Developer
# Constant-Time Encoding [](https://github.com/paragonie/constant_time_encoding/actions) [](https://packagist.org/packages/paragonie/constant_time_encoding) [](https://packagist.org/packages/paragonie/constant_time_encoding) [](https://packagist.org/packages/paragonie/constant_time_encoding) [](https://packagist.org/packages/paragonie/constant_time_encoding) Based on the [constant-time base64 implementation made by Steve "Sc00bz" Thomas](https://github.com/Sc00bz/ConstTimeEncoding), this library aims to offer character encoding functions that do not leak information about what you are encoding/decoding via processor cache misses. Further reading on [cache-timing attacks](http://blog.ircmaxell.com/2014/11/its-all-about-time.html). Our fork offers the following enchancements: * `mbstring.func_overload` resistance * Unit tests * Composer- and Packagist-ready * Base16 encoding * Base32 encoding * Uses `pack()` and `unpack()` instead of `chr()` and `ord()` ## PHP Version Requirements Version 2 of this library should work on **PHP 7** or newer. For PHP 5 support, see [the v1.x branch](https://github.com/paragonie/constant_time_encoding/tree/v1.x). If you are adding this as a dependency to a project intended to work on both PHP 5 and PHP 7, please set the required version to `^1|^2` instead of just `^1` or `^2`. ## How to Install ```sh composer require paragonie/constant_time_encoding ``` ## How to Use ```php use ParagonIE\ConstantTime\Encoding; // possibly (if applicable): // require 'vendor/autoload.php'; $data = random_bytes(32); echo Encoding::base64Encode($data), "\n"; echo Encoding::base32EncodeUpper($data), "\n"; echo Encoding::base32Encode($data), "\n"; echo Encoding::hexEncode($data), "\n"; echo Encoding::hexEncodeUpper($data), "\n"; ``` Example output: ``` 1VilPkeVqirlPifk5scbzcTTbMT2clp+Zkyv9VFFasE= 2VMKKPSHSWVCVZJ6E7SONRY3ZXCNG3GE6ZZFU7TGJSX7KUKFNLAQ==== 2vmkkpshswvcvzj6e7sonry3zxcng3ge6zzfu7tgjsx7kukfnlaq==== d558a53e4795aa2ae53e27e4e6c71bcdc4d36cc4f6725a7e664caff551456ac1 D558A53E4795AA2AE53E27E4E6C71BDCC4D36CC4F6725A7E664CAFF551456AC1 ``` If you only need a particular variant, you can just reference the required class like so: ```php use ParagonIE\ConstantTime\Base64; use ParagonIE\ConstantTime\Base32; $data = random_bytes(32); echo Base64::encode($data), "\n"; echo Base32::encode($data), "\n"; ``` Example output: ``` 1VilPkeVqirlPifk5scbzcTTbMT2clp+Zkyv9VFFasE= 2vmkkpshswvcvzj6e7sonry3zxcng3ge6zzfu7tgjsx7kukfnlaq==== ``` ## Support Contracts If your company uses this library in their products or services, you may be interested in [purchasing a support contract from Paragon Initiative Enterprises](https://paragonie.com/enterprise).
Developer
Initiates a new payment transaction.
| 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"
}