Explicitly mark nullable parameters

CHANGELOG.md

@@ -25,6 +25,7 @@
 - Enh #372: Rename `ColumnSchemaInterface` to `ColumnInterface` (@Tigrov)
 - Enh #373: Replace `DbArrayHelper::getColumn()` with `array_column()` (@Tigrov)
 - New #374: Add `IndexType` and `IndexMethod` classes (@Tigrov)
+- Bug #377: Explicitly mark nullable parameters (@vjik)
 
 ## 1.2.0 March 21, 2024
 

src/Connection.php

@@ -39,7 +39,7 @@ public function close(): void
         }
     }
 
-    public function createCommand(string $sql = null, array $params = []): PdoCommandInterface
+    public function createCommand(?string $sql = null, array $params = []): PdoCommandInterface
     {
         $command = new Command($this);
 

src/DDLQueryBuilder.php

@@ -82,8 +82,8 @@ public function createIndex(
         string $table,
         string $name,
         array|string $columns,
-        string $indexType = null,
-        string $indexMethod = null
+        ?string $indexType = null,
+        ?string $indexMethod = null
     ): string {
         return 'CREATE ' . (!empty($indexType) ? $indexType . ' ' : '') . 'INDEX '
             . $this->quoter->quoteTableName($name)

src/DMLQueryBuilder.php

@@ -28,7 +28,7 @@ public function insertWithReturningPks(string $table, QueryInterface|array $colu
         throw new NotSupportedException(__METHOD__ . ' is not supported by Mysql.');
     }
 
-    public function resetSequence(string $table, int|string $value = null): string
+    public function resetSequence(string $table, int|string|null $value = null): string
     {
         $tableSchema = $this->schema->getTableSchema($table);