Phpheader function details _ PHP Tutorial-php Tutorial

Phpheader function details. The Cache of a webpage is controlled by the cache-control in the HTTP message header. common values include private, no-cache,-age, must-1-Cache, and must --- control: -age52 --- 3-revalidate,

The Cache of web pages is controlled by "Cache-control" in the HTTP message header, common values include private, no-cache,-age, must-1-cache, must --- control:-age = 52---3-revalidate, and -- 4-control -: fri, 31 Dec 1999 16:00:00 = no-=-1-1.1 the specified CacheControl = no-1.0 server cannot use the Cache-1.0 server. IE uses Pragma: no -: internet Explorer does not cache this response. Note: Pragma: no-cache prevents caching only when used in secure connections. if it is used on a non-secure page, the processing method is as follows: --- ("HTTP/1.1 404 (" HTTP/1.1 404 ("Location: http :(" HTTP/1.1 302 ("Location: http :(" Content-type: text/plain '); ('content-Disposition: attachment; filename = "weizhifeng. ('weizhifeng. /1.1
 

Refer Cache-control in the HTTP message header. common values include private, no-cache,-age, must-1-cache, and must--control: -age = 5 2---3-revalidate ,...