| 1: | <?php |
| 2: | |
| 3: | /** |
| 4: | * APC CacheResource |
| 5: | * CacheResource Implementation based on the KeyValueStore API to use |
| 6: | * memcache as the storage resource for Smarty's output caching. |
| 7: | * * |
| 8: | * |
| 9: | * @package CacheResource-examples |
| 10: | * @author Uwe Tews |
| 11: | */ |
| 12: | class Smarty_CacheResource_Apc extends Smarty_CacheResource_KeyValueStore |
| 13: | { |
| 14: | /** |
| 15: | * Smarty_CacheResource_Apc constructor. |
| 16: | * |
| 17: | * @throws \Exception |
| 18: | */ |
| 19: | public function __construct() |
| 20: | { |
| 21: | // test if APC is present |
| 22: | if (!function_exists('apc_cache_info')) { |
| 23: | throw new Exception('APC Template Caching Error: APC is not installed'); |
| 24: | } |
| 25: | } |
| 26: | |
| 27: | /** |
| 28: | * Read values for a set of keys from cache |
| 29: | * |
| 30: | * @param array $keys list of keys to fetch |
| 31: | * |
| 32: | * @return array list of values with the given keys used as indexes |
| 33: | * @return boolean true on success, false on failure |
| 34: | */ |
| 35: | protected function read(array $keys) |
| 36: | { |
| 37: | $_res = array(); |
| 38: | $res = apc_fetch($keys); |
| 39: | foreach ($res as $k => $v) { |
| 40: | $_res[ $k ] = $v; |
| 41: | } |
| 42: | return $_res; |
| 43: | } |
| 44: | |
| 45: | /** |
| 46: | * Save values for a set of keys to cache |
| 47: | * |
| 48: | * @param array $keys list of values to save |
| 49: | * @param int $expire expiration time |
| 50: | * |
| 51: | * @return boolean true on success, false on failure |
| 52: | */ |
| 53: | protected function write(array $keys, $expire = null) |
| 54: | { |
| 55: | foreach ($keys as $k => $v) { |
| 56: | apc_store($k, $v, $expire); |
| 57: | } |
| 58: | return true; |
| 59: | } |
| 60: | |
| 61: | /** |
| 62: | * Remove values from cache |
| 63: | * |
| 64: | * @param array $keys list of keys to delete |
| 65: | * |
| 66: | * @return boolean true on success, false on failure |
| 67: | */ |
| 68: | protected function delete(array $keys) |
| 69: | { |
| 70: | foreach ($keys as $k) { |
| 71: | apc_delete($k); |
| 72: | } |
| 73: | return true; |
| 74: | } |
| 75: | |
| 76: | /** |
| 77: | * Remove *all* values from cache |
| 78: | * |
| 79: | * @return boolean true on success, false on failure |
| 80: | */ |
| 81: | protected function purge() |
| 82: | { |
| 83: | return apc_clear_cache('user'); |
| 84: | } |
| 85: | } |
| 86: |