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                <?php  | 
            
                            
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                class URLDecode  | 
            
                            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static $array = array();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function init()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$host = $_SERVER['HTTP_HOST'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$uri = $_SERVER['REQUEST_URI'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::form_url_array($host, $uri);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                	static private function form_url_array($host, $uri)  | 
            
                            
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                	{ | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$uri = substr($uri, 1);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if(strpos($uri, '?'))  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$uri = substr($uri, 0, strpos($uri, '?'));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$uri_array = explode('/', $uri); | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if(!Loader::isLive())  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$host = substr($host, strpos($host, '.') + 1);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		self::$array['host'] = $host;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    if (  | 
            
            
                                                                        
                            
            
                                    
            
            
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                      $host == 'www.waterfallsofthekeweenaw.com' ||  | 
            
            
                                                                        
                            
            
                                    
            
            
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                      $host == 'waterfallsofthekeweenaw.com'  | 
            
            
                                                                        
                            
            
                                    
            
            
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                    ) { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			self::$array['site'] = 'waterfalls';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		} else { | 
            
            
                                                                        
                            
            
                                    
            
            
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                			self::$array['site'] = substr($host, 0, strpos($host, '.'));  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		self::$array['base'] = 'http://' . (!Loader::isLive() ? 'dev.' : '') . $host . '/';  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		self::$array['uri'] = '/' . implode('/', $uri_array); | 
            
            
                                                                        
                            
            
                                    
            
            
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                		if(end($uri_array) == '')  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			$uri_array = array_slice($uri_array, 0, count($uri_array) - 1);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		self::$array['pieces'] = (array) $uri_array;  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getSite()  | 
            
                            
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                		return self::$array['site'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getHost()  | 
            
                            
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                		return self::$array['host'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getBase()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return self::$array['base'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getURI()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return self::$array['uri'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getExtension()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$file = self::getPiece(-1);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if(substr($file, -1) == '/')  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return false;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return substr($file, strrpos($file, '.') + 1);;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	static function getPiece($piece = null)  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if(!$piece)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return self::$array['pieces'];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if($piece == -1)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return end(self::$array['pieces']);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$piece = $piece - 1;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if(array_key_exists($piece, self::$array['pieces']))  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			return self::$array['pieces'][$piece];  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                }  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                URLDecode::init();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                ?>  | 
            
                            
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The PSR-1: Basic Coding Standard recommends that a file should either introduce new symbols, that is classes, functions, constants or similar, or have side effects. Side effects are anything that executes logic, like for example printing output, changing ini settings or writing to a file.
The idea behind this recommendation is that merely auto-loading a class should not change the state of an application. It also promotes a cleaner style of programming and makes your code less prone to errors, because the logic is not spread out all over the place.
To learn more about the PSR-1, please see the PHP-FIG site on the PSR-1.