113 lines
2.5 KiB
PHP
113 lines
2.5 KiB
PHP
<?php namespace System;
|
|
|
|
class Config {
|
|
|
|
/**
|
|
* All of the loaded configuration items.
|
|
*
|
|
* @var array
|
|
*/
|
|
private static $items = array();
|
|
|
|
/**
|
|
* Get a configuration item.
|
|
*
|
|
* @param string $key
|
|
* @return mixed
|
|
*/
|
|
public static function get($key)
|
|
{
|
|
|
|
// -----------------------------------------------------
|
|
// We are are just pulling in a file, skip loading a key
|
|
// -----------------------------------------------------
|
|
if(strpos($key, '.') == 0)
|
|
{
|
|
static::load($key);
|
|
|
|
return static::$items[$key];
|
|
}
|
|
|
|
list($file, $key) = static::parse($key);
|
|
|
|
static::load($file);
|
|
|
|
if (array_key_exists($key, static::$items[$file]))
|
|
{
|
|
return static::$items[$file][$key];
|
|
}
|
|
|
|
throw new \Exception("Configuration item [$key] is not defined.");
|
|
}
|
|
|
|
/**
|
|
* Set a configuration item.
|
|
*
|
|
* @param string $key
|
|
* @param mixed $value
|
|
* @return void
|
|
*/
|
|
public static function set($key, $value)
|
|
{
|
|
list($file, $key) = static::parse($key);
|
|
|
|
static::load($file);
|
|
|
|
static::$items[$file][$key] = $value;
|
|
}
|
|
|
|
/**
|
|
* Parse a configuration key.
|
|
*
|
|
* @param string $key
|
|
* @return array
|
|
*/
|
|
private static function parse($key)
|
|
{
|
|
// -----------------------------------------------------
|
|
// The left side of the dot is the file name, while
|
|
// the right side of the dot is the item within that
|
|
// file being requested.
|
|
//
|
|
// This syntax allows for the easy retrieval and setting
|
|
// of configuration items.
|
|
// -----------------------------------------------------
|
|
$segments = explode('.', $key);
|
|
|
|
if (count($segments) < 2)
|
|
{
|
|
throw new \Exception("Invalid configuration key [$key].");
|
|
}
|
|
|
|
return array($segments[0], implode('.', array_slice($segments, 1)));
|
|
}
|
|
|
|
/**
|
|
* Load all of the configuration items.
|
|
*
|
|
* @param string $file
|
|
* @return void
|
|
*/
|
|
public static function load($file)
|
|
{
|
|
// -----------------------------------------------------
|
|
// If we have already loaded the file, bail out.
|
|
// -----------------------------------------------------
|
|
if (array_key_exists($file, static::$items))
|
|
{
|
|
return;
|
|
}
|
|
|
|
if ( ! file_exists($path = APP_PATH.'config/'.$file.EXT))
|
|
{
|
|
throw new \Exception("Configuration file [$file] does not exist.");
|
|
}
|
|
|
|
// -----------------------------------------------------
|
|
// Load the configuration array into the array of items.
|
|
// The items array is keyed by filename.
|
|
// -----------------------------------------------------
|
|
static::$items[$file] = require $path;
|
|
}
|
|
|
|
} |