Common instructions based on headers _ PHP Tutorial

Detailed description of some common headers. Common header commands include HTTP-Version, Status, and Reason-Phrase ). Common header commands
The header is divided into three parts:
The first part is the HTTP Version );
The second part is the Status code );
The third part is the Reason Phrase (Reason-Phrase ).

// Fix 404 pages: Use this header command to solve the 404 header generated by URL rewriting.
Header ('http/1.1 200 OK ');

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

// The page is permanently deleted. you 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/1.1 500 Internal Server Error ');

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

Redirection after a delay of some time
// Redrict with delay:
Header ('refresh: 10; url = http://www.example.org /');
Print 'You will be redirected in 10 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 = English)
// Content language (en = English)
Header ('content-language: en ');

// The last modification time (which 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 that the content to be retrieved has not been updated
// Header for telling the browser that the content
// Did not get changed
Header ('http/1.1 304 Not modified ');

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

// Used to download an object:
// Headers for an download:
Header ('content-Type: application/octet-stream ');
Header ('content-Disposition: attachment; filename = "example.zip "');
Header ('content-Transfer-Encoding: binary ');

// Disable caching 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, 26 Jul 1997 05:00:00 GMT ');

// Set the 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 ');

// The logon dialog box is displayed 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 will be displayed if the user hits cancel or ';

Print 'enters wrong login data';?>

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

// Send a 404 error message indicating that the resource cannot be found
Header ('http/1.1 404 Not Found ');

// Send a 301 permanent redirect
Header ('http/1.1 301 Moved Permanently ');

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

// Webpage redirection
Header ('Location: http://www.jb51.net ');

// Set webpage redirection 3 seconds later
Header ('refresh: 3; url = http://www.jb51.net ');
Echo 'web page will jump to http://www.jb51.net in 3 seconds ';

// Sets the webpage encoding.
Header ('content-Type: text/html; charset = utf-8 ');

// Set a webpage to output an image stream
Header ('content-Type: image/jpeg ');

// Set the webpage to output a pdf document
Header ('content-Type: application/pdf ');

// Set the webpage to output a zip file
Header ('content-Type: application/zip ');

Expose header is divided into three parts: the first part is the HTTP protocol Version (HTTP-Version), the second part is the Status code (Status), and the third part is the Reason Phrase (Reason-Phrase )....