~~~ <?php /** * Created by PhpStorm. * User: 小灰灰 * Date: 2022-04-26 * Time: 21:53:40 * Info: */ namespace support\lib; Env::load(); class Env { /** * 环境变量数据 * @var array */ protected static $data = []; /** * 读取环境变量定义文件 * @access public * * @param string $file 环境变量定义文件 * * @return void */ public static function load($file = '.env') { if ( ! is_file($file)) { return; } $env = parse_ini_file($file, true); self::set($env); } /** * 获取环境变量值 * @access public * * @param string $name 环境变量名 * @param mixed $default 默认值 */ public static function get($name = null, $default = null) { if ($name == null) { return self::$data; } $name = strtoupper($name); $name = strtoupper(str_replace('.', '_', $name)); if (isset(self::$data[$name])) { return self::$data[$name]; } return $default; } /** * 设置环境变量值 * @access public * * @param string|array $env 环境变量 * @param mixed $value 值 * * @return void */ public static function set($env, $value = null) { if (is_array($env)) { $env = array_change_key_case($env, CASE_UPPER); foreach ($env as $key => $val) { if (is_array($val)) { foreach ($val as $k => $v) { self::$data[$key.'_'.strtoupper($k)] = $v; } } else { self::$data[$key] = $val; } } } else { $name = strtoupper(str_replace('.', '_', $env)); self::$data[$name] = $value; } } } ~~~ 使用方法： ~~~ use support\lib\Env; Env::get('SQL.DB_DEFAULT', 'mysql') ~~~ .env文件： ~~~ [SQL] DB_DEFAULT = mysql HOSTNAME = 127.0.0.1 DATABASE = database DBNAME = root DBPASS = 123456 HOSTPOINT = 3306 PREFIX = cmf_ ~~~