Some common instructions based on header _php tutorial

Header Common Directives
The header is divided into three parts:
The first part is the version of the HTTP Protocol (http-version);
The second part is state code (status);
The third part is the reason phrase (reason-phrase).

Fix 404 Pages: Use this header command to resolve the 404 header generated by URL rewriting
Header (' http/1.1 OK ');

Set 404 Header: Page not found
Header (' http/1.1 404 Not Found ');

Pages are permanently deleted and can tell the search engine to update their URLs
Set Moved permanently header (Good for redrictions)
Use with location header
Header (' http/1.1 301 Moved permanently ');

Restricted access
Header (' http/1.1 403 Forbidden ');

//Server error
Header (' http/1.1 Internal Server Error ');

//Redirect to a new location
Redirect to a new location:
Header (' location:http://www.example.org/');

Redirect after a period of delay
Redrict with delay:
Header (' refresh:10; url=http://www.example.org/');
print ' You'll be redirected in ten seconds ';

//Overwrite x-powered-by value
Override x-powered-by:php:
Header (' x-powered-by:php/4.4.0 ');
Header (' x-powered-by:brain/0.6b ');

//Content language (en = 中文版)
Content language (en = 中文版)
Header (' content-language:en ');

//Last modified time (can be used in cache)
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 ');

//Tell the browser what to get is not updated
Header for telling the browser the content
did not get changed
Header (' http/1.1 304 not Modified ');

//Set the length of the content (can be used when caching):
Set content Length (good for caching):
Header (' content-length:1234 ');

//To download files:
Headers for an download:
Header (' Content-type:application/octet-stream ');
Header (' content-disposition:attachment; filename= ' Example.zip ');
Header (' content-transfer-encoding:binary ');

//Disable caching of the current document:
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, Jul 1997 05:00:00 GMT ');

//Set Content type:
//Date in the Pastheader (' 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 ');

//Display Login dialog box, which can be used for HTTP authentication
//Flash animation//show sign In box
Header (' http/1.1 401 Unauthorized ');
Header (' Www-authenticate:basic realm= ' Top Secret ');
print ' Text that would be displayed if the user hits cancel or ';

print ' enters wrong login data ';? >

Send a 200 normal response
Header ("http/1.1 OK");

Send a 404 resource response not found
Header (' http/1.1 404 Not Found ');

Send a 301 Permanent redirect
Header (' http/1.1 301 Moved permanently ');

Send a 503 site temporarily inaccessible
Header (' http/1.1 503 Service temporarily unavailable ');

Web redirection
Header (' location:http://www.jb51.net ');

Set page redirection after 3 seconds
Header (' Refresh:3; Url=http://www.jb51.net ');
Echo ' webpage will jump to Http://www.jb51.net ' in 3 seconds;

Set page encoding
Header (' content-type:text/html; Charset=utf-8 ');

Set page output a picture stream
Header (' Content-type:image/jpeg ');

Set up a Web page to output a PDF document
Header (' content-type:application/pdf ');

Set up a ZIP document for Web page output
Header (' Content-type:application/zip ');

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