Update the fallback branch

.github/workflows/php.yml

@@ -8,17 +8,31 @@ permissions:
 jobs:
   build:
 
-    runs-on: ubuntu-latest
+    runs-on: ${{ matrix.operating-system }}
+
+    strategy:
+      matrix:
+        operating-system: [ubuntu-latest, windows-latest, macOS-latest]
+        php-versions: ['7.4', '8.0', '8.1', '8.2', '8.3']
+
+    name: PHP ${{ matrix.php-versions }} Test on ${{ matrix.operating-system }}
 
     steps:
-    - uses: actions/checkout@v3
+    - name: Checkout
+      uses: actions/checkout@v4
+
+    - name: Install PHP
+      uses: shivammathur/setup-php@v2
+      with:
+        php-version: ${{ matrix.php-versions }}
+        extensions: intl
 
     - name: Validate composer.json and composer.lock
       run: composer validate --strict
 
     - name: Cache Composer packages
       id: composer-cache
-      uses: actions/cache@v3
+      uses: actions/cache@v4
       with:
         path: vendor
         key: ${{ runner.os }}-php-${{ hashFiles('**/composer.lock') }}

src/IntlLocaleFormatter.php

@@ -66,7 +66,9 @@ public function __invoke(DateTimeInterface $timestamp, string $format)
     //  in formatted strings.
     // To adjust for this, a custom calendar can be supplied with a cutover date arbitrarily far in the past.
     $calendar = IntlGregorianCalendar::createInstance();
-    $calendar->setGregorianChange(PHP_INT_MIN);
+    // NOTE: IntlGregorianCalendar::createInstance DOES NOT return an IntlGregorianCalendar instance when
+    // using a non-Gregorian locale (e.g. fa_IR)! In that case, setGregorianChange will not exist.
+    if (method_exists($calendar, 'setGregorianChange')) $calendar->setGregorianChange(PHP_INT_MIN);
 
     return (new IntlDateFormatter($this->locale, $date_type, $time_type, $tz, $calendar, $pattern))->format($timestamp);
   }

src/php-8.1-strftime.php

@@ -38,14 +38,8 @@ function strftime (string $format, $timestamp = null, ?string $locale = null) :
 
     $timestamp->setTimezone(new DateTimeZone(date_default_timezone_get()));
 
-    if (empty($locale)) {
-      // get current locale
-      $locale = setlocale(LC_TIME, '0');
-    }
-    // remove trailing part not supported by ext-intl locale
-    $locale = preg_replace('/[^\w-].*$/', '', $locale);
-
     if (class_exists('\\IntlDateFormatter') && !isset($_SERVER['STRFTIME_NO_INTL'])) {
+      $locale = \Locale::canonicalize($locale ?? setlocale(LC_TIME, '0'));
       $locale_formatter = new \PHP81_BC\strftime\IntlLocaleFormatter($locale);
     } else {
       $locale_formatter = new \PHP81_BC\strftime\DateLocaleFormatter($locale);

tests/DateLocaleFormatterTest.php

@@ -13,9 +13,17 @@ class DateLocaleFormatterTest extends TestCase {
     public static function setUpBeforeClass () : void {
       date_default_timezone_set('Europe/Madrid');
       $_SERVER['STRFTIME_NO_INTL'] = true;
+
+      set_error_handler(
+        static function ( $errno, $errstr ) {
+          throw new \ErrorException( $errstr, $errno );
+        },
+        E_ALL
+      );
     }
 
     public static function tearDownAfterClass () : void {
       unset($_SERVER['STRFTIME_NO_INTL']);
+      restore_error_handler();
     }
   }

tests/LocaleTests/Locale_en_EN_TestTrait.php

@@ -11,8 +11,8 @@ public function testLocale_en_EN () {
       $locale = 'en-EN';
 
       if (__CLASS__ == 'PHP81_BC\Tests\DateLocaleFormatterTest') {
-        $this->expectNotice();
-        $this->expectNoticeMessage('Formatting without \\IntlDateFormatter only return english formats');
+        $this->expectException(\ErrorException::class);
+        $this->expectExceptionMessage('Formatting without \\IntlDateFormatter only return english formats');
       }
 
       $result = strftime('%a', '20220306 13:02:03', $locale);
@@ -31,10 +31,16 @@ public function testLocale_en_EN () {
       $this->assertEquals('Mar', $result, '%h: Abbreviated month name, based on the locale (an alias of %b)');
 
       $result = strftime('%X', '20220306 13:02:03', $locale);
-      $this->assertEquals('1:02:03 PM', $result, '%X: Preferred time representation based on locale, without the date');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('1:02:03 PM'), // PHP-7
+        $this->equalTo('13:02:03')   // PHP-8
+      ), '%X: Preferred time representation based on locale, without the date');
 
       $result = strftime('%c', '20220306 13:02:03', $locale);
-      $this->assertEquals('March 6, 2022 at 1:02 PM', $result, '%c: Preferred date and time stamp based on locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('March 6, 2022 at 1:02 PM'), // PHP-7
+        $this->equalTo('March 6, 2022 at 13:02')   // PHP-8
+      ), '%c: Preferred date and time stamp based on locale');
 
       $result = strftime('%x', '20220306 13:02:03', $locale);
       $this->assertEquals('3/6/22', $result, '%x: Preferred date representation based on locale, without the time');

tests/LocaleTests/Locale_es_ES_TestTrait.php

@@ -17,19 +17,28 @@ public function testLocale_es_ES () {
       }
 
       $result = strftime('%a', '20220306 13:02:03', $locale);
-      $this->assertEquals('dom.', $result, '%a: An abbreviated textual representation of the day');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('dom.'), // PHP-7
+        $this->equalTo('dom')   // PHP-8
+      ), '%a: An abbreviated textual representation of the day');
 
       $result = strftime('%A', '20220306 13:02:03', $locale);
       $this->assertEquals('domingo', $result, '%A: A full textual representation of the day');
 
       $result = strftime('%b', '20220306 13:02:03', $locale);
-      $this->assertEquals('mar.', $result, '%b: Abbreviated month name, based on the locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('mar.'), // PHP-7
+        $this->equalTo('mar')   // PHP-8
+      ), '%b: Abbreviated month name, based on the locale');
 
       $result = strftime('%B', '20220306 13:02:03', $locale);
       $this->assertEquals('marzo', $result, '%B: Full month name, based on the locale');
 
       $result = strftime('%h', '20220306 13:02:03', $locale);
-      $this->assertEquals('mar.', $result, '%h: Abbreviated month name, based on the locale (an alias of %b)');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('mar.'), // PHP-7
+        $this->equalTo('mar')   // PHP-8
+      ), '%h: Abbreviated month name, based on the locale (an alias of %b)');
 
       $result = strftime('%X', '20220306 13:02:03', $locale);
       $this->assertEquals('13:02:03', $result, '%X: Preferred time representation based on locale, without the date');

tests/LocaleTests/Locale_eu_TestTrait.php

@@ -26,7 +26,10 @@ public function testLocale_eu () {
       $this->assertEquals('mar.', $result, '%b: Abbreviated month name, based on the locale');
 
       $result = strftime('%B', '20220306 13:02:03', $locale);
-      $this->assertEquals('martxoa', $result, '%B: Full month name, based on the locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('martxoak'),
+        $this->equalTo('martxoa')   // PHP-7.4, PHP-8.3
+      ), '%B: Full month name, based on the locale');
 
       $result = strftime('%h', '20220306 13:02:03', $locale);
       $this->assertEquals('mar.', $result, '%h: Abbreviated month name, based on the locale (an alias of %b)');
@@ -35,7 +38,11 @@ public function testLocale_eu () {
       $this->assertEquals('13:02:03', $result, '%X: Preferred time representation based on locale, without the date');
 
       $result = strftime('%c', '20220306 13:02:03', $locale);
-      $this->assertEquals('2022(e)ko martxoaren 6(a) 13:02', $result, '%c: Preferred date and time stamp based on locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('2022(e)ko martxoaren 6(a) 13:02'),  // PHP-7.4
+        $this->equalTo('2022(e)ko martxoakren 6(a) 13:02'),
+        $this->equalTo('2022(e)ko martxoaren 6(a) (13:02)') // PHP-8.3
+      ), '%c: Preferred date and time stamp based on locale');
 
       $result = strftime('%x', '20220306 13:02:03', $locale);
       $this->assertEquals('22/3/6', $result, '%x: Preferred date representation based on locale, without the time');

tests/LocaleTests/Locale_it_CH_TestTrait.php

@@ -35,7 +35,10 @@ public function testLocale_it_CH () {
       $this->assertEquals('13:02:03', $result, '%X: Preferred time representation based on locale, without the date');
 
       $result = strftime('%c', '20220306 13:02:03', $locale);
-      $this->assertEquals('6 marzo 2022 13:02', $result, '%c: Preferred date and time stamp based on locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('6 marzo 2022 13:02'),
+        $this->equalTo('6 marzo 2022 alle ore 13:02') // PHP-8.3
+      ), '%c: Preferred date and time stamp based on locale');
 
       $result = strftime('%x', '20220306 13:02:03', $locale);
       $this->assertEquals('06.03.22', $result, '%x: Preferred date representation based on locale, without the time');

tests/LocaleTests/Locale_it_IT_TestTrait.php

@@ -35,7 +35,10 @@ public function testLocale_it_IT () {
       $this->assertEquals('13:02:03', $result, '%X: Preferred time representation based on locale, without the date');
 
       $result = strftime('%c', '20220306 13:02:03', $locale);
-      $this->assertEquals('6 marzo 2022 13:02', $result, '%c: Preferred date and time stamp based on locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('6 marzo 2022 13:02'),
+        $this->equalTo('6 marzo 2022 alle ore 13:02') // PHP-8.3
+      ), '%c: Preferred date and time stamp based on locale');
 
       $result = strftime('%x', '20220306 13:02:03', $locale);
       $this->assertEquals('06/03/22', $result, '%x: Preferred date representation based on locale, without the time');

tests/strftimeTest.php

@@ -133,7 +133,10 @@ public function testTimeFormats () {
       $this->assertEquals('13:02:03', $result, '%T: Same as "%H:%M:%S"');
 
       $result = strftime('%X', '20220306 13:02:03', 'en-EN');
-      $this->assertEquals('1:02:03 PM', $result, '%X: Preferred time representation based on locale, without the date');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('1:02:03 PM'),
+        $this->equalTo('13:02:03') // PHP-8
+      ), '%X: Preferred time representation based on locale, without the date');
 
       $result = strftime('%z', '20220306 13:02:03');
       $this->assertEquals('+0100', $result, '%z: The time zone offset');
@@ -144,7 +147,10 @@ public function testTimeFormats () {
 
     public function testStampsFormats () {
       $result = strftime('%c', '20220306 13:02:03', 'en-EN');
-      $this->assertEquals('March 6, 2022 at 1:02 PM', $result, '%c: Preferred date and time stamp based on locale');
+      $this->assertThat($result, $this->logicalOr(
+        $this->equalTo('March 6, 2022 at 1:02 PM'),
+        $this->equalTo('March 6, 2022 at 13:02') // PHP-8
+      ), '%c: Preferred date and time stamp based on locale');
 
       $result = strftime('%D', '20220306 13:02:03');
       $this->assertEquals('03/06/2022', $result, '%D: Same as "%m/%d/%y"');