Fixed #54648 PDO::MSSQL forces format of datetime fields

adopted patch by steven dot lambeth at gmx dot de

Author: weltling

ext/pdo_dblib/dblib_stmt.c

@@ -265,6 +265,25 @@ static int pdo_dblib_stmt_get_col(pdo_stmt_t *stmt, int colno, char **ptr,
 			*ptr = tmp_ptr;
 			break;
 		}
+		case SQLDATETIM4:
+		case SQLDATETIME: {
+			DBDATETIME dt;
+			DBDATEREC di;
+
+			dbconvert(H->link, coltype, (BYTE*) *ptr, -1, SQLDATETIME, (LPBYTE) &dt, -1);
+			dbdatecrack(H->link, &di, &dt);
+
+			*len = spprintf((char**) &tmp_ptr, 20, "%d-%02d-%02d %02d:%02d:%02d",
+#ifdef PHP_DBLIB_IS_MSSQL || MSDBLIB
+					di.year,     di.month,       di.day,        di.hour,     di.minute,     di.second
+#else
+					di.dateyear, di.datemonth+1, di.datedmonth, di.datehour, di.dateminute, di.datesecond
+#endif
+				);
+
+			*ptr = (char*) tmp_ptr;
+			break;
+		}
 		default:
 			if (dbwillconvert(coltype, SQLCHAR)) {
 				tmp_len = 32 + (2 * (*len)); /* FIXME: We allocate more than we need here */

ext/pdo_dblib/tests/bug_54648.phpt

@@ -0,0 +1,26 @@
+--TEST--
+PDO_DBLIB: Does not force correct dateformat
+--SKIPIF--
+<?php
+if (!extension_loaded('pdo_dblib')) die('skip not loaded');
+require dirname(__FILE__) . '/config.inc';
+?>
+--FILE--
+<?php
+require dirname(__FILE__) . '/config.inc';
+$db->query('set dateformat ymd'); 
+$rs = $db->query("select cast('1950-01-18 23:00:00' as smalldatetime) as sdt, cast('2030-01-01 23:59:59' as datetime) as dt");
+var_dump($rs->fetchAll(PDO::FETCH_ASSOC));
+echo "Done.\n";
+?>
+--EXPECT--
+array(1) {
+  [0]=>
+  array(2) {
+    ["sdt"]=>
+    string(19) "1950-01-18 23:00:00"
+    ["dt"]=>
+    string(19) "2030-01-01 23:59:59"
+  }
+}
+Done.