WordPress run once class

gistfile1.aw

<?php
/*
* run Once class
*
*/
if (!class_exists('run_once')){
    class run_once{
        function run($key){
            $test_case = get_option('run_once');
            if (isset($test_case[$key]) && $test_case[$key]){
                return false;
            }else{
                $test_case[$key] = true;
                update_option('run_once',$test_case);
                return true;
            }
        }
 
        function clear($key){
            $test_case = get_option('run_once');
            if (isset($test_case[$key])){
                unset($test_case[$key]);
            }
        }
    }
}