# Lipad SDK Usage Guide
## Introduction
The Lipad SDK for PHP facilitates the integration of Lipad's payment and checkout features into your PHP applications. This comprehensive guide will assist you in the setup and utilization of the Lipad SDK.
## Prerequisites
Before getting started, ensure you have the following:
- PHP installed on your server or development environment.
- Lipad API credentials, including the IV Key, Consumer Secret, Consumer Key.
## Installation
1. **Download the Lipad SDK:**
Download the Lipad SDK and include it in your project.
```bash
# Example using Composer
composer require lipad/lipad-sdk
2. **Include the Composer autoloader in your PHP file:**
```bash
require_once 'vendor/autoload.php';
3. **Instantiate the Lipad class with your credentials:**
```bash
use Lipad\LipadSdk\Lipad;
// Replace these values with your actual credentials
$IVKey = 'your_iv_key';
$consumerSecret = 'your_consumer_secret';
$environment = 'sandbox';
## Checkout Usage
1. **To initialize the Lipad class, provide the $IVKey, $consumerKey, $consumerSecret, and $environment parameters. The $environment should be one of the following: 'production' or 'sandbox'.**
```bash
$lipad = new Lipad($IVKey, $consumerKey, $consumerSecret, $environment);
2. **Validate Payload**
```bash
try {
$lipad->validateCheckoutPayload($payload);
} catch (Exception $error) {
echo 'Error: ' . $error->getMessage() . "\n";
}
3. **Encrypt Payload**
```bash
$encryptedPayload = $lipad->encrypt($payload);
4. **Get Checkout Status**
```bash
try {
$lipad->getCheckoutStatus($payload["merchant_transaction_id"]);
} catch (Exception $error) {
echo 'Error: ' . $error->getMessage() . "\n";
}
5. **Build Checkout URL**
```bash
try {
$checkoutUrl =
'
checkout2.dev.lipad.io' .
urlencode($accessKey) .
'&payload=' .
urlencode($encryptedPayload);
echo 'Checkout URL: ' . $checkoutUrl . "\n";
} catch (Exception $error) {
echo 'Error: ' . $error->getMessage() . "\n";
}
## Direct …