标签：laravel
<?php
namespace Illuminate\Config;
use ArrayAccess;
use Illuminate\Support\Arr;
use Illuminate\Contracts\Config\Repository as ConfigContract;
// a knowledge library ,that is a namespace
class Repository implements ArrayAccess, ConfigContract
{
/**
* All of the configuration items.
*
* @var array
*/
protected $items = [];// all of the configuration items.
/**
* Create a new configuration repository.
*
* @param array $items
* @return void
*/
public function __construct(array $items = [])
{
$this->items = $items;
}// a construct function about the repository.
// create a new configuration repository
/**
* Determine if the given configuration value exists.
*
* @param string $key
* @return bool
*/
public function has($key)
{
return Arr::has($this->items, $key);
}// use a static method
/**
* Get the specified configuration value.
*
* @param string $key
* @param mixed $default
* @return mixed
*/
public function get($key, $default = null)
{
return Arr::get($this->items, $key, $default);
}// Get the specified configuration value.
/**
* Set a given configuration value.
*
* @param array|string $key
* @param mixed $value
* @return void
*/
public function set($key, $value = null)
{
if (is_array($key)) {// more get many get
foreach ($key as $innerKey => $innerValue) {// set the keys
Arr::set($this->items, $innerKey, $innerValue);
}
} else {// single set
Arr::set($this->items, $key, $value);
}
}// Set a given configuration value
/**
* Prepend a value onto an array configuration value.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function prepend($key, $value)// Prepend a value onto an array configuration value.
{
$array = $this->get($key);// get way to get value by key
array_unshift($array, $value);// insert a value to the array by key in th first place
$this->set($key, $array);// set key
}
/**
* 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);
}// push a value onto an array configuration value.
// insert into the last key
/**
* Get all of the configuration items for the application.
*
* @return array
*/
public function all()
{
return $this->items;
}// get all the items[] array
/**
* Determine if the given configuration option exists.
*
* @param string $key
* @return bool
*/
public function offsetExists($key)
{
return $this->has($key);
}// check has the key
/**
* Get a configuration option.
*
* @param string $key
* @return mixed
*/
public function offsetGet($key)
{
return $this->get($key);
}// get a value by key
/**
* Set a configuration option.
*
* @param string $key
* @param mixed $value
* @return void
*/
public function offsetSet($key, $value)
{
$this->set($key, $value);
}// set/ add/ a option
/**
* Unset a configuration option.
*
* @param string $key
* @return void
*/
public function offsetUnset($key)
{
$this->set($key, null);
}// delete a item[option]
}本文出自 “专注php” 博客，请务必保留此出处http://jingshanls.blog.51cto.com/3357095/1761593
标签：laravel
原文地址：http://jingshanls.blog.51cto.com/3357095/1761593
