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(PECL mysqlnd_qc >= 1.0.0)
mysqlnd_qc_set_user_handlers — Sets the callback functions for a user-defined procedural storage handler
$get_hash 
   ,  string $find_query_in_cache 
   ,  string $return_to_cache 
   ,  string $add_query_to_cache_if_not_exists 
   ,  string $query_is_select 
   ,  string $update_query_run_time_stats 
   ,  string $get_stats 
   ,  string $clear_cache 
   )Sets the callback functions for a user-defined procedural storage handler.
get_hash Name of the user function implementing the storage handler get_hash functionality.
find_query_in_cache Name of the user function implementing the storage handler find_in_cache functionality.
return_to_cache Name of the user function implementing the storage handler return_to_cache functionality.
add_query_to_cache_if_not_exists Name of the user function implementing the storage handler add_query_to_cache_if_not_exists functionality.
query_is_select Name of the user function implementing the storage handler query_is_select functionality.
update_query_run_time_stats Name of the user function implementing the storage handler update_query_run_time_stats functionality.
get_stats Name of the user function implementing the storage handler get_stats functionality.
clear_cache Name of the user function implementing the storage handler clear_cache functionality.
Returns TRUE on success or FALSE on FAILURE.