Edit Report a Bug

    共有メモリ

    add a note add a note

    User Contributed Notes 2 notes

    up
    1
    mattcsl at gmail dot com
    11 years ago
    thankyou,

    this function had a missing comma between test1 and test2 and is fixed below

    function get_cache_id($name) {
        // maintain list of caches here
        $id=array(  'test1' => 1,
                    'test2' => 2
                    );

        return $id[$name];
    }
    up
    1
    makr at makrit dot net
    11 years ago
    shmop made simple:
    $test=get_cache('test');
    save_cache($test, 'test1', 600);

    To save/get cache that easily just save this as cache.php or whatever you see fit:

    <?php

    function save_cache($data, $name, $timeout) {
            // delete cache
            $id=shmop_open(get_cache_id($name), "a", 0, 0);
            shmop_delete($id);
            shmop_close($id);
       
            // get id for name of cache
            $id=shmop_open(get_cache_id($name), "c", 0644, strlen(serialize($data)));
       
            // return int for data size or boolean false for fail
            if ($id) {
                set_timeout($name, $timeout);
            return     shmop_write($id, serialize($data), 0);
        }
        else return     false;
    }

    function     get_cache($name) {
        if (!    check_timeout($name)) {
                $id=shmop_open(get_cache_id($name), "a", 0, 0);

            if (    $id) $data=unserialize(shmop_read($id, 0, shmop_size($id)));
            else return     false;          // failed to load data

                if ($data) {                // array retrieved
                    shmop_close();
                return     $data;
            }
            else return     false;          // failed to load data
            }
        else return     false;              // data was expired
    }

    function     get_cache_id($name) {
            // maintain list of caches here
            $id=array(  'test1' => 1
                        'test2' => 2
                        );

        return     $id[$name];
    }

    function     set_timeout($name, $int) {
            $timeout=new DateTime(date('Y-m-d H:i:s'));
            date_add($timeout, date_interval_create_from_date_string("$int seconds"));
            $timeout=date_format($timeout, 'YmdHis');

            $id=shmop_open(100, "a", 0, 0);
        if (    $id) $tl=unserialize(shmop_read($id, 0, shmop_size($id)));
        else     $tl=array();
            shmop_delete($id);
            shmop_close($id);

            $tl[$name]=$timeout;
            $id=shmop_open(100, "c", 0644, strlen(serialize($tl)));
            shmop_write($id, serialize($tl), 0);
    }

    function     check_timeout($name) {
            $now=new DateTime(date('Y-m-d H:i:s'));
            $now=date_format($now, 'YmdHis');

            $id=shmop_open(100, "a", 0, 0);
        if (    $id) $tl=unserialize(shmop_read($id, 0, shmop_size($id)));
        else return     true;
            shmop_close($id);

            $timeout=$tl[$name];
        return (    intval($now)>intval($timeout));
    }

    ?>
    add a note add a note
    To Top