Some common instruction _php skills based on header

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

Fix 404 Pages: Use this header directive to resolve the 404 header generated by the URL rewrite
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 moved Permanently ');

Access restricted
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 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 modification time (available at cache time)
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 yet 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 (available when caching):
Set content Length (good for caching):
Header (' content-length:1234 ');

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

//Prohibit caching of current documents:
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, June 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 the 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'll 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 no resource response found
Header (' http/1.1 404 Not Found ');

Send a 301 Permanent redirect
Header (' http/1.1 moved Permanently ');

Send a 503 Web site temporarily unable to access
Header (' http/1.1 503 Service temporarily unavailable ');

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

Set Page 3 seconds to redirect
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 Web page output a PDF document
Header (' content-type:application/pdf ');

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