send Bulk Messages

$messages = array();

for ($i = 1; $i <= 12; $i++) {
    array_push($messages,
        [
            "number" => "+11234567890",
            "message" => "This is a test #{$i} of PHP version. Testing bulk message functionality."
        ]);
}

try {
    // Send messages using the primary device.
    sendMessages($messages);

    // Send messages using default SIM of all available devices. Messages will be split between all devices.
    sendMessages($messages, USE_ALL_DEVICES);
	
    // Send messages using all SIMs of all available devices. Messages will be split between all SIMs.
    sendMessages($messages, USE_ALL_SIMS);

    // Send messages using only specified devices. Messages will be split between devices or SIMs you specified.
    // If you send 12 messages using this code then 4 messages will be sent by Device ID 1, other 4 by SIM in slot 1 of 
    // Device ID 2 (Represendted as "2|0") and remaining 4 by SIM in slot 2 of Device ID 2 (Represendted as "2|1").
    sendMessages($messages, USE_SPECIFIED, [1, "2|0", "2|1"]);
    
    // Send messages on schedule using the primary device.
    sendMessages($messages, null, null, strtotime("+2 minutes"));
    
    // Send a message to contacts in contacts list with ID of 1.
    sendMessageToContactsList(1, "Test", USE_SPECIFIED, 1);
    
    // Send a message on schedule to contacts in contacts list with ID of 1.
    sendMessageToContactsList(1, "Test", null, null, strtotime("+2 minutes"));
    
    // Array of image links to attach to MMS message;
    $attachments = [
        "https://example.com/images/footer-logo.png",
        "https://example.com/downloads/sms-gateway/images/section/create-chat-bot.png"
    ];
    $attachments = implode(',', $attachments);
    
    $mmsMessages = [];
    for ($i = 1; $i <= 12; $i++) {
        array_push($mmsMessages,
            [
                "number" => "+11234567890",
                "message" => "This is a test #{$i} of PHP version. Testing bulk MMS message functionality.",
                "type" => "mms",
                "attachments" => $attachments
            ]);
    }
    // Send MMS messages using all SIMs of all available devices. Messages will be split between all SIMs.
    $msgs = sendMessages($mmsMessages, USE_ALL_SIMS);
    
    print_r($msgs);

    echo "Successfully sent bulk messages.";
} catch (Exception $e) {
    echo $e->getMessage();
}

Get remaining message credits

try {
    $credits = getBalance();
    echo "Message Credits Remaining: {$credits}";
} catch (Exception $e) {
    echo $e->getMessage();
}

Get messages and their current status

try {
    // Get a message using the ID.
    $msg = getMessageByID(1);
    print_r($msg);

    // Get messages using the Group ID.
    $msgs = getMessagesByGroupID(')V5LxqyBMEbQrl9*J$5bb4c03e8a07b7.62193871');
    print_r($msgs);
    
    // Get messages received in last 24 hours.
    $msgs = getMessagesByStatus("Received", time() - 86400);
    print_r($msgs);
} catch (Exception $e) {
    echo $e->getMessage();
}

Resend messages

try {
    // Resend a message using the ID.
    $msg = resendMessageByID(1);
    print_r($msg);

    // Get messages using the Group ID and Status.
    $msgs = resendMessagesByGroupID('LV5LxqyBMEbQrl9*J$5bb4c03e8a07b7.62193871', 'Failed');
    print_r($msgs);
    
    // Resend pending messages in last 24 hours.
    $msgs = resendMessagesByStatus("Pending", time() - 86400);
    print_r($msgs);
} catch (Exception $e) {
    echo $e->getMessage();
}

Manage Contacts

try {
    // Add a new contact to contacts list 1 or resubscribe the contact if it already exists.
    $contact = addContact(1, "+11234567890", "Test", true);
    print_r($contact);
    
    // Unsubscribe a contact using the mobile number.
    $contact = unsubscribeContact(1, "+11234567890");
    print_r($contact);
} catch (Exception $e) {
    echo $e->getMessage();
}