Initial

src/inc/datesByCountry.php

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+<?PHP
+/**
+ * This file contains a function for correctly formatting time according to the
+ * user's language.
+ *
+ * @author Joshua Ramon Enslin <joshua@museum-digital.de>
+ */
+declare(strict_types = 1);
+
+/**
+ * Function getDateFormatByLang returns the common date format in a given
+ * country / language.
+ *
+ * @param string $lang Language code to check.
+ *
+ * @thanks Michael Connor (https://gist.github.com/mlconnor/1887156) for
+ *         compiling the underlying array.
+ *
+ * @return string
+ */
+function getDateFormatByLang(string $lang):string {
+
+    $datesByCountry = [
+      'ar' => '%d/%m/%Y',
+      'be' => '%d.%B.%Y',
+      'bg' => '%Y-%B-%d',
+      'ca' => '%d/%m/%Y',
+      'cs' => '%d.%B.%Y',
+      'da' => '%d-%m-%Y',
+      'de' => '%d.%m.%Y',
+      'el' => '%d/%B/%Y',
+      'en' => '%B %d, %Y',
+      'es' => '%d/%m/%Y',
+      'et' => '%d.%m.%Y',
+      'fa' => '%d/%m/%Y',
+      'fi' => '%d.%B.%Y',
+      'fr' => '%d/%m/%Y',
+      'ga' => '%d/%m/%Y',
+      'hr' => '%d.%m.%Y',
+      'hu' => '%Y. %B %d.',
+      'id' => '%d %B %Y',
+      'in' => '%d/%m/%Y',
+      'is' => '%d.%B.%Y',
+      'it' => '%d/%m/%Y',
+      'iw' => '%d/%m/%Y',
+      'ja' => '%Y年%m月%d日',
+      'ka' => '%d.%m.%Y',
+      'ko' => '%Y년 %m월 %d일',
+      'lt' => '%Y.%B.%d',
+      'lv' => '%Y.%d.%B',
+      'mk' => '%d.%B.%Y',
+      'ms' => '%d/%m/%Y',
+      'mt' => '%d/%m/%Y',
+      'nl' => '%d-%B-%Y',
+      'no' => '%d.%m.%Y',
+      'pl' => '%d.%m.%Y',
+      'pt' => '%d/%m/%Y',
+      'ro' => '%d.%m.%Y',
+      'ru' => '%d.%m.%Y',
+      'sk' => '%d.%B.%Y',
+      'sl' => '%d.%B.%Y',
+      'sq' => '%Y-%m-%d',
+      'sr' => '%d.%B.%Y.',
+      'sv' => '%Y-%m-%d',
+      'ta' => '%d-%m-%Y',
+      'tr' => '%d.%m.%Y',
+      'uk' => '%d.%m.%Y',
+      'vi' => '%d/%m/%Y',
+      'zh' => '%Y年%m月%d日',
+    ];
+    if (!isset($datesByCountry[$lang])) return $datesByCountry["en"];
+
+    return $datesByCountry[$lang];
+
+}
+
+/**
+ * Function getDateFormatByLang returns the common date format in a given
+ * country / language.
+ *
+ * @param string $lang Language code to check.
+ *
+ * @thanks Michael Connor (https://gist.github.com/mlconnor/1887156) for
+ *         compiling the underlying array.
+ *
+ * @return string
+ */
+function getMonthFormatByLang(string $lang):string {
+
+    $datesByCountry = [
+      'ar' => '%m/%Y',
+      'be' => '%B %Y',
+      'bg' => '%Y-%B',
+      'ca' => '%m/%Y',
+      'cs' => '%B.%Y',
+      'da' => '%m-%Y',
+      'de' => '%B %Y',
+      'el' => '%B %Y',
+      'en' => '%B %Y',
+      'es' => '%B %Y',
+      'fa' => '%B %Y',
+      'fr' => '%B %Y',
+      'hu' => '%Y. %B',
+      'in' => '%m/%Y',
+      'is' => '%B %Y',
+      'it' => '%B %Y',
+      'iw' => '%m %Y',
+      'ja' => '%Y年%m月',
+      'ka' => '%B %Y',
+      'ko' => '%Y년 %m월',
+      'lt' => '%Y. %B.',
+      'lv' => '%Y. %B',
+      'mk' => '%B %Y',
+      'ms' => '%m %Y',
+      'mt' => '%m %Y',
+      'nl' => '%B %Y',
+      'no' => '%B %Y',
+      'pl' => '%B %Y',
+      'pt' => '%B %Y',
+      'ro' => '%B %Y',
+      'ru' => '%B %Y',
+      'sk' => '%B %Y',
+      'sl' => '%B %Y',
+      'sq' => '%B %Y',
+      'sr' => '%B %Y',
+      'sv' => '%Y-%m',
+      'ta' => '%B %Y',
+      'tr' => '%B %Y',
+      'tl' => '%B %Y',
+      'uk' => '%m %Y',
+      'vi' => '%m %Y',
+      'zh' => '%Y年%m月',
+    ];
+    if (!isset($datesByCountry[$lang])) return $datesByCountry["en"];
+
+    return $datesByCountry[$lang];
+
+}