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                <?  | 
            
                            
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                final class Header  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                { | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    5
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                    6
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                	private static $CACHE_EXPIRATION = 315360000;  | 
            
                            
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                    7
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                	private static $CACHE_MODIFICATION = 604800;  | 
            
                            
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                	private static $SITEMAP_EXPIRATION = 604800;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static $RSS_EXPIRATION = 604800;  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    11
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                View Code Duplication | 
                	public static function sendJSON()  | 
            
                            
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                    12
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'HTTP/1.1 200 OK',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Cache-Control: no-cache',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Type: application/json',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() - 1),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                View Code Duplication | 
                	public static function sendSitemap()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'HTTP/1.1 200 OK',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Cache-Control: max-age=' . self::$SITEMAP_EXPIRATION . ', must-revalidate',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Type: text/xml',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() + self::$SITEMAP_EXPIRATION),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                View Code Duplication | 
                	public static function sendRSS()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'HTTP/1.1 200 OK',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Cache-Control: max-age=' . self::$RSS_EXPIRATION . ', must-revalidate',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Type: application/rss+xml',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() + self::$RSS_EXPIRATION),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                                                                
            
                                    
            
            
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                    50
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                View Code Duplication | 
                	public static function sendHTML()  | 
            
                            
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                	{ | 
            
            
                                                                        
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'HTTP/1.1 200 OK',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'Cache-Control: no-cache',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'Content-Type: text/html',  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() - 1),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                        
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                        
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                        
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	public static function redirect($location, $method = 301)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		header("Location: {$location}", TRUE, $method); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		exit();  | 
            
                            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                View Code Duplication | 
                	public static function send404()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'HTTP/1.1 404 Not Found',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Cache-Control: no-cache',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Type: text/html',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() - 1),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    82
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                View Code Duplication | 
                	public static function send503()  | 
            
                            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		$array = array(  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'HTTP/1.1 503 Service Unavailable',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Cache-Control: no-cache',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Language: en',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Content-Type: text/html',  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'Expires: ' . self::get_date(time() - 1),  | 
            
                            
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                			'Last-Modified: ' . self::get_date(),  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			'X-Powered-By: jacobemerick.com');  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		self::send($array);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                    93
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static function send($array, $gzip = true)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if($gzip)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			self::start_gzipping();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		foreach($array as $row)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			header($row, TRUE);  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static function get_date($timestamp = false)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	{ | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if($timestamp == 0)  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                			$timestamp = time();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		return gmdate('D, d M Y H:i:s \G\M\T', $timestamp); | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	private static function start_gzipping()  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                		if(!ob_start('ob_gzhandler')) | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                            ob_start();  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                	}  | 
            
            
                                                                                                            
                            
            
                                    
            
            
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                | 
                    119
                 | 
                                    
                                                     | 
                
                 | 
                }  | 
            
            
                                                        
            
                                    
            
            
                | 
                    120
                 | 
                                    
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                 | 
                 | 
            
            
                        
Short opening tags are disabled in PHP’s default configuration. In such a case, all content of this file is output verbatim to the browser without being parsed, or executed.
As a precaution to avoid these problems better use the long opening tag
<?php.