PHP header examples

php-headers.php

<?php

	// Source: http://www.jonasjohn.de/snippets/php/headers.htm

	// Use this header instruction to fix 404 headers
	// produced by url rewriting...
	header('HTTP/1.1 200 OK');
	 
	// Page was not found:
	header('HTTP/1.1 404 Not Found');
	 
	// Access forbidden:
	header('HTTP/1.1 403 Forbidden');
	 
	// The page moved permanently should be used for
	// all redrictions, because search engines know
	// what's going on and can easily update their urls.
	header('HTTP/1.1 301 Moved Permanently');
	 
	// Server error
	header('HTTP/1.1 500 Internal Server Error');
	 
	// Redirect to a new location:
	header('Location: http://www.example.org/');
	 
	// Redriect with a delay:
	header('Refresh: 10; url=http://www.example.org/');
	print 'You will be redirected in 10 seconds';
	 
	// you can also use the HTML syntax:
	// <meta http-equiv="refresh" content="10;http://www.example.org/ />
	 
	// override X-Powered-By value
	header('X-Powered-By: PHP/4.4.0');
	header('X-Powered-By: Brain/0.6b');
	 
	// content language (en = English)
	header('Content-language: en');
	 
	// last modified (good for caching)
	$time = time() - 60; // or filemtime($fn), etc
	header('Last-Modified: '.gmdate('D, d M Y H:i:s', $time).' GMT');
	 
	// header for telling the browser that the content
	// did not get changed
	header('HTTP/1.1 304 Not Modified');
	 
	// set content length (good for caching):
	header('Content-Length: 1234');
	 
	// Headers for an download:
	header('Content-Type: application/octet-stream');
	header('Content-Disposition: attachment; filename="example.zip"'); 
	header('Content-Transfer-Encoding: binary');
	// load the file to send:
	readfile('example.zip');
	 
	// Disable caching of the current document:
	header('Cache-Control: no-cache, no-store, max-age=0, must-revalidate');
	header('Expires: Mon, 26 Jul 1997 05:00:00 GMT'); // Date in the past
	header('Pragma: no-cache');
	 
	// set content type:
	header('Content-Type: text/html; charset=iso-8859-1');
	header('Content-Type: text/html; charset=utf-8');
	header('Content-Type: text/plain'); // plain text file
	header('Content-Type: image/jpeg'); // JPG picture
	header('Content-Type: application/zip'); // ZIP file
	header('Content-Type: application/pdf'); // PDF file
	header('Content-Type: audio/mpeg'); // Audio MPEG (MP3,...) file
	header('Content-Type: application/x-shockwave-flash'); // Flash animation
	 
	// show sign in box
	header('HTTP/1.1 401 Unauthorized');
	header('WWW-Authenticate: Basic realm="Top Secret"');
	print 'Text that will be displayed if the user hits cancel or ';
	print 'enters wrong login data';