/home/kueuepay/www/vendor/phpseclib/phpseclib/phpseclib/Math/BigInteger/Engines/BCMath/Base.php
<?php

/**
 * Modular Exponentiation Engine
 *
 * PHP version 5 and 7
 *
 * @author    Jim Wigginton <terrafrost@php.net>
 * @copyright 2017 Jim Wigginton
 * @license   http://www.opensource.org/licenses/mit-license.html  MIT License
 * @link      http://pear.php.net/package/Math_BigInteger
 */

namespace phpseclib3\Math\BigInteger\Engines\BCMath;

use phpseclib3\Math\BigInteger\Engines\BCMath;

/**
 * Sliding Window Exponentiation Engine
 *
 * @author  Jim Wigginton <terrafrost@php.net>
 */
abstract class Base extends BCMath
{
    /**
     * Cache constants
     *
     * $cache[self::VARIABLE] tells us whether or not the cached data is still valid.
     *
     */
    const VARIABLE = 0;
    /**
     * $cache[self::DATA] contains the cached data.
     *
     */
    const DATA = 1;

    /**
     * Test for engine validity
     *
     * @return bool
     */
    public static function isValidEngine()
    {
        return static::class != __CLASS__;
    }

    /**
     * Performs modular exponentiation.
     *
     * @param BCMath $x
     * @param BCMath $e
     * @param BCMath $n
     * @param string $class
     * @return BCMath
     */
    protected static function powModHelper(BCMath $x, BCMath $e, BCMath $n, $class)
    {
        if (empty($e->value)) {
            $temp = new $class();
            $temp->value = '1';
            return $x->normalize($temp);
        }

        return $x->normalize(static::slidingWindow($x, $e, $n, $class));
    }

    /**
     * Modular reduction preparation
     *
     * @param string $x
     * @param string $n
     * @param string $class
     * @see self::slidingWindow()
     * @return string
     */
    protected static function prepareReduce($x, $n, $class)
    {
        return static::reduce($x, $n);
    }

    /**
     * Modular multiply
     *
     * @param string $x
     * @param string $y
     * @param string $n
     * @param string $class
     * @see self::slidingWindow()
     * @return string
     */
    protected static function multiplyReduce($x, $y, $n, $class)
    {
        return static::reduce(bcmul($x, $y), $n);
    }

    /**
     * Modular square
     *
     * @param string $x
     * @param string $n
     * @param string $class
     * @see self::slidingWindow()
     * @return string
     */
    protected static function squareReduce($x, $n, $class)
    {
        return static::reduce(bcmul($x, $x), $n);
    }
}
Initiate Payment

Initiate Payment

Initiates a new payment transaction.

Endpoint: POST create-order
Parameter Type Details
amount decimal Your Amount , Must be rounded at 2 precision.
currency string Currency Code, Must be in Upper Case (Alpha-3 code)
success_url string Enter your return or success URL
cancel_url string (optional) Enter your cancel or failed URL
                    
                        Request Example (guzzle)
                        

<?php
require_once('vendor/autoload.php');
$client = new \GuzzleHttp\Client();
$response = $client->request('POST', $base_url.'create-order', [
'headers' => [
  'Authorization' => 'Bearer '. $authorizationToken,
  'accept' => 'application/json',
  'content-type' => 'application/json',
 ],
'form_params' => [
  'amount' => '$amount',
  'currency' => 'currency',
  'success_url' => 'success_url',
  'cancel_url' => 'cancel_url',
 ],
]);
echo $response->getBody();
                    
                        
**Response: SUCCESS (200 OK)**
{
 "message": {
 "success": [
  "Order created successfully."
 ]
},
"data": {
 "redirect_url":"https://example.com/login/OISADFDFSDFSF",
 "order_details":{
 "amount" : "10",
 "fixed_charge" : 2,
 "percent_charge" : 1,
 "total_charge" : 3,
 "total_payable" : 13,
 "currency" : "USD",
 "expiry_time": "2024-04-25T06:48:35.984285Z",
 "success_url": "http://127.0.0.1/nfcpay/user/transaction/success",
 "cancel_url": "http://127.0.0.1/nfcpay/user/transaction/cancel"
}
},
"type": "success"
}
                    
                        
**Response: ERROR (400 FAILED)**
{
 "message": {
 "error": [
  "Invalid token."
 ]
},
"data": null,
"type": "error"
}