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<?php |
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/* |
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MIT License |
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Copyright (c) 2010 - 2018 Peter Petermann |
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Permission is hereby granted, free of charge, to any person |
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obtaining a copy of this software and associated documentation |
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files (the "Software"), to deal in the Software without |
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restriction, including without limitation the rights to use, |
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copy, modify, merge, publish, distribute, sublicense, and/or sell |
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copies of the Software, and to permit persons to whom the |
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Software is furnished to do so, subject to the following |
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conditions: |
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The above copyright notice and this permission notice shall be |
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included in all copies or substantial portions of the Software. |
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THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, |
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EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES |
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OF MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND |
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NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT |
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HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, |
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WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING |
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FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR |
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OTHER DEALINGS IN THE SOFTWARE. |
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*/ |
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namespace King23\Settings; |
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class JsonSettings implements SettingsInterface |
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{ |
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private $data = []; |
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/** |
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* @param string $filename |
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* @return JsonSettings |
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*/ |
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public static function fromFilename(string $filename): JsonSettings |
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{ |
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return static::fromJsonString(file_get_contents($filename)); |
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} |
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/** |
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* @param string $string |
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* @return JsonSettings |
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*/ |
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public static function fromJsonString(string $string): JsonSettings |
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{ |
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// @todo remove once minimum is php 7.3 |
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if (!defined("JSON_THROW_ON_ERROR")) { |
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define("JSON_THROW_ON_ERROR", 4194304); |
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} |
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$settings = new JsonSettings(); |
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$settings->data = (array) json_decode($string, true, 512, JSON_THROW_ON_ERROR); |
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return $settings; |
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} |
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/** |
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* @param string $key |
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* @param mixed $default |
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* @return array|int|mixed|null|string |
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*/ |
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public function get($key, $default = null) |
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{ |
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$keys = explode(".", $key); |
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$result = $this->getFromSubKeys($keys, $this->data); |
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if (is_null($result)) { |
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return $default; |
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} |
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return $result; |
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} |
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/** |
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* @param array $keys |
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* @param array $data |
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* @return null|string|int|array |
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*/ |
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private function getFromSubKeys(array $keys, array $data) |
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{ |
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$key = array_shift($keys); |
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// key doesn't exist, so we can return null |
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if (!array_key_exists($key, $data)) { |
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return null; |
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} |
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// key is the last key, so we can return the contents |
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if (count($keys) == 0) { |
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return $data[$key]; |
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} |
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// more subkeys, so lets dive in |
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return $this->getFromSubKeys($keys, $data[$key]); |
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} |
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} |
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