/**
* 读取或者设置缓存
* @access public
* @param string $key 缓存标识，支持变量规则 ，例如 item/:name/:id
* @param mixed $expire 缓存有效期
* @return mixed
*/
public function cache($key, $expire = null)
{
if ($this->isGet()) {
if (false !== strpos($key, ':')) {
$param = $this->param();
foreach ($param as $item => $val) {
if (is_string($val) && false !== strpos($key, ':' . $item)) {
$key = str_replace(':' . $item, $val, $key);
}
}
} elseif ('__URL__' == $key) {
// 当前URL地址作为缓存标识
$key = md5($this->url());
} elseif (strpos($key, ']')) {
if ('[' . $this->ext() . ']' == $key) {
// 缓存某个后缀的请求
$key = md5($this->url());
} else {
return;
}
}
if (strtotime($this->server('HTTP_IF_MODIFIED_SINCE')) + $expire > $_SERVER['REQUEST_TIME']) {
// 读取缓存
$response = Response::create()->code(304);
throw new \think\exception\HttpResponseException($response);
} elseif (Cache::has($key)) {
list($content, $header) = Cache::get($key);
$response = Response::create($content)->header($header);
throw new \think\exception\HttpResponseException($response);
} else {
$this->cache = [$key, $expire];
}
}
}
/**
* 缓存管理
* @param mixed $name 缓存名称，如果为数组表示进行缓存设置
* @param mixed $value 缓存值
* @param mixed $options 缓存参数
* @param string $tag 缓存标签
* @return mixed
*/
function cache($name, $value = '', $options = null, $tag = null)
{
if (is_array($options)) {
// 缓存操作的同时初始化
Cache::connect($options);
} elseif (is_array($name)) {
// 缓存初始化
return Cache::connect($name);
}
if ('' === $value) {
// 获取缓存
return 0 === strpos($name, '?') ? Cache::has(substr($name, 1)) : Cache::get($name);
} elseif (is_null($value)) {
// 删除缓存
return Cache::rm($name);
} else {
// 缓存数据
if (is_array($options)) {
$expire = isset($options['expire']) ? $options['expire'] : null;
//修复查询缓存无法设置过期时间
} else {
$expire = is_numeric($options) ? $options : null;
//默认快捷缓存设置过期时间
}
if (is_null($tag)) {
return Cache::set($name, $value, $expire);
} else {
return Cache::tag($tag)->set($name, $value, $expire);
}
}
}
/**
* 延时更新检查 返回false表示需要延时
* 否则返回实际写入的数值
* @access protected
* @param string $type 自增或者自减
* @param string $guid 写入标识
* @param integer $step 写入步进值
* @param integer $lazyTime 延时时间(s)
* @return false|integer
*/
protected function lazyWrite($type, $guid, $step, $lazyTime)
{
if (!Cache::has($guid . '_time')) {
// 计时开始
Cache::set($guid . '_time', $_SERVER['REQUEST_TIME'], 0);
Cache::$type($guid, $step, 0);
} elseif ($_SERVER['REQUEST_TIME'] > Cache::get($guid . '_time') + $lazyTime) {
// 删除缓存
$value = Cache::$type($guid, $step, 0);
Cache::rm($guid);
Cache::rm($guid . '_time');
return 0 === $value ? false : $value;
} else {
// 更新缓存
Cache::$type($guid, $step, 0);
}
return false;
}
/**
* 检查编译缓存是否存在
* @access public
* @param string $cacheId 缓存的id
* @return boolean
*/
public function isCache($cacheId)
{
if ($cacheId && $this->config['display_cache']) {
// 缓存页面输出
return Cache::has($cacheId);
}
return false;
}
/**
* 设置当前地址的请求缓存
* @access public
* @param string $key 缓存标识，支持变量规则 ，例如 item/:name/:id
* @param mixed $expire 缓存有效期
* @return void
*/
public function cache($key, $expire = null)
{
if (false !== $key && $this->isGet() && !$this->isCheckCache) {
// 标记请求缓存检查
$this->isCheckCache = true;
if (false === $expire) {
// 关闭当前缓存
return;
}
if ($key instanceof \Closure) {
$key = call_user_func_array($key, [$this]);
} elseif (true === $key) {
// 自动缓存功能
$key = '__URL__';
} elseif (strpos($key, '|')) {
list($key, $fun) = explode('|', $key);
}
// 特殊规则替换
if (false !== strpos($key, '__')) {
$key = str_replace(['__MODULE__', '__CONTROLLER__', '__ACTION__', '__URL__'], [$this->module, $this->controller, $this->action, md5($this->url())], $key);
}
if (false !== strpos($key, ':')) {
$param = $this->param();
foreach ($param as $item => $val) {
if (is_string($val) && false !== strpos($key, ':' . $item)) {
$key = str_replace(':' . $item, $val, $key);
}
}
} elseif (strpos($key, ']')) {
if ('[' . $this->ext() . ']' == $key) {
// 缓存某个后缀的请求
$key = md5($this->url());
} else {
return;
}
}
if (isset($fun)) {
$key = $fun($key);
}
if (strtotime($this->server('HTTP_IF_MODIFIED_SINCE')) + $expire > $_SERVER['REQUEST_TIME']) {
// 读取缓存
$response = Response::create()->code(304);
throw new \think\exception\HttpResponseException($response);
} elseif (Cache::has($key)) {
list($content, $header) = Cache::get($key);
$response = Response::create($content)->header($header);
throw new \think\exception\HttpResponseException($response);
} else {
$this->cache = [$key, $expire];
}
}
}
/**
* 读取或者设置缓存
* @access public
* @param string $key 缓存标识，支持变量规则 ，例如 item/:name/:id
* @param mixed $expire 缓存有效期
* @return mixed
*/
public function cache($key, $expire = null)
{
if (false !== strpos($key, ':')) {
$param = $this->param();
foreach ($param as $item => $val) {
if (is_string($val) && false !== strpos($key, ':' . $item)) {
$key = str_replace(':' . $item, $val, $key);
}
}
}
if (Cache::has($key)) {
// 读取缓存
$content = Cache::get($key);
$response = Response::create($content)->code(304)->header('Content-Type', Cache::get($key . '_header'));
throw new \think\exception\HttpResponseException($response);
} else {
$this->cache = [$key, $expire];
}
}
