Is there a function for closing a mysql prepared statement with PDO?

Question

In mysqli prepared statements there ismysqli_stmt::close() (Closes a prepared statement):

$stmt->close();

I have searched php.net and th

Answer 1

To free the result set you can apply basic PHP way.

If you are returning the results with PDOStatement::fetchAll() then you would need to unset() the variable to clear it:

$variable = $stmt->fetchAll();

unset($variable);
// or:
$variable = null; 

Or PDOStatement::closeCursor() (Closes the cursor, enabling the statement to be executed again.) may be helpful:

$success = $stmt->closeCursor();