Examples of php using the header function to set various HTTP headers

/**
 desc: header function sets various HTTP headers
 link: bbs.it-home.org
 date: 2013/2/24
*/
//Define encoding
header( 'Content-Type: text/html;charset=utf-8 ');

//Atom
header ('Content-type: application/atom+xml');

//CSS
header('Content-type: text/css');

//Javascript
header('Content-type: text/javascript' );

//JPEG Image
header('Content-type: image/jpeg');

//JSON
header('Content-type: application/json');

//PDF
header(' Content-type: application/pdf');

//RSS
header('Content-Type: application/rss+xml; charset=ISO-8859-1');

//Text (Plain)
header( 'Content-type: text/plain');

//XML
header('Content-type: text/xml');

// ok
header('HTTP/1.1 200 OK');

/ /Set a 404 header:
header('HTTP/1.1 404 Not Found');

//Set the address to be permanently redirected
header('HTTP/1.1 301 Moved Permanently');

//Go to a New address
header('Location: http://bbs.it-home.org/');

//File delayed redirection:
header('Refresh: 10; url=http://bbs.it-home .org/');
print 'You will be redirected in 10 seconds';

//Of course, it can also be implemented using html syntax
// header('Content-Transfer-Encoding: binary');
// load the file to send:
readfile('example.zip');

// Disable caching for 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 format
header('Content-Type: image/jpeg'); //JPG***
header('Content-Type: application/zip'); // ZIP file
header(' Content-Type: application/pdf'); // PDF file
header('Content-Type: audio/mpeg'); // Audio file
header('Content-Type: application/x-shockw**e-flash '); //Flash animation

//Show login dialog 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';
?>