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During the development process, the information filled in when the page is returned due to a form error is often lost. To support page Jump, you can use two methods.First, use the header method to set the message header cache-control Header

Use the PHPheader () function in detail (error settings such as 301 and 404 ). If you have just started learning PHP, there may be many functions that need to be studied. today we will learn how to use PHPHeader (). for more instructions, please

Export data to Excel or CSV files based on php (with UTF-8 and gbk encoding conversion ). Php imports garbled characters to excel because utf8 encoding does not support all utf8 transcoding in the XP system. it perfectly solves the UTF-8 encoding

This article describes how to export php code to Excel or CSV (with UTF-8 and gbk encoding conversion, if you need a friend, refer to importing php to excel with garbled characters because utf8 encoding does not support all utf8 encoding and

How to retain the entered information after PHP fails to submit the form. This article introduces some methods to summarize how to retain the entered information after PHP fails to submit the form. The most common method is to use the cache method,

PHPheader () function description (301, 404, and other error settings ). If you have just started learning PHP, there may be many functions that need to be studied. today we will learn how to use PHPHeader (). for more instructions, please refer to

Use the PHPheader () function to implement the 404 error prompt function on the page. we have compiled the detailed usage of the PHPheader () function and shared it with you. we need to provide more support for our 404 page. If you have just started

If you have just started to learn PHP, there may be many functions need to study, today we will learn how to use the PHP Header (), more instructions, please refer to the PHP Chinese manual, the following is a detailed use of the header function

PHP Session Principle Session is a way to keep user session data on the server side, and the corresponding cookie is to keep the user data on the client. HTTP protocol is a stateless protocol, the server after the response has lost the connection

During the development process, forms often encounter errors and all information filled in when the page is returned is lost. to support page bounce, you can use either of the following methods. 1. use the header to set the Cache control header

If you have just started to learn PHP, there may be many functions need to study, today we will learn how to use the PHP Header (), more instructions, please refer to the PHP Chinese manual, the following is a detailed use of the header function

In-depth analysis of cache and in-depth analysis of CacheThree things about cache This article focuses on the detailed process of caching. To make it easy for everyone to understand and selectively understand the entire cache mechanism, I will start

First, use the header method to set the message header cache-control Quote:Header ('cache-control: private, must-revalidate'); // supports page Jump back Second, use the session_cache_limiter method. Quote:// Note that it should be written

To make the browser cache, you need to send a specified HTTP header to the browser to tell the browser how long it takes to cache, or never cache it. For. net Program In fact, we have been using this method. When we specify the cache location as

When a user submits a form, the same record may be repeatedly inserted into the database due to the speed of the network or the malicious refreshing of the webpage. This is a tricky problem. We can start with the client and the server to avoid

Php imports garbled characters into excel because utf8 encoding does not support all utf8 transcoding In the XP system. UTF-8 encoding casePhp code Copy codeThe Code is as follows: Header ("Content-Type: application/vnd. ms-excel; charsets = UTF-8 "

Document directory     Cache channel) Let's look back at the simple implementation of cache in rest wcf 4.0: 1. Configuration 2. Use Configuration [OperationContract][WebGet (UriTemplate = "/Time")] [AspNetCacheProfile

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

This article mainly describes how to retain the information that has been filled in after PHP fails to submit a form. For more information, see this article, the most common method is to use the cache method. if the network speed is slow, it may

PHP's Cookie A cookie is a mechanism for storing data on a remote browser to track and identify users.PHP sends a cookie in the header of the HTTP protocol, so the Setcookie () function must be called before other information is