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- <?php
- /**
- * XCache class
- */
- if (!defined('W3TC')) {
- die();
- }
- require_once W3TC_LIB_W3_DIR . '/Cache/Base.php';
- /**
- * Class W3_Cache_Xcache
- */
- class W3_Cache_Xcache extends W3_Cache_Base {
- /**
- * Adds data
- *
- * @param string $key
- * @param mixed $var
- * @param integer $expire
- * @return boolean
- */
- function add($key, &$var, $expire = 0) {
- if ($this->get($key) === false) {
- return $this->set($key, $var, $expire);
- }
- return false;
- }
- /**
- * Sets data
- *
- * @param string $key
- * @param mixed $var
- * @param integer $expire
- * @return boolean
- */
- function set($key, &$var, $expire = 0) {
- return xcache_set($key, serialize($var), $expire);
- }
- /**
- * Returns data
- *
- * @param string $key
- * @return mixed
- */
- function get($key) {
- return @unserialize(xcache_get($key));
- }
- /**
- * Replaces data
- *
- * @param string $key
- * @param mixed $var
- * @param integer $expire
- * @return boolean
- */
- function replace($key, &$var, $expire = 0) {
- if ($this->get($key) !== false) {
- return $this->set($key, $var, $expire);
- }
- return false;
- }
- /**
- * Deletes data
- *
- * @param string $key
- * @return boolean
- */
- function delete($key) {
- return xcache_unset($key);
- }
- /**
- * Flushes all data
- *
- * @return boolean
- */
- function flush() {
- xcache_clear_cache(XC_TYPE_VAR, 0);
- return true;
- }
- }
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