PHP PDO MySQL scrollable cursor doesn't work

Question

For instance, I have a table with two fields: id, value. I\'ve inserted almost 100k rows in this table.

I want to use scrollable cursor. I wrote the following code:<

Answer 1

Seems that mysql does not support scrollable cursors.

https://bugs.php.net/bug.php?id=34625

http://www.php.net/manual/en/pdostatement.fetch.php#105277

Will PDO laststatment->fetchAll(PDO::FETCH_COLUMN, $column) rerun the query each call?