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<?php |
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/** |
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* Konfig. |
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* |
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* Yet another simple configuration loader library. |
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* |
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* PHP version 5 |
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* |
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* @category Library |
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* @package Konfig |
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* @author Xeriab Nabil (aka KodeBurner) <[email protected]> |
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* @license https://raw.github.com/xeriab/konfig/master/LICENSE MIT |
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* @link https://xeriab.github.io/projects/konfig |
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*/ |
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namespace Exen\Konfig; |
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use ArrayAccess; |
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use Iterator; |
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/** |
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* Main Konfig abstract class. |
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* |
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* @category Main |
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* @package Konfig |
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* @author Xeriab Nabil (aka KodeBurner) <[email protected]> |
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* @license https://raw.github.com/xeriab/konfig/master/LICENSE MIT |
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* @link https://xeriab.github.io/projects/konfig |
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* |
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* @implements ArrayAccess |
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* @implements Iterator |
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* @implements KonfigInterface |
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*/ |
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abstract class AbstractKonfig implements ArrayAccess, Iterator, KonfigInterface |
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{ |
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/** |
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* Stores the configuration items. |
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* |
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* @var array Data |
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* |
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* @since 0.1.0 |
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*/ |
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protected $data = []; |
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/** |
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* Caches the configuration data. |
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* |
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* @var array Cache |
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* |
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* @since 0.1.0 |
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*/ |
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protected $cache = []; |
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/** |
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* Constructor method and sets default options, if any. |
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* |
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* @param array $input Input |
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*/ |
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public function __construct($input) |
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{ |
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$this->data = Arr::mergeAssoc($this->getDefaults(), $input); |
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//$this->data = array_merge($this->getDefaults(), $input); |
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} |
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/** |
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* Override this method in your own subclass to provide an array of default |
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* options and values. |
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* |
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* @return array |
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* |
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* @since 0.1.0 |
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*/ |
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protected function getDefaults() |
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{ |
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return []; |
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} |
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// KONFIGINTERFACE METHODS |
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/** |
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* {@inheritdoc} |
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* |
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* @return array Gets configuration items array |
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*/ |
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public function all() |
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{ |
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return $this->data; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $key Configuration item key name |
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* |
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* @return bool Returns true if the configuration item key exists |
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* |
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* @since 0.1.0 |
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* @codeCoverageIgnore |
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*/ |
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public function has($key) |
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{ |
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// Check if already cached |
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if (Arr::get($this->cache, $key) || isset($this->cache[$key])) { |
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return true; |
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} |
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$chunks = explode('.', $key); |
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$root = $this->data; |
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// Nested case |
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foreach ($chunks as $chunk) { |
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if (array_key_exists($chunk, $root)) { |
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$root = $root[$chunk]; |
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continue; |
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} else { |
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return false; |
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} |
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} |
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// Set cache for the given key |
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$this->cache[$key] = $root; |
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return true; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $key Configuration item key name |
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* @param string|array|null $default Default configuration |
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* |
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* @return string|array|null Default configuration |
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*/ |
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public function get($key, $default = null) |
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{ |
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if ($this->has($key)) { |
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// return $this->cache[$key]; |
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return Arr::get($this->data, $key); |
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} |
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return $default; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $key Configuration item key name |
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* @param mixed $value Configuration item value |
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* |
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* @return void Void |
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*/ |
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public function set($key, $value) |
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{ |
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$chunks = explode('.', $key); |
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$root = &$this->data; |
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$cacheKey = ''; |
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// Look for the key, creating nested keys if needed |
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while ($part = array_shift($chunks)) { |
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if ($cacheKey != '') { |
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$cacheKey .= '.'; |
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} |
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$cacheKey .= $part; |
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if (!isset($root[$part]) && count($chunks)) { |
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$root[$part] = []; |
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} |
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$root = &$root[$part]; |
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// Unset all old nested cache |
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if (isset($this->cache[$cacheKey])) { |
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unset($this->cache[$cacheKey]); |
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} |
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// Unset all old nested cache in case of array |
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if (count($chunks) == 0) { |
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foreach ($this->cache as $cacheLocalKey => $cacheValue) { |
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if (substr($cacheLocalKey, 0, strlen($cacheKey)) === $cacheKey) { |
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unset($this->cache[$cacheLocalKey]); |
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} |
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} |
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} |
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} |
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// Assign value at target node |
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$this->cache[$key] = $root = $value; |
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} |
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/** |
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* {@inheritdoc} |
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* |
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* @param string $key Configuration item key name |
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* |
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* @return bool |
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* @codeCoverageIgnore |
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*/ |
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public function delete($key) |
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{ |
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if (isset($this->cache[$key])) { |
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// unset($this->cache[$key]); |
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Arr::delete($this->cache, $key); |
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} |
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return Arr::delete($this->data, $key); |
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} |
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// ARRAYACCESS METHODS |
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/** |
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* Gets a value using the offset as a key. |
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* |
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* @param string $offset Configuration item key name |
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* |
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* @return mixed Configuration item |
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* |
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* @since 0.1.0 |
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*/ |
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public function offsetGet($offset) |
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{ |
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return $this->get($offset); |
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} |
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/** |
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* Checks if a key exists. |
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* |
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* @param string $offset Configuration item key name |
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* |
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* @return bool |
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* |
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* @since 0.1.0 |
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*/ |
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public function offsetExists($offset) |
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{ |
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return $this->has($offset); |
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} |
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/** |
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* Sets a value using the offset as a key. |
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* |
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* @param string $offset Configuration item key name |
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* @param mixed $value Configuration item value |
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* |
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* @return void Void |
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* @since 0.1.0 |
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*/ |
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public function offsetSet($offset, $value) |
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{ |
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$this->set($offset, $value); |
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} |
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/** |
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* Deletes a key and its value. |
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* |
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* @param string $offset Configuration item key name |
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* |
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* @return void Void |
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* @since 0.1.0 |
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*/ |
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public function offsetUnset($offset) |
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{ |
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$this->set($offset, null); |
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} |
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// ITERATOR METHODS |
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/** |
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* Tests whether the iterator's current index is valid. |
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* |
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* @return bool True if the current index is valid; false otherwise |
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* |
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* @since 0.1.0 |
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*/ |
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public function valid() |
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{ |
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return is_array($this->data) ? key($this->data) !== null : false; |
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} |
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/** |
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* Returns the data array index referenced by its internal cursor. |
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* |
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* @return mixed The index referenced by the data array's internal cursor. |
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* If the array is empty or undefined or there is no element at the cursor, |
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* the function returns null. |
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* |
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* @since 0.1.0 |
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*/ |
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public function key() |
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{ |
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return is_array($this->data) ? key($this->data) : null; |
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} |
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/** |
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* Returns the data array element referenced by its internal cursor. |
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* |
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* @return mixed The element referenced by the data array's internal cursor. |
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* If the array is empty or there is no element at the cursor, |
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* the function returns false. If the array is undefined, the function |
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* returns null |
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* |
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* @since 0.1.0 |
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*/ |
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public function current() |
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{ |
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return is_array($this->data) ? current($this->data) : null; |
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} |
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/** |
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* Moves the data array's internal cursor forward one element. |
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* |
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* @return mixed The element referenced by the data array's internal cursor |
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* after the move is completed. If there are no more elements in the |
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* array after the move, the function returns false. If the data array |
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* is undefined, the function returns null. |
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* |
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* @since 0.1.0 |
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*/ |
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public function next() |
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{ |
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return is_array($this->data) ? next($this->data) : null; |
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} |
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/** |
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* Moves the data array's internal cursor to the first element. |
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* |
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* @return mixed The element referenced by the data array's internal cursor |
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* after the move is completed. If the data array is empty, the function |
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* returns false. If the data array is undefined, the function returns null. |
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* |
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* @since 0.1.0 |
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*/ |
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public function rewind() |
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{ |
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return is_array($this->data) ? reset($this->data) : null; |
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} |
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} |
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// END OF ./src/AbstractKonfig.php FILE |
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