Fix GH-15893: Pdo\Pgsql backport fixes from GH-16124

Author: devnexen

ext/pdo_pgsql/pgsql_driver.c

@@ -712,11 +712,15 @@ void pgsqlCopyFromArray_internal(INTERNAL_FUNCTION_PARAMETERS)
 				}
 			} ZEND_HASH_FOREACH_END();
 		} else {
-			iter = Z_OBJ_P(pg_rows)->ce->get_iterator(Z_OBJCE_P(pg_rows), pg_rows, 0);
+			iter = Z_OBJCE_P(pg_rows)->get_iterator(Z_OBJCE_P(pg_rows), pg_rows, 0);
 			if (iter == NULL || EG(exception)) {
 				RETURN_THROWS();
 			}
 
+			if (iter->funcs->rewind) {
+				iter->funcs->rewind(iter);
+			}
+
 			for (; iter->funcs->valid(iter) == SUCCESS && EG(exception) == NULL; iter->funcs->move_forward(iter)) {
 				tmp = iter->funcs->get_current_data(iter);
 				if (!_pdo_pgsql_send_copy_data(H, tmp)) {

ext/pdo_pgsql/tests/copy_from_iterator.phpt

@@ -42,6 +42,12 @@ $iterator = new class implements Iterator{
     }
 };
 
+try {
+	$db->pgsqlCopyFromArray('test_copy_from_traversable',new stdClass());
+} catch (\TypeError $e) {
+	echo $e->getMessage() . PHP_EOL;
+}
+
 $db->pgsqlCopyFromArray('test_copy_from_traversable',$iterator);
 
 $stmt = $db->query("select * from test_copy_from_traversable order by 1");
@@ -56,6 +62,7 @@ $db = PDOTest::test_factory(__DIR__ . '/common.phpt');
 $db->query('DROP TABLE IF EXISTS test_copy_from_traversable CASCADE');
 ?>
 --EXPECT--
+PDO::pgsqlCopyFromArray(): Argument #2 ($rows) must be of type array or Traversable
 array (
   0 => 1,
   1 => 1,