PHP

Yii2 cookies are mainly operated through yiiwebRequest and yiiwebResponse. the Session of Yii2 is relatively simple and can be operated directly through Yii ::$ app-& gt; session. This article introduces COOKIE and SESSION usage. For more

Encapsulation is to encapsulate the extracted data and the operations on the data, and the data is protected internally. only authorized operations (methods) in other parts of the program can perform operations on the data. The following is the body

This article mainly introduces the socket communication principle of php and describes the principle of socket communication mechanism. I think it is quite good. I will share it with you and give you a reference. Are you familiar with TCP/IP, UDP,

[Guide] 1. static cache of the entire page, that is, generating all pages into html static pages. the static pages accessed by users are not parsed by the php server. This method is common in CMS systems, such as dedecms. a common implementation

Redis is an open-source Key-Value database written in C language that supports network interaction and can be stored in memory or persistently. This article will not introduce redis in detail. This article mainly introduces two methods for

This article introduces the PHP multi-image preview and upload function for producing image regions. the upload button # btn can replace the image you want [Html] view plain copyView the CODE piece derived from my CODE piece on CODE

Func_get_args ()-returns an array. each item in this array is a function parameter. According to the php manual, we provide the function usage format. {Code ...} if you are not able to really understand this function, let's go through things... func_

Front-end code {code ...} controller: define an array and set some upload-related parameters {code ...} call the CI Upload generic class and execute the upload {code ...} receive error message or success message {code ...} {code ...} front-end code

I. before implementing a framework, we need to understand the effects of the framework. according to the traditional framework ideas, we can summarize the following: 1. implement the MVC architecture and separate the control, logic, and view layers.

This article mainly introduces the Yii2 framework to summarize common database operations. I think this is a good example. I will share it with you and give you a reference. Let's take a look at this article with a look at the Yii2 framework to

This article describes how to use PHP to obtain the weather instance code of a specified region. For more information about how to use PHP to obtain the weather instance code of a specified region, see the following article, for more information,

Yii uses the model-view-controller (MVC) design pattern widely used in Web development. The goal of MVC is to separate the business logic from the consideration of the user interface, so that developers can easily change each part without affecting

After introducing the basic concepts in Yii, we will introduce the general development process for developing Web applications using Yii. The development process here assumes that we have completed the analysis of application requirements and

Although the model-view-controller (MVC) is widely known to almost every Web developer, the rational use of MVC in actual application development still bothers many people. The core idea behind MC is code reusability and logic and... Although the

Fragment caching refers to caching a webpage clip. For example, if a page displays the annual sales summary in the table, we can store the table in the cache to reduce the time for each request to be re-generated. To use fragment cache, go to the

When fragmentcaching or pagecaching is used, we often encounter such a situation where the entire part of the output is static except for some places. For example, the help page may display static help information, while the user name is displayed...

Cache is a simple and effective way to improve the performance of Web applications. By storing relatively static data to the cache and retrieving the cache when receiving the request, we save the time required to generate the data. Using cache in

This article mainly introduces you to the notes about LaravelRoute redirection. the detailed sample code is provided in this article. if you need it, you can refer to it for reference. let's take a look at it. Problems found Recently, I found a

PHP exports a CSV abstract class. The total number of records and the number of records per batch are calculated and exported cyclically. Avoid insufficient memory. Php exports a CSV abstract class. The total number of records and the number of

In the Range user request header, specify the location of the first byte and the location of the last byte. for example, (Range: 200-300) php supports resumable data transfer, it mainly relies on the HTTP header HTTP_RANGE. Principle of HTTP