Shared Memory

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:<?phpfunction 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));}?>

thankyou,this function had a missing comma between test1 and test2 and is fixed belowfunction get_cache_id($name) {    // maintain list of caches here    $id=array(  'test1' => 1,                'test2' => 2                );    return $id[$name];}