init

vendor/yiisoft/yii2/i18n/Locale.php

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+<?php
+/**
+ * @link http://www.yiiframework.com/
+ * @copyright Copyright (c) 2008 Yii Software LLC
+ * @license http://www.yiiframework.com/license/
+ */
+
+namespace yii\i18n;
+
+use Yii;
+use yii\base\Component;
+use yii\base\InvalidConfigException;
+
+/**
+ * Locale provides various locale information via convenient methods.
+ *
+ * The class requires [PHP intl extension](http://php.net/manual/en/book.intl.php) to be installed.
+ * @since 2.0.14
+ *
+ * @property string $currencySymbol This property is read-only.
+ *
+ */
+class Locale extends Component
+{
+    /**
+     * @var string the locale ID.
+     * If not set, [[\yii\base\Application::language]] will be used.
+     */
+    public $locale;
+
+
+    /**
+     * {@inheritdoc}
+     */
+    public function init()
+    {
+        if (!extension_loaded('intl')) {
+            throw new InvalidConfigException('Locale component requires PHP intl extension to be installed.');
+        }
+
+        if ($this->locale === null) {
+            $this->locale = Yii::$app->language;
+        }
+    }
+
+    /**
+     * Returns a currency symbol
+     *
+     * @param string $currencyCode the 3-letter ISO 4217 currency code to get symbol for. If null,
+     * method will attempt using currency code from [[locale]].
+     * @return string
+     */
+    public function getCurrencySymbol($currencyCode = null)
+    {
+        $locale = $this->locale;
+
+        if ($currencyCode !== null) {
+            $locale .= '@currency=' . $currencyCode;
+        }
+
+        $formatter = new \NumberFormatter($locale, \NumberFormatter::CURRENCY);
+        return $formatter->getSymbol(\NumberFormatter::CURRENCY_SYMBOL);
+    }
+}