Developer
<?php
namespace Hamcrest\Core;
/*
Copyright (c) 2009 hamcrest.org
*/
use Hamcrest\BaseMatcher;
use Hamcrest\Description;
/**
* Is the value null?
*/
class IsNull extends BaseMatcher
{
private static $_INSTANCE;
private static $_NOT_INSTANCE;
public function matches($item)
{
return is_null($item);
}
public function describeTo(Description $description)
{
$description->appendText('null');
}
/**
* Matches if value is null.
*
* @factory
*/
public static function nullValue()
{
if (!self::$_INSTANCE) {
self::$_INSTANCE = new self();
}
return self::$_INSTANCE;
}
/**
* Matches if value is not null.
*
* @factory
*/
public static function notNullValue()
{
if (!self::$_NOT_INSTANCE) {
self::$_NOT_INSTANCE = IsNot::not(self::nullValue());
}
return self::$_NOT_INSTANCE;
}
}
Developer
To access the Kueue Pay Developer API, you’ll need an API key. You can obtain your API key by logging in to your Kueue Pay merchant account and navigating to the API section. Collect Client ID , Secret ID & Merchant ID Carefully. Keep your API key confidential and do not share it publicly.