Developer
composer/semver
===============
Semver (Semantic Versioning) library that offers utilities, version constraint parsing and validation.
Originally written as part of [composer/composer](https://github.com/composer/composer),
now extracted and made available as a stand-alone library.
[](https://github.com/composer/semver/actions/workflows/continuous-integration.yml)
[](https://github.com/composer/semver/actions/workflows/lint.yml)
[](https://github.com/composer/semver/actions/workflows/phpstan.yml)
Installation
------------
Install the latest version with:
```bash
composer require composer/semver
```
Requirements
------------
* PHP 5.3.2 is required but using the latest version of PHP is highly recommended.
Version Comparison
------------------
For details on how versions are compared, refer to the [Versions](https://getcomposer.org/doc/articles/versions.md)
article in the documentation section of the [getcomposer.org](https://getcomposer.org) website.
Basic usage
-----------
### Comparator
The [`Composer\Semver\Comparator`](https://github.com/composer/semver/blob/main/src/Comparator.php) class provides the following methods for comparing versions:
* greaterThan($v1, $v2)
* greaterThanOrEqualTo($v1, $v2)
* lessThan($v1, $v2)
* lessThanOrEqualTo($v1, $v2)
* equalTo($v1, $v2)
* notEqualTo($v1, $v2)
Each function takes two version strings as arguments and returns a boolean. For example:
```php
use Composer\Semver\Comparator;
Comparator::greaterThan('1.25.0', '1.24.0'); // 1.25.0 > 1.24.0
```
### Semver
The [`Composer\Semver\Semver`](https://github.com/composer/semver/blob/main/src/Semver.php) class provides the following methods:
* satisfies($version, $constraints)
* satisfiedBy(array $versions, $constraint)
* sort($versions)
* rsort($versions)
### Intervals
The [`Composer\Semver\Intervals`](https://github.com/composer/semver/blob/main/src/Intervals.php) static class provides
a few utilities to work with complex constraints or read version intervals from a constraint:
```php
use Composer\Semver\Intervals;
// Checks whether $candidate is a subset of $constraint
Intervals::isSubsetOf(ConstraintInterface $candidate, ConstraintInterface $constraint);
// Checks whether $a and $b have any intersection, equivalent to $a->matches($b)
Intervals::haveIntersections(ConstraintInterface $a, ConstraintInterface $b);
// Optimizes a complex multi constraint by merging all intervals down to the smallest
// possible multi constraint. The drawbacks are this is not very fast, and the resulting
// multi constraint will have no human readable prettyConstraint configured on it
Intervals::compactConstraint(ConstraintInterface $constraint);
// Creates an array of numeric intervals and branch constraints representing a given constraint
Intervals::get(ConstraintInterface $constraint);
// Clears the memoization cache when you are done processing constraints
Intervals::clear()
```
See the class docblocks for more details.
License
-------
composer/semver is licensed under the MIT License, see the LICENSE file for details.
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"
}