pragma no cache

In this case, why cannot I download files? $ Root = "D:/wamp/www/New Folder /"; If (is_dir ($ root )) { $ OpenHandle = opendir ($ root ); While (false! ==( $ File = readdir ($ openHandle ))) { If (! Is_dir ($ root. $ file )) { Echo "". $ file

1. Disable the submit button after submission (such as csdn)2. If data processing is successful, you will be redirected to another page immediately!Refresh after the operation is indeed a problem. You can use to jump to the page and close this page.

Explore the usage of headers in php. Header () isusedtosendrawHTTPheaders. SeetheHTTP1.1specificationformoreinformationonHTTPheaders. Example 1: Copy the code as follows :? PHPHeader (Location: http: Header()Is used to send raw HTTPHeaders. See the

Header ()Is used to send raw HTTPHeaders. See the HTTP/1.1 specification for more information on HTTPHeaders. Example 1:Copy codeThe Code is as follows: Header ("Location: http://www.jb51.net ";);Exit; // after each redirection, you must add "exit"

The Header () function sends an original HTTP header [HTTP header] to the client. The header is the string sent by the server before the server passes HTML data to the browser with HTTP co-meaning. Separate HTML files with a blank line. For more

Brief introduction to HTTP message header webpage cache control and common header commands. The Cache of web pages is controlled by "cache-control" in the HTTP message header. common values include private, no-Cache, max-age, and must-revalidate,

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

Usage of Cache-control of header function parameters in php the Cache of web pages is controlled by "Cache-control" in the HTTP message header, common values include private, no-cache, max-age, and must-revalidate. the default value is private. The

The webpage cache is controlled by the cache-control in the HTTP message header. common values include private, no-cache, Max-age, must-revalidate, etc. The default value is private http://www.jb51.net/article/34017.htm. The function of browser

The function of browser review is divided into the following situations:(1) open a new windowIf the values are private, no-cache, and must-revalidate, the server will be accessed again when a new window is opened.If the max-age value is specified,

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

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

The Cache of web pages is controlled by "cache-control" 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 review is divided into the following

Header usage The Header () function sends an original HTTP header [HTTP header] to the client.The header is the string sent by the server before the server passes HTML data to the browser with HTTP co-meaning.Separate HTML files with a blank line.

Normally, the browser caches the page. In this case, you can access the page just after exiting. For example, you can access the page just cached after exiting, in some cases, this is not safe enough. The solution to the problem is as

How does thinkph output excel. Front-end is Loop output table, name = "list" id = "vo". click the button to output the table to excel. Quick Help Reply to discussion (solution) How does thinkphp export data from an excel file to the

Recently, when I changed the page, I saw response in the page. setheader ("Pragma", "No-Cache"); this statement does not know what it is. After investigation, it is found that the browser cache is disabled. Now, HTML, ASP, in PHP and jsp4 languages,

I have written an article [http protocol details]. This time I will continue to introduce the caching mechanism in HTTP. The HTTP Protocol provides a very powerful caching mechanism. Understanding these caching mechanisms is very helpful for

HTTP cache mechanism, HTTP packet structure, HTTP request and response process, browser cache control, Benefits of HTTP Cache A page may have hundreds of thousands of requests. If the server needs to respond to the request every time, the load on

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