php 5.5-降级类php 5.6到5.5

Question

我创建了一个类来堆叠对象层和闭包，但我的服务器还没有在php5.6上运行。我想知道如何转换...$parameters，因为我无法通过用call_user_func_array()替换所有内容来修复它，然后buildCoreClosure()方法会抛出错误，例如，因为闭包不是数组。。。

class Stack
{
    /**
     * Method to call on the decoracted class.
     *
     * @var string
     */
    protected $method;
    /**
     * Container.
     */
    protected $container;
    /**
     * Middleware layers.
     *
     * @var array
     */
    protected $layers = [];
    public function __construct(Container $container = null, $method = null)
    {
        $this->container = $container ?: new Container;
        $this->method = $method ?: 'handle';
    }
    public function addLayer($class, $inner = true)
    {
        return $inner ? array_unshift($this->layers, $class) : array_push($this->layers, $class);
    }
    public function addInnerLayer($class)
    {
        return $this->addLayer($class);
    }
    public function addOuterLayer($class)
    {
        return $this->addLayer($class, false);
    }
    protected function buildCoreClosure($object)
    {
        return function(...$arguments) use ($object)
        {
            $callable = $object instanceof Closure ? $object : [$object, $this->method];
            return $callable(...$arguments);
        };
    }
    protected function buildLayerClosure($layer, Closure $next)
    {
        return function(...$arguments) use ($layer, $next)
        {
            return $layer->execute(...array_merge($arguments, [$next]));
        };
    }

    public function peel($object, array $parameters = [])
    {
        $next = $this->buildCoreClosure($object);
        foreach($this->layers as $layer)
        {
            $layer = $this->container->get($layer);
            $next = $this->buildLayerClosure($layer, $next);
        }
        return $next(...$parameters);
    }
}

Answer 1

通过删除

...$arguments

在每个函数的参数列表中，并将其替换为以下(函数内部的早期(

$arguments = func_get_args();

您可以获得相同的参数值。即使未在函数的参数列表中定义，参数仍将传递给func_get_args((。

Answer 2

修复方法是用func_get_args() 替换...$arguments