PDO::PARAM_EVT_FREE
Deallocation event
PDO::PARAM_EVT_EXEC_PRE
Event triggered prior to execution of a prepared statement.
PDO::PARAM_EVT_EXEC_POST
Event triggered subsequent to execution of a prepared statement.
PDO::PARAM_EVT_FETCH_PRE
Event triggered prior to fetching a result from a resultset.
PDO::PARAM_EVT_FETCH_POST
Event triggered subsequent to fetching a result from a resultset.
PDO::PARAM_EVT_NORMALIZE
Event triggered during bound parameter registration allowing the driver to normalize the parameter name.
