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/*** function:php Header () examples (PHP) * * Desc:some examples on what to use the header () function of phpyou find a detailed tutorial at expertsrt.com (中文版) o R at Ffm.junetz.de (German). These is also a good help on caching at web-caching.com.

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

In the practical application of website construction, many small mistakes may occur, just as MySQL was not optimized at the beginning, affecting the overall browsing effect of the website. In fact, the regular HTTP status code of a website is the

1. Http response format The response of the Web server to the client generally includes a status line, some response headers, and a blank line and corresponding documents. 1. Status line: A status line consists of an HTTP version, a status code,

1. Telnet Google.com 802. Press "Ctrl +]" in the Telnet window, enter the "set localecho" command, and press the Enter key twice in a row. 3. Enter  Get, HTTP, 1.1 HOST: www.sohu.com/* is not required */ /* In addition, you can use the webpage data

HTTP cache Introduction Two ways to speed up your web application:1. Reduce the number of round trips for requests and responses2. Reduce the round-trip bytes of requests and responsesHTTP cache is the best way to reduce the number of round-

Microsoft. XMLHttp component attributes1. steps:1. Create an XMLHTTP object // MSXML4.0 is required2. Open the connection with the server, and define the command sending method, Service webpage (URL), and request permissions. The client opens a

There are three main reasons to start from the front-end:: There is a potential for improvement. If we reduce the volume by half, we can reduce the response time by 40%. It takes less time and resources to improve the frontend than to improve

JQuery. Ajax help information AJAX parameters in jQuery 1,UrlString (default: Current page address) the address of the request sent. 2,TypeString (default: "GET") Request Method ("POST" or "GET"), default: "GET ". Note: Other HTTP request methods,

HTTP status codes and Status Codes  An error may occur when the browser requests services from the web server. This may return the following series of status messages:1xx: Information Message: Description: 100 Continue The

Node. js static file server ultimate version, node. js static ultimate version First, I would like to thank github for providing the source code on github. Compared with last night's static file server, it is a little more complex and can learn a

The complete HTTP 1.1 specification is from RFC 2616. You can view it at http://www.rfc-editor.org/on-line. The HTTP 1.1 Status Code is marked as a new feature because many browsers only Support HTTP 1.0. You should only send the status code to

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

Many people asked, isn't it all refreshed? What is the difference? Actually, there are still some. Press enter in the address bar. First, the requested URI does not expire in the browser cache. In this case, the HTTP Request Message Header

Source: php development and learning portal welcome to my personal website 1. Client Cache tag, which is the most basic method for page caching. 1 "Expires" Content ="Mon, 25 Feb 2014 00:00:00 GMT"/> 2

The status of the XMLHTTPRequest object indicates the status of the current HTTP request, which is a long integer data. Here we will introduce its meaning. HTTP Request status and its meaning 1xx-Information prompt100-the initial request has

Translation: http://developer.yahoo.com/performance/rules.html Recently, youmonitor. Us is optimizing the performance of web applications and foundArticleHigh Performance Web sites: the importance of front-end performance, I feel that its 14

Original article link Another such thing is:Buffer. Here we will talk about buffer and cache. So what exactly are they used? In fact, they are an intermediate layer between two relatively independent systems to avoid unnecessary interaction and

HTTP status: 202, 301, 304, 404, 503 reprinted Baidu... 301, 404, 200, 304, and other HTTP status, what does it mean? In the practical application of website construction, many small mistakes may occur, just as MySQL was not optimized at the

Mathieu fenniak, author of the original article, shouted in his blog: Do not design fragile Web APIs. Otherwise, your partners or third-party developers will hate you and leave you alone. He believes that the key to designing a relatively stable and