


There is a number of to-do items in the menu bar. The number increases or decreases according to the task operation. How to keep it updated?
The project adopts the iframe three-frame mode, the header is the menu bar, the middle and the bottom.
The current requirement is to display the number of to-do tasks on the menu bar. According to the user's corresponding task operations, the number of to-do tasks in different menu bars can be increased or decreased, because the menu bar is open, similar to the picture below:
So when the user operates (This operation refers to adding a task, completing a task, or deleting a task) a task, the corresponding position of the menu bar and the number of tasks are updated from time to time. How to do this?
My current approach is: in the operation area, refresh the header information after the operation is completed. However, although this can ensure that the number of tasks in the menu is updated, the current style will disappear and become the first one when entering the website. The default style is a bit unclear, please give me some advice!
This is what I did to update the header information:
Reply content:
The project adopts the iframe three-frame mode, the header is the menu bar, the middle and the bottom.
The current requirement is to display the number of to-do tasks on the menu bar. According to the user's corresponding task operations, the number of to-do tasks in different menu bars can be increased or decreased, because the menu bar is open, similar to the picture below:
So when the user operates (This operation refers to adding a task, completing a task, or deleting a task) a task, the corresponding position of the menu bar and the number of tasks are updated from time to time. How to do it?
My current approach is: in the operation area, refresh the header information after the operation is completed. However, although this can ensure that the number of tasks in the menu is updated, the current style will disappear and become the first one when entering the website. The default style is a bit unclear, please give me some advice!
This is what I did to update the header information:
http://www.workerman.net/web-sender
websocket
ajax
websocket
1. Use ajax to request every certain time
2. Use long connection websocket

Hot AI Tools

Undresser.AI Undress
AI-powered app for creating realistic nude photos

AI Clothes Remover
Online AI tool for removing clothes from photos.

Undress AI Tool
Undress images for free

Clothoff.io
AI clothes remover

Video Face Swap
Swap faces in any video effortlessly with our completely free AI face swap tool!

Hot Article

Hot Tools

Notepad++7.3.1
Easy-to-use and free code editor

SublimeText3 Chinese version
Chinese version, very easy to use

Zend Studio 13.0.1
Powerful PHP integrated development environment

Dreamweaver CS6
Visual web development tools

SublimeText3 Mac version
God-level code editing software (SublimeText3)

Hot Topics











This tutorial demonstrates how to efficiently process XML documents using PHP. XML (eXtensible Markup Language) is a versatile text-based markup language designed for both human readability and machine parsing. It's commonly used for data storage an

JWT is an open standard based on JSON, used to securely transmit information between parties, mainly for identity authentication and information exchange. 1. JWT consists of three parts: Header, Payload and Signature. 2. The working principle of JWT includes three steps: generating JWT, verifying JWT and parsing Payload. 3. When using JWT for authentication in PHP, JWT can be generated and verified, and user role and permission information can be included in advanced usage. 4. Common errors include signature verification failure, token expiration, and payload oversized. Debugging skills include using debugging tools and logging. 5. Performance optimization and best practices include using appropriate signature algorithms, setting validity periods reasonably,

Static binding (static::) implements late static binding (LSB) in PHP, allowing calling classes to be referenced in static contexts rather than defining classes. 1) The parsing process is performed at runtime, 2) Look up the call class in the inheritance relationship, 3) It may bring performance overhead.

A string is a sequence of characters, including letters, numbers, and symbols. This tutorial will learn how to calculate the number of vowels in a given string in PHP using different methods. The vowels in English are a, e, i, o, u, and they can be uppercase or lowercase. What is a vowel? Vowels are alphabetic characters that represent a specific pronunciation. There are five vowels in English, including uppercase and lowercase: a, e, i, o, u Example 1 Input: String = "Tutorialspoint" Output: 6 explain The vowels in the string "Tutorialspoint" are u, o, i, a, o, i. There are 6 yuan in total

What are the magic methods of PHP? PHP's magic methods include: 1.\_\_construct, used to initialize objects; 2.\_\_destruct, used to clean up resources; 3.\_\_call, handle non-existent method calls; 4.\_\_get, implement dynamic attribute access; 5.\_\_set, implement dynamic attribute settings. These methods are automatically called in certain situations, improving code flexibility and efficiency.

PHP and Python each have their own advantages, and choose according to project requirements. 1.PHP is suitable for web development, especially for rapid development and maintenance of websites. 2. Python is suitable for data science, machine learning and artificial intelligence, with concise syntax and suitable for beginners.

PHP is a scripting language widely used on the server side, especially suitable for web development. 1.PHP can embed HTML, process HTTP requests and responses, and supports a variety of databases. 2.PHP is used to generate dynamic web content, process form data, access databases, etc., with strong community support and open source resources. 3. PHP is an interpreted language, and the execution process includes lexical analysis, grammatical analysis, compilation and execution. 4.PHP can be combined with MySQL for advanced applications such as user registration systems. 5. When debugging PHP, you can use functions such as error_reporting() and var_dump(). 6. Optimize PHP code to use caching mechanisms, optimize database queries and use built-in functions. 7

PHP is widely used in e-commerce, content management systems and API development. 1) E-commerce: used for shopping cart function and payment processing. 2) Content management system: used for dynamic content generation and user management. 3) API development: used for RESTful API development and API security. Through performance optimization and best practices, the efficiency and maintainability of PHP applications are improved.
