zend_cache absolute expiration time

Question

I am using php with zend framework and zend_cache. I have these lines of code for this :`

    $frontendOptions = array ('lifetime' => 12 * 3600, 'automatic_serialization' => true );
    $backendOptions = array ('cache_dir' => APPLICATION_PATH . '/../tmp');
    $cache = Zend_Cache::factory ( 'Core', 'File', $frontendOptions, $backendOptions );

    $CacheName = ('CACHE_NAME');
    $CacheResult = $cache->load ( $CacheName );
    if($CacheResult==false)
        echo 'no cache or chache is expired';
    else 
        var_dump($CacheResult);`

The problem is that when I use save function like this :

$cache->save($data,$CacheName);

I don't want the expire time to be updated. Is there any way to update cache without updating its expiration time?

Answer 1

First of all Zend_Cache of ZF1 stores the given lifetime as fixed expire time. So you only have to calculate the current lifetime in base of the current time and your expire time:

$lifetime = $expirationTime - time();
if ($lifetime > 0) {
    $cache->save($data, $id, $tags, $lifetime);
}

PS: In ZF2 you have to check if the storage checks expiration in base of current time, mtime and given TTL (like the filesystem) or in base of a stored fixed expiration time (like memcache/apc).