PHP Header function Detailed _php tutorial

The cache of the Web page is controlled by the "Cache-control" in the HTTP message header, and the common values are private, No-cache,-age, must-1-cache, must---control:-age=52---3-revalidate,--4The-control value is "no-: Fri, 1999 16:00:00= no-=no-=-1-1.1 server Designation CacheControl = no-1.0 server cannot use cache-1.0 server, ie using pragma:no-:< span>Internet Explorer does not cache this response. Note: Pragma:no-cache prevents caching only when used in a secure connection, and if used in non-secure pages, is handled in the same way as expires:---< span>("http/1.1 404("http/1.1 404< span>("Location:http:< span>("http/1.1 302("Location:http:< span>("Content-type:text/plain");< span>(' content-disposition:attachment; Filename= ' Weizhifeng.(' Weizhifeng./1.1 (' http/1.1 OK '< span>(' http/1.1 404 Not Found '< span>(' http/1.1 301 Moved permanently ');< span>(' location:http://www.example.org/'< span>(' Refresh:10; url=http://www.example.org/'' You'll be redirected in seconds '< span>(' Content-transfer-encoding:binary '< span>(' Example.zip '< span>(' Cache-control:no-cache, No-store, max-age=0, Must-revalidate '(' Expires:mon, Jul 1997 05:00:00 GMT ');< span>(' Pragma:no-cache '< span>(' content-type:text/html; Charset=iso-8859-1 '(' content-type:text/html; Charset=utf-8 '(' Content-type:text/plain ');< span>(' Content-type:image/jpeg ');< span>(' Content-type:application/zip ');< span>(' content-type:application/pdf ');< span>(' Content-type:audio/mpeg ');< span>(' Content-type:application/x-shockwave-flash '); < span> (' http/1.1 401 Unauthorized '   (' www-authenticate:basic realm= ' Top Secret '  ' Text that'll be Displayed if the user hits cancel or '   ' enters wrong login data '  ?> 
                              

                              

                              
http://www.bkjia.com/phpjc/440357.html  www.bkjia.com  true  http://www.bkjia.com/phpjc/440357.html  techarticle   the cache of the Web page is controlled by the Cache-control in the HTTP message header, and the common values are private, No-cache,-age, Must-1-cache, must---control:-age=5 2---3-revalidate 、... 
                              
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