Learning-laravel-source-code

Illuminate/Config/Repository.php

<?php namespace Illuminate\Config;

use ArrayAccess;
use Illuminate\Contracts\Config\Repository as ConfigContract;

class Repository implements ArrayAccess, ConfigContract {

    

    /**
     * All of the configuration items.
     *
     * @var array
     */
    protected $items = [];

    

    /**
     * Create a new configuration repository.
     * 创建一个新的配置仓库。
     *
     * @param  array  $items
     * @return void
     */
    public function __construct(array $items = array())
    {
        $this->items = $items;
    }

    

    /**
     * Determine if the given configuration value exists.
     *
     * @param  string  $key
     * @return bool
     */
    public function has($key)
    {
        return array_has($this->items, $key);
    }

    

    /**
     * Get the specified configuration value.
     *
     * @param  string  $key
     * @param  mixed   $default
     * @return mixed
     */
    public function get($key, $default = null)
    {
        return array_get($this->items, $key, $default);
    }

    

    /**
     * Set a given configuration value.
     *
     * @param  array|string  $key
     * @param  mixed   $value
     * @return void
     */
    public function set($key, $value = null)
    {
        if (is_array($key))
        {
            foreach ($key as $innerKey => $innerValue)
            {
                array_set($this->items, $innerKey, $innerValue);
            }
        }
        else
        {
            array_set($this->items, $key, $value);
        }
    }

    

    /**
     * Prepend a value onto an array configuration value.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return void
     */
    public function prepend($key, $value)
    {
        $array = $this->get($key);

        array_unshift($array, $value);

        $this->set($key, $array);
    }

    

    /**
     * Push a value onto an array configuration value.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return void
     */
    public function push($key, $value)
    {
        $array = $this->get($key);

        $array[] = $value;

        $this->set($key, $array);
    }

    

    /**
     * Get all of the configuration items for the application.
     *
     * @return array
     */
    public function all()
    {
        return $this->items;
    }

    

    /**
     * Determine if the given configuration option exists.
     *
     * @param  string  $key
     * @return bool
     */
    public function offsetExists($key)
    {
        return $this->has($key);
    }

    

    /**
     * Get a configuration option.
     *
     * @param  string  $key
     * @return mixed
     */
    public function offsetGet($key)
    {
        return $this->get($key);
    }

    

    /**
     * Set a configuration option.
     *
     * @param  string  $key
     * @param  mixed  $value
     * @return void
     */
    public function offsetSet($key, $value)
    {
        $this->set($key, $value);
    }

    

    /**
     * Unset a configuration option.
     *
     * @param  string  $key
     * @return void
     */
    public function offsetUnset($key)
    {
        $this->set($key, null);
    }

}