PHP uses the header function to set the HTTP header to parse the header.

As follows:
Copy codeThe Code is as follows:
// Define the 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://www.example.org /');

// File delay redirection:
Header ('refresh: 10; url = http://www.example.org /');
Print 'you will be redirected in 10 seconds ';

// Of course, you can also use html syntax to implement
// <Meta http-equiv = "refresh" content = "10; http://www.example.org //>

// Override X-Powered-By: PHP:
Header ('x-Powered-By: PHP/4.4.0 ');
Header ('x-Powered-By: Brain/0.6b ');

// Document Language
Header ('content-language: en ');

// Tell the browser the last modification time
$ 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 document content has not changed
Header ('HTTP/1.1 304 Not modified ');

// Set the Content Length
Header ('content-Length: 1234 ');

// Set it to a download type
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 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 the 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

// Display the 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 ';