PHP uses the header function to set the HTTP Header Example method header (xlsx download)

Reprint http://justcoding.iteye.com/blog/601117/

Defining 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 OK ');

Set a 404 Header:
Header (' http/1.1 404 Not Found ');

Set 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 Steering:
Header (' refresh:10; url=http://www.example.org/');
print ' You'll be redirected in ten 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 when it was last modified
$time = time ()-60; or Filemtime ($FN), etc
Header (' last-modified: '. Gmdate (' d, D M Y h:i:s ', $time). ' GMT ');

Tell the browser that the contents of the document have not changed
Header (' http/1.1 304 not Modified ');

Set Content length
Header (' content-length:1234 ');

Set as 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, Jul 1997 05:00:00 GMT '); Date in the past
Header (' Pragma:no-cache ');

To 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 files
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 would be displayed if the user hits cancel or ';
print ' enters wrong login data ';

$filename = RTrim ($_server[' document_root '), '/'). ' /app/files/payment_status.csv ';
Header (' content-disposition:attachment; filename=payment_status.xlsx ');
Header (' Content-type:application/vnd.openxmlformats-officedocument.spreadsheetml.sheet ');
Header (' Content-length: '. FileSize ($filename));
Header (' content-transfer-encoding:binary ');
Header (' cache-control:must-revalidate ');
Header (' Pragma:public ');
ReadFile ($filename);