must revalidate

PHP Quick Development Guide for exporting EXCELPhpexcel has proprietary development documentation. For detailed operations, see its development documentation. This document only optimizes and integrates its usage to facilitate rapid development in

PHP header function usage and precautions, phpheader function details void header ( string $string [, bool $replace = true [, int $http_response_code ]] ) : Send a raw HTTP header Below are some usage of headers: 1. Use the header function to jump

Laravel5.4 generates the verification code and laravel5.4 the verification code. Summary: This blog introduces how to use gregwar/captcha to implement the verification code, as well as possible problems and solutions.

The iap top-up base64 code for IOS game players is sent to Apple's verification receipt. There is no strange problem in the returned value of in_app. iapin_app In the past few days, our IOS games have been shelved and many users have been recharged.

Chenxi's html Study Notes and chenxi Study Notes 1. browser kernel:1. ie: trident Kernel2. firefox: gecko (gecko) Kernel3. safari: webkit (Browser core) Kernel4. opera: It used to be the presto (Rapid) kernel. Now it is switched to Google's blink

As a software developer, you will certainly have a complete hierarchical understanding of how Web applications work, as well as the technologies used in these applications: browsers, http,html, Web servers, requirements processing, and so On.This

What are cache caches?The cache is between the client and the server, or between the server and the server. It decides whether to save a copy of the obtained resources, how to use the copy, and when to update the copy, which includes the HTML,

Transfer from 88 Old Port http://www.cnblogs.com/xingyue1988/From the user input a Web site to the end of the Web page to show the user, what happened in the middle? This is a simple and complex question.The approximate process is summarized as

In the Web page. Each time the client visits the server. There are parts that do not require repeated requests. such as some pictures, videos, etc. there is no need to request each time, this will allow the server to increase the workload. In order

header(‘HTTP/1.1 200 OK‘); // ok 正常访问header(‘HTTP/1.1 404 Not Found‘); //通知浏览器 页面不存在header(‘HTTP/1.1 301 Moved Permanently‘); //设置地址被永久的重定向 301header(‘Location: http://www.ithhc.cn/‘); //跳转到一个新的地址header(‘Refresh: 10; url=http://www.ithhc.cn/‘);

First, CSS and JS Why with parameters (shaped like. css?t= and. js?t=) How to get the codeCSS and JS with parameters (shaped like. css?t= and. js?t=)There are two possible ways to use parameters:First, the script does not exist, but the server is

This article is based on RFC2616 (http/1.1 specification), referencehttp://www.w3.org/Protocols/rfc2068/rfc2068http://www.w3.org/Protocols/rfc2616/rfc2616Http://www.ietf.org/rfc/rfc3229.txtTypically HTTP messages include client-to-server request

In the implementation of the session using cookie technology, session will save a session_id (session number) in the client cookie, the server side to save other session variables, such as Session_name and so on. When the user requests the server

We can use the header to control the HTML page using the META tag and the PHP program. For example: The code is as follows Header (' cache-control:max-age=86400, Must-revalidate ');//24 hour Header (' last-modified: '. Gmdate (' d, D M Y h:i:s ').

First, nginx anti-theft chainAnti-theft chain refers to a site's resources (pictures or attachments) without permission to browse and download other sites, especially the hotlinking of popular resources, the bandwidth consumption of the site is very

As a software developer, you will certainly have a complete hierarchical understanding of how Web applications work, as well as the technologies used in these applications: browsers, http,html, Web servers, requirements processing, and so on.This

No matter how many headers the page has, it executes the last one, but it is conditional, for example: Header (' location:http://www.jb51.net '); Header (' location:http://www.g.cn '); Header (' location:http://www.baidu.com '); This will jump to

HTML HTTP protocol header information controls the page in several places cached information, including browser side, intermediate cache server (such as: squid, etc.), the Web server side. This article discusses the caching situation in the

Our iOS game has been on the shelves these days. And then received a lot of user recharge. But there are only 2 itunesconnet on top of it. Someone must have cheated us. First, we will introduce our verification process: Mobile phone to initiate

About Kaptcha Introduction, we do not say, online a bunch of information. Use Kaptcha to facilitate configuration:     captcha font     captcha font size      the font color of the code font     The scope of the contents of the Verification