File Source for core.write_cache

<?php
/**
* Smarty plugin
* @package Smarty
* @subpackage plugins
*/
/**
* Prepend the cache information to the cache file
* and write it
*
* @param string $tpl_file
* @param string $cache_id
* @param string $compile_id
* @param string $results
* @return true|null
*/
// $tpl_file, $cache_id, $compile_id, $results
function smarty_core_write_cache_file($params, &$smarty)
{
// put timestamp in cache header
$smarty->_cache_info['timestamp'] = time();
if ($smarty->cache_lifetime > -1){
// expiration set
$smarty->_cache_info['expires'] = $smarty->_cache_info['timestamp'] + $smarty->cache_lifetime;
} else {
// cache will never expire
$smarty->_cache_info['expires'] = -1;
}
// collapse nocache.../nocache-tags
if (preg_match_all('!\{(/?)nocache\:[0-9a-f]{32}#\d+\}!', $params['results'], $match, PREG_PATTERN_ORDER)) {
// remove everything between every pair of outermost noache.../nocache-tags
// and replace it by a single nocache-tag
// this new nocache-tag will be replaced by dynamic contents in
// smarty_core_process_compiled_includes() on a cache-read
$match_count = count($match[0]);
$results = preg_split('!(\{/?nocache\:[0-9a-f]{32}#\d+\})!', $params['results'], -1, PREG_SPLIT_DELIM_CAPTURE);
$level = 0;
$j = 0;
for ($i=0, $results_count = count($results); $i < $results_count && $j < $match_count; $i++) {
if ($results[$i] == $match[0][$j]) {
// nocache tag
if ($match[1][$j]) { // closing tag
$level--;
unset($results[$i]);
} else { // opening tag
if ($level++ > 0) unset($results[$i]);
}
$j++;
} elseif ($level > 0) {
unset($results[$i]);
}
}
$params['results'] = implode('', $results);
}
$smarty->_cache_info['cache_serials'] = $smarty->_cache_serials;
// prepend the cache header info into cache file
$_cache_info = serialize($smarty->_cache_info);
$params['results'] = strlen($_cache_info) . "\n" . $_cache_info . $params['results'];
if (!empty($smarty->cache_handler_func)) {
// use cache_handler function
call_user_func_array($smarty->cache_handler_func,
array('write', &$smarty, &$params['results'], $params['tpl_file'], $params['cache_id'], $params['compile_id'], null));
} else {
// use local cache file
if(!@is_writable($smarty->cache_dir)) {
// cache_dir not writable, see if it exists
if(!@is_dir($smarty->cache_dir)) {
$smarty->trigger_error('the $cache_dir \'' . $smarty->cache_dir . '\' does not exist, or is not a directory.', E_USER_ERROR);
return false;
}
$smarty->trigger_error('unable to write to $cache_dir \'' . realpath($smarty->cache_dir) . '\'. Be sure $cache_dir is writable by the web server user.', E_USER_ERROR);
return false;
}
$_auto_id = $smarty->_get_auto_id($params['cache_id'], $params['compile_id']);
$_cache_file = $smarty->_get_auto_filename($smarty->cache_dir, $params['tpl_file'], $_auto_id);
$_params = array('filename' => $_cache_file, 'contents' => $params['results'], 'create_dirs' => true);
require_once(SMARTY_CORE_DIR . 'core.write_file.php');
smarty_core_write_file($_params, $smarty);
return true;
}
}
/* vim: set expandtab: */
?>

Source for file core.write_cache_file.php