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# Cache_Lite::extendLife()

Cache_Lite::extendLife() -- Extend the life of a valid cache file

## Synopsis

    require_once 'Cache/Lite.php';

``void Cache_Lite::extendLife` ()`

## Description

[since Cache_Lite-1.7.0beta2] Extend the life of an existent cache file. The cache file is "touched", so it starts a new lifetime period. See this feature request for more details.

## Throws

No exceptions thrown.

## Note

This function can not be called statically.

## Example

Example 30-1. Classical use
    <?php
    require_once "Cache/Lite.php";

    $options = array(
        'cacheDir' => '/tmp/',
        'lifeTime' => 7200,
        'pearErrorMode' => CACHE_LITE_ERROR_DIE
    );

    $cache = new Cache_Lite($options);
    $id = 'foo';
    if (!($data = $cache->get($id))) {
        // the cache is not hit !
        $data = '123456789';
        $cache->save($data);
    } else {
        // the cache is hit !
        if (isset($_GET['extend'])) {
            $cache->extendLife();
        }
    }
    echo($data);

    ?>

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