must revalidate

Use of the PHP header function 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, Max-age, must-revalidate, etc., and the default is private. Its function is

After the WML page is downloaded to the WAP device, it will be stored in the WAP device memory for a period of time until this time expires. After that, the page will be downloaded from the server, rather than from the cache of the WAP device. when

The Phpheader () function syntax and usage code are described in detail. common status codes of headers are listed here. Syntax: The code is as follows: Void header (string $ string [, bool $ replace = true [, int $ http_response_code) Send the

Use PHP to manually make webpages expire. detrox [translation]Keyword webpage expired, registration webpage writingSource http://www.phpbuilder.net/columns/clark20030702.php3 Manually Expiring Web PagesManual webpage expiration By Joe

This article provides a detailed analysis of HTTP message header webpage Cache Control and common header commands. For more information, see This article provides a detailed analysis of HTTP message header webpage Cache Control and common header

InHeader ("Cache-control: private"); the webpage Cache is controlled by the PHP Cache controller in the HTTP message header, common values include private, no-cache, max-age, and must-revalidate. The default value is private. The function of browser

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, Max-age, must-revalidate, etc., and the default is private. Its function is divided into the following

HTML config no-cache (memo)No-cache ConfigurationThe HTML table header is as follows Meta http-equiv= "content-type" content= "text/html; Charset=utf-8 " /> Meta http-equiv= "pragma" content="No-cache"> Meta

Grammar: Copy Code code as follows: Void Header (String $string [, bool $replace =true [, int $http _response_code) Send the original HTTP header to the client Need to note: The header function must be invoked before any actual

[Php]Function downloadFile ($ fullPath ){ // Must be fresh startIf (headers_sent () // check if any header has been sentDie ('headers sent'); // Equivalent to exit () // Required for some browsersIf (ini_get ('zlib. output_compression ') // Gets the

The Phpheader () function syntax and usage code are described in detail. common status codes of headers are listed here. Syntax: The code is as follows: Void header (string $ string [, bool $ replace = true [, int $ http_response_code) Send the

Phpheader () function syntax and code. Syntax: Copy the code as follows: Voidheader (string $ string [, bool $ replacetrue [, int $ http_response_code) to send the original HTTP Header to the client. note: The Header function must be in Syntax: The

The Phpheader () function syntax and usage code are described in detail. Common status codes of headers are listed here. The Php header () function syntax and usage code are described in detail. Common status codes of headers are listed here.

This article provides a detailed analysis of HTTP message header webpage cache control and common header commands, for more information, see "Cache-control" in the HTTP message header, common values include private, no-cache, max-age, and

Php forms are submitted and then rolled back. The content of the form is cleared by default (when session_start is used). The solution is after session_start, write the header (Cache-control: private) before the character output. The php form is

PHP back one page With onclick= "History.go (-1);" or onclick= "history"; PHP forms are backed up after submission, and the contents of the form are emptied by default (when using Session_Start). The workaround is after Session_Start (), the

Use onclick = "history. go (-1); "or onclick =" history (back) "; php form after submission and then back, the content of the form is cleared by default (when session_start is used ), solution: after session_start (), write h php before the

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, Max-age, must-revalidate, etc., and the default is private. Its function is divided into the following situations

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, Max-age, must-revalidate, etc., and the default is private. Its function is divided into the following situations

Php returns a page with onclickhistory. go (-1); or onclickhistory (back); php form after submission and then back, the form content is cleared by default (when session_start is used ), the solution is to write the header ("Cache-control: private")