108 lines
2.5 KiB
PHP
Executable file
108 lines
2.5 KiB
PHP
Executable file
<?php
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/**
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* Registry class
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*
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* provides a global key value registry
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*
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* @copyright 2013 Steffen Vogel
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* @license http://www.gnu.org/licenses/gpl.txt GNU Public License
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* @author Steffen Vogel <post@steffenvogel.de>
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* @link http://www.steffenvogel.de
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*/
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/*
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* This file is part of sddns
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*
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* sddns is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* any later version.
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*
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* sddns is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with sddns. If not, see <http://www.gnu.org/licenses/>.
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*/
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/**
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* Registry class to pass global variables between classes.
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*/
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abstract class Registry {
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/**
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* Object registry provides storage for shared objects
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*
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* @var array
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*/
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private static $registry = array();
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/**
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* Adds a new variable to the Registry.
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*
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* @param string $key Name of the variable
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* @param mixed $value Value of the variable
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* @throws Exception
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* @return bool
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*/
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public static function set($key, $value) {
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if (!isset(self::$registry[$key])) {
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self::$registry[$key] = $value;
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return true;
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} else {
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throw new Exception('Unable to set variable `' . $key . '`. It was already set.');
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}
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}
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/**
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* Returns the value of the specified $key in the Registry.
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*
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* @param string $key Name of the variable
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* @return mixed Value of the specified $key
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*/
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public static function get($key)
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{
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if (isset(self::$registry[$key])) {
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return self::$registry[$key];
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}
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return null;
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}
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/**
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* Returns the whole Registry as an array.
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*
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* @return array Whole Registry
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*/
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public static function getAll()
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{
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return self::$registry;
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}
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/**
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* Removes a variable from the Registry.
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*
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* @param string $key Name of the variable
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* @return bool
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*/
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public static function remove($key)
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{
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if (isset(self::$registry[$key])) {
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unset(self::$registry[$key]);
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return true;
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}
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return false;
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}
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/**
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* Removes all variables from the Registry.
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*
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* @return void
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*/
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public static function removeAll()
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{
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self::$registry = array();
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return;
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}
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}
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?>
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