15 行代码实现单例模式依赖注入容器加静态代理

<?php
namespace app;
static $container = [];
function app($class) {
    global $container;
    if (empty($container[$class])) $container[$class] = new $class();
    return $container[$class];
}
abstract class Facade {
    abstract public static function getFacadeClass(): string;
    public static function __callStatic($name, $arguments) {
        $obj = app(static::getFacadeClass());
        return $obj->$name(...$arguments);
    }
}

本作品采用《CC 协议》，转载必须注明作者和本文链接