give / vendor / moneyphp / money / src / Currencies / ISOCurrencies.php

ISOCurrencies.php in GiveWP – Donation Plugin and Fundraising Platform 4.17.0, at vendor/moneyphp/money/src/Currencies/ISOCurrencies.php

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1	<?php
2
3	namespace Money\Currencies;
4
5	use Money\Currencies;
6	use Money\Currency;
7	use Money\Exception\UnknownCurrencyException;
8
9	/**
10	* List of supported ISO 4217 currency codes and names.
11	*
12	* @author Mathias Verraes
13	*/
14	final class ISOCurrencies implements Currencies
15	{
16	/**
17	* Map of known currencies indexed by code.
18	*
19	* @var array
20	*/
21	private static $currencies;
22
23	/**
24	* {@inheritdoc}
25	*/
26	public function contains(Currency $currency)
27	{
28	return isset($this->getCurrencies()[$currency->getCode()]);
29	}
30
31	/**
32	* {@inheritdoc}
33	*/
34	public function subunitFor(Currency $currency)
35	{
36	if (!$this->contains($currency)) {
37	throw new UnknownCurrencyException('Cannot find ISO currency '.$currency->getCode());
38	}
39
40	return $this->getCurrencies()[$currency->getCode()]['minorUnit'];
41	}
42
43	/**
44	* Returns the numeric code for a currency.
45	*
46	* @return int
47	*
48	* @throws UnknownCurrencyException If currency is not available in the current context
49	*/
50	public function numericCodeFor(Currency $currency)
51	{
52	if (!$this->contains($currency)) {
53	throw new UnknownCurrencyException('Cannot find ISO currency '.$currency->getCode());
54	}
55
56	return $this->getCurrencies()[$currency->getCode()]['numericCode'];
57	}
58
59	/**
60	* @return \Traversable
61	*/
62	#[\ReturnTypeWillChange]
63	public function getIterator()
64	{
65	return new \ArrayIterator(
66	array_map(
67	function ($code) {
68	return new Currency($code);
69	},
70	array_keys($this->getCurrencies())
71	)
72	);
73	}
74
75	/**
76	* Returns a map of known currencies indexed by code.
77	*
78	* @return array
79	*/
80	private function getCurrencies()
81	{
82	if (null === self::$currencies) {
83	self::$currencies = $this->loadCurrencies();
84	}
85
86	return self::$currencies;
87	}
88
89	/**
90	* @return array
91	*/
92	private function loadCurrencies()
93	{
94	$file = __DIR__.'/../../resources/currency.php';
95
96	if (file_exists($file)) {
97	return require $file;
98	}
99
100	throw new \RuntimeException('Failed to load currency ISO codes.');
101	}
102	}
103