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- <?php
- namespace Typecho;
- /**
- * 配置管理类
- *
- * @category typecho
- * @package Config
- * @copyright Copyright (c) 2008 Typecho team (http://www.typecho.org)
- * @license GNU General Public License 2.0
- */
- class Config implements \Iterator, \ArrayAccess
- {
- /**
- * 当前配置
- *
- * @access private
- * @var array
- */
- private $currentConfig = [];
- /**
- * 实例化一个当前配置
- *
- * @access public
- * @param array|string|null $config 配置列表
- */
- public function __construct($config = [])
- {
- /** 初始化参数 */
- $this->setDefault($config);
- }
- /**
- * 工厂模式实例化一个当前配置
- *
- * @access public
- *
- * @param array|string|null $config 配置列表
- *
- * @return Config
- */
- public static function factory($config = []): Config
- {
- return new self($config);
- }
- /**
- * 设置默认的配置
- *
- * @access public
- *
- * @param mixed $config 配置信息
- * @param boolean $replace 是否替换已经存在的信息
- *
- * @return void
- */
- public function setDefault($config, bool $replace = false)
- {
- if (empty($config)) {
- return;
- }
- /** 初始化参数 */
- if (is_string($config)) {
- parse_str($config, $params);
- } else {
- $params = $config;
- }
- /** 设置默认参数 */
- foreach ($params as $name => $value) {
- if ($replace || !array_key_exists($name, $this->currentConfig)) {
- $this->currentConfig[$name] = $value;
- }
- }
- }
- /**
- * @return bool
- */
- public function isEmpty(): bool
- {
- return empty($this->currentConfig);
- }
- /**
- * 重设指针
- *
- * @access public
- * @return void
- */
- public function rewind(): void
- {
- reset($this->currentConfig);
- }
- /**
- * 返回当前值
- *
- * @access public
- * @return mixed
- */
- #[\ReturnTypeWillChange]
- public function current()
- {
- return current($this->currentConfig);
- }
- /**
- * 指针后移一位
- *
- * @access public
- * @return void
- */
- public function next(): void
- {
- next($this->currentConfig);
- }
- /**
- * 获取当前指针
- *
- * @access public
- * @return mixed
- */
- #[\ReturnTypeWillChange]
- public function key()
- {
- return key($this->currentConfig);
- }
- /**
- * 验证当前值是否到达最后
- *
- * @access public
- * @return boolean
- */
- public function valid(): bool
- {
- return false !== $this->current();
- }
- /**
- * 魔术函数获取一个配置值
- *
- * @access public
- * @param string $name 配置名称
- * @return mixed
- */
- public function __get(string $name)
- {
- return $this->offsetGet($name);
- }
- /**
- * 魔术函数设置一个配置值
- *
- * @access public
- * @param string $name 配置名称
- * @param mixed $value 配置值
- * @return void
- */
- public function __set(string $name, $value)
- {
- $this->offsetSet($name, $value);
- }
- /**
- * 直接输出默认配置值
- *
- * @access public
- * @param string $name 配置名称
- * @param array|null $args 参数
- * @return void
- */
- public function __call(string $name, ?array $args)
- {
- echo $this->currentConfig[$name];
- }
- /**
- * 判断当前配置值是否存在
- *
- * @access public
- * @param string $name 配置名称
- * @return boolean
- */
- public function __isSet(string $name): bool
- {
- return $this->offsetExists($name);
- }
- /**
- * 魔术方法,打印当前配置数组
- *
- * @access public
- * @return string
- */
- public function __toString(): string
- {
- return serialize($this->currentConfig);
- }
- /**
- * @return array
- */
- public function toArray(): array
- {
- return $this->currentConfig;
- }
- /**
- * @param mixed $offset
- * @return bool
- */
- public function offsetExists($offset): bool
- {
- return isset($this->currentConfig[$offset]);
- }
- /**
- * @param mixed $offset
- * @return mixed
- */
- #[\ReturnTypeWillChange]
- public function offsetGet($offset)
- {
- return $this->currentConfig[$offset] ?? null;
- }
- /**
- * @param mixed $offset
- * @param mixed $value
- */
- public function offsetSet($offset, $value): void
- {
- $this->currentConfig[$offset] = $value;
- }
- /**
- * @param mixed $offset
- */
- public function offsetUnset($offset): void
- {
- unset($this->currentConfig[$offset]);
- }
- }
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