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<?php |
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namespace Arrilot\DotEnv; |
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use Arrilot\DotEnv\Exceptions\MissingVariableException; |
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class DotEnv |
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{ |
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/** |
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* Key-value storage. |
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* |
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* @var array |
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*/ |
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protected static $variables = []; |
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/** |
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* Required variables. |
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* |
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* @var array |
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*/ |
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protected static $required = []; |
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/** |
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* Were variables loaded? |
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* |
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* @var bool |
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*/ |
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protected static $isLoaded = false; |
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/** |
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* Load .env.php file or array. |
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* |
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* @param string|array $source |
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* |
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* @return void |
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*/ |
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public static function load($source) |
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{ |
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self::$variables = is_array($source) ? $source : require $source; |
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self::$isLoaded = true; |
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self::checkRequiredVariables(); |
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} |
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/** |
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* Get env variables. |
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* |
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* @return array |
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*/ |
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public static function all() |
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{ |
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return self::$variables; |
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} |
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/** |
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* Get env variable. |
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* |
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* @param string $key |
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* @param mixed $default |
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* |
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* @return mixed |
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*/ |
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public static function get($key, $default = null) |
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{ |
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return isset(self::$variables[$key]) ? self::$variables[$key] : $default; |
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} |
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/** |
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* Set env variable. |
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* |
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* @param string|array $keys |
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* @param mixed $value |
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* |
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* @return void |
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*/ |
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public static function set($keys, $value = null) |
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{ |
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if (is_array($keys)) { |
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self::$variables = array_merge(self::$variables, $keys); |
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} else { |
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self::$variables[$keys] = $value; |
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} |
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} |
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/** |
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* Set required variables. |
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* |
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* @param array $variables |
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*/ |
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public static function setRequired(array $variables) |
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{ |
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self::$required = $variables; |
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if (self::$isLoaded) { |
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self::checkRequiredVariables(); |
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} |
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} |
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/** |
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* Delete all variables. |
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* |
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* @return void |
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*/ |
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public static function flush() |
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{ |
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self::$variables = []; |
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self::$isLoaded = false; |
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} |
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/** |
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* Throw exception if any of required variables was not loaded. |
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* |
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* @throws MissingVariableException |
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* |
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* @return void |
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*/ |
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protected static function checkRequiredVariables() |
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{ |
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foreach (self::$required as $key) { |
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if (!isset(self::$variables[$key])) { |
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throw new MissingVariableException(".env variable '{$key}' is missing"); |
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} |
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} |
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} |
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} |
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arrilot /
dotenv-php
