update t for sqlite, and o for sqlsrv.

src/Function/Date/EmulatedDateFormatTrait.php

@@ -153,7 +153,7 @@ protected function getEmulatableCharacterForSqlite(string $character): string|Ex
             ),
             'n' => 'LTRIM(STRFTIME(\'%%m\', %s), \'0\')',
             'o' => 'STRFTIME(\'%%Y\', %s, \'weekday 0\', \'-3 days\')',
-            't' => 'STRFTIME(\'%%d\', DATE(%s, \'+1 month\', \'start of month\', \'-1 day\'))',
+            't' => 'STRFTIME(\'%%d\', DATE(%s, \'start of month\', \'+1 month\', \'-1 day\'))',
             'W' => 'PRINTF(\'%%02d\', (STRFTIME(\'%%j\', DATE(%s, \'-3 days\', \'weekday 4\')) - 1) / 7 + 1)',
             'y' => 'SUBSTR(STRFTIME(\'%%Y\', %s), 3, 2)',
             default => null,
@@ -186,7 +186,7 @@ protected function getEmulatableCharacterForSqlsrv(string $character): string|Ex
             'l' => 'DATENAME(WEEKDAY, %s)',
             'M' => 'LEFT(DATENAME(MONTH, %s), 3)',
             'n' => 'CAST(MONTH(%s) AS VARCHAR(2))',
-            'o' => '(CASE WHEN DATEPART(iso_week, %s) = 1 AND MONTH(%s) = 12 THEN YEAR(%s) + 1 WHEN DATEPART(iso_week, %s) > 1 AND MONTH(%s) = 1 THEN YEAR(%s) - 1 ELSE YEAR(%s) END)',
+            'o' => 'YEAR(DATEADD(day, 3 - (DATEPART(dw, %s) + 5) %% 7, %s))',
             't' => 'CAST(DAY(EOMONTH(%s)) AS VARCHAR(2))',
             'U' => 'DATEDIFF(SECOND, \'1970-01-01\', %s)',
             'w' => '(CAST(DATEPART(WEEKDAY, %s) AS VARCHAR(2)) - 1) %% 7',

tests/Function/Date/DateFormatTest.php

@@ -90,6 +90,14 @@
         '1970-06-01 00:00:00',
         '1970-12-31 23:59:59',
 
+        '2005-01-01 00:00:00',
+        '2005-06-01 00:00:00',
+        '2005-12-31 23:59:59',
+
+        '2022-01-01 00:00:00',
+        '2022-03-31 00:00:00',
+        '2022-12-31 00:00:00',
+
         '2023-01-01 00:00:00',
         '2023-06-01 00:00:00',
         '2023-12-31 23:59:59',