Smarty核心内容：Caching [缓存]

Caching [缓存]
Setting Up Caching [建立缓存]

 

require('Smarty.class.php');
$smarty = new Smarty;

$smarty->caching = 2; // lifetime is per cache

// set the cache_lifetime for index.tpl to 5 minutes
$smarty->cache_lifetime = 300;
$smarty->display('index.tpl');

// set the cache_lifetime for home.tpl to 1 hour
$smarty->cache_lifetime = 3600;
$smarty->display('home.tpl');

// NOTE: the following $cache_lifetime setting will not work when $caching = 2.//提示：在$chching=2后面的$chche_lifetime不会起作用。// The cache lifetime for home.tpl has already been set// to 1 hour, and will no longer respect the value of $cache_lifetime.// home.tpl的缓存会话期设为1小时后，不会再按$cache_lifetime的值改变。// The home.tpl cache will still expire after 1 hour.// home.tpl的缓存会在1小时后结束。$smarty->cache_lifetime = 30; // 30 seconds$smarty->display('home.tpl');

Multiple Caches Per Page [每页多个缓存]

require('Smarty.class.php');
$smarty = new Smarty;

$smarty->caching = true;

$my_cache_id = $_GET['article_id'];

if(!$smarty->is_cached('index.tpl',$my_cache_id)) {
 // No cache available, do variable assignments here.
 $contents = get_database_contents();
 $smarty->assign($contents);
}
$smarty->display('index.tpl',$my_cache_id);
 

 

Cache Groups [缓存集合]

require('Smarty.class.php');
$smarty = new Smarty;

$smarty->caching = true;

// clear all caches with "sports|basketball" as the first two cache_id groups
$smarty->clear_cache(null,"sports|basketball");

// clear all caches with "sports" as the first cache_id group. This would
// include "sports|basketball", or "sports|(anything)|(anything)|(anything)|..."
$smarty->clear_cache(null,"sports");

$smarty->display('index.tpl',"sports|basketball");

Controlling Cacheability of Plugins' Output [控制插件输出的缓冲能力]

index.php:

require('Smarty.class.php');
$smarty = new Smarty;
$smarty->caching = true;

function remaining_seconds($params, &$smarty) {
 $remain = $params['endtime'] - time();
 if ($remain >=0)
 return $remain . " second(s)";
 else
 return "done";
}

$smarty->register_function('remaining', 'remaining_seconds', false, array('endtime'));

if (!$smarty->is_cached('index.tpl')) {
 // fetch $obj from db and assign...
 $smarty->assign_by_ref('obj', $obj);
}

$smarty->display('index.tpl');

index.tpl:

Time Remaining: {remain endtime=$obj->endtime}

或：

 

index.php:

require('Smarty.class.php');
$smarty = new Smarty;
$smarty->caching = true;

function smarty_block_dynamic($param, $content, &$smarty) {
 return $content;
}
$smarty->register_block('dynamic', 'smarty_block_dynamic', false);

$smarty->display('index.tpl');

index.tpl:

Page created: {"0"|date_format:"%D %H:%M:%S"}

{dynamic}

Now is: {"0"|date_format:"%D %H:%M:%S"}

... do other stuff ...

{/dynamic}