/**
* session初始化
*
* @param array $config
*
* @throws \Think\Exception\Exception
*/
public static function init(array $config = array())
{
if (empty($config)) {
$config = Config::get('session');
}
// 记录初始化信息
APP_DEBUG && Log::record('[ SESSION ] INIT ' . var_export($config, true), 'info');
$isDoStart = false;
if (isset($config['use_trans_sid'])) {
ini_set('session.use_trans_sid', $config['use_trans_sid'] ? 1 : 0);
}
// 启动session
if (!empty($config['auto_start']) && PHP_SESSION_ACTIVE != session_status()) {
ini_set('session.auto_start', 0);
$isDoStart = true;
}
if (isset($config['prefix'])) {
self::$prefix = $config['prefix'];
}
if (isset($config['var_session_id']) && isset($_REQUEST[$config['var_session_id']])) {
session_id($_REQUEST[$config['var_session_id']]);
} elseif (isset($config['id']) && !empty($config['id'])) {
session_id($config['id']);
}
if (isset($config['name'])) {
session_name($config['name']);
}
if (isset($config['path'])) {
session_save_path($config['path']);
}
if (isset($config['domain'])) {
ini_set('session.cookie_domain', $config['domain']);
}
if (isset($config['expire'])) {
ini_set('session.gc_maxlifetime', $config['expire']);
ini_set('session.cookie_lifetime', $config['expire']);
}
if (isset($config['use_cookies'])) {
ini_set('session.use_cookies', $config['use_cookies'] ? 1 : 0);
}
if (isset($config['cache_limiter'])) {
session_cache_limiter($config['cache_limiter']);
}
if (isset($config['cache_expire'])) {
session_cache_expire($config['cache_expire']);
}
if (!empty($config['type'])) {
// 读取session驱动
$class = (!empty($config['namespace']) ? $config['namespace'] : '\\Supe\\Core\\Session\\Driver\\') . ucwords($config['type']);
// 检查驱动类
if (!class_exists($class) || !session_set_save_handler(new $class($config))) {
throw new \Supe\Exception\Exception('error session handler', 11700);
}
}
if ($isDoStart) {
session_start();
self::$active = true;
}
}
public static function alarm($config = array())
{
$type = isset($config['type']) ? $config['type'] : 'Email';
$class = (!empty($config['namespace']) ? $config['namespace'] : '\\Supe\\Core\\Log\\Alarm\\') . ucwords($type);
unset($config['type']);
self::$alarm = new $class($config['alarm']);
// 记录初始化信息
APP_DEBUG && Log::record('[ CACHE ] ALARM ' . $type . ': ' . var_export($config, true), 'info');
}
/**
* 数据库初始化 并取得数据库类实例
*
* @static
* @access public
*
* @param mixed $config 连接配置
*
* @return Object 返回数据库驱动类
* @throws \Exception
*/
public static function connect($config = '')
{
$md5 = md5(serialize($config));
if (!isset(self::$instances[$md5])) {
// 解析连接参数 支持数组和字符串
$options = self::parseConfig($config);
if (empty($options['type'])) {
throw new \Exception('Db type error');
}
$class = (!empty($options['namespace']) ? $options['namespace'] : '\\Supe\\Database\\Driver\\') . ucwords($options['type']);
self::$instances[$md5] = new $class($options);
// 记录初始化信息
APP_DEBUG && Log::record('[ DB ] INIT ' . $options['type'] . ':' . var_export($options, true), 'info');
}
self::$instance = self::$instances[$md5];
return self::$instance;
}
/**
* SQL性能分析
*
* @access protected
*
* @param string $sql
*
* @return array
*/
protected function getExplain($sql)
{
$pdo = $this->linkID->query("EXPLAIN " . $sql);
$result = $pdo->fetch(\PDO::FETCH_ASSOC);
$result = array_change_key_case($result);
if (isset($result['extra'])) {
if (strpos($result['extra'], 'filesort') || strpos($result['extra'], 'temporary')) {
Log::record('SQL:' . $this->queryStr . '[' . $result['extra'] . ']', 'warn');
}
}
return $result;
}
/**
* 数据库调试 记录当前SQL
*
* @access protected
*
* @param boolean $start 调试开始标记 true 开始 false 结束
*/
protected function debug($start)
{
if (!empty($this->config['debug'])) {
// 开启数据库调试模式
if ($start) {
Debug::remark('queryStartTime', 'time');
} else {
$this->modelSql[$this->model] = $this->queryStr;
// 记录操作结束时间
Debug::remark('queryEndTime', 'time');
$log = $this->queryStr . ' [ RunTime:' . Debug::getRangeTime('queryStartTime', 'queryEndTime') . 's ]';
// SQL性能分析
if (0 === stripos(trim($this->queryStr), 'select')) {
$result = $this->getExplain($this->queryStr);
Log::record('[ EXPLAIN : ' . var_export($result, true) . ' ]', 'sql');
}
Log::record('[ SQL ] ' . $log, 'sql');
}
}
}
/**
* Shutdown Handler
*
* @return bool true-禁止往下传播已处理过的异常; false-未处理的异常继续传播
*/
public static function appShutdown()
{
// 写入日志
Log::save();
if ($error = error_get_last()) {
// 将错误信息托管至 Supe\Exception\ErrorException
$exception = new ErrorException($error['type'], $error['message'], $error['file'], $error['line']);
/**
* Shutdown handler 中的异常将不被往下传播
* 所以，这里我们必须手动传播而不能像 Error handler 中那样 throw
*/
self::appException($exception);
// 禁止往下传播已处理过的异常
return true;
}
return false;
}