Requirements:
Send multiple pieces of data to the background, some of which already exist in records, and only the values of some of their fields need to be modified.
(Recommended tutorial: yii framework)
Solution:
The code is as follows:
foreach($goods as $k => $v) { if(yourModel::updateAllCounters( ['goods_num' => $v], ['goods_id' => $k,'user_id' => $id] )) { continue;//如果已经更新,则跳过此次循环,到下一次 } $data[] = [ 'user_id' => $id, 'goods_id' => $k, 'goods_num' => $v, 'created_time' => $time, ] }
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Yii remains a powerful choice for developers. 1) Yii is a high-performance PHP framework based on the MVC architecture and provides tools such as ActiveRecord, Gii and cache systems. 2) Its advantages include efficiency and flexibility, but the learning curve is steep and community support is relatively limited. 3) Suitable for projects that require high performance and flexibility, but consider the team technology stack and learning costs.

Yii framework is suitable for enterprise-level applications, small and medium-sized projects and individual projects. 1) In enterprise-level applications, Yii's high performance and scalability make it outstanding in large-scale projects such as e-commerce platforms. 2) In small and medium-sized projects, Yii's Gii tool helps quickly build prototypes and MVPs. 3) In personal and open source projects, Yii's lightweight features make it suitable for small websites and blogs.

The Yii framework is suitable for building efficient, secure and scalable web applications. 1) Yii is based on the MVC architecture and provides component design and security features. 2) It supports basic CRUD operations and advanced RESTfulAPI development. 3) Provide debugging skills such as logging and debugging toolbar. 4) It is recommended to use cache and lazy loading for performance optimization.

Yii's purpose is to enable developers to quickly and efficiently build web applications. Its implementation is implemented through the following methods: 1) Component-based design and MVC architecture to improve code maintainability and reusability; 2) Gii tools automatically generate code to improve development speed; 3) Lazy loading and caching mechanism optimization performance; 4) Flexible scalability to facilitate integration of third-party libraries; 5) Provide RBAC functions to handle complex business logic.

Yiiisversatileavssuitable Projectsofallsizes.1) Simple Sites, YiiOofferseassetupandrapiddevelopment.2) ForcomplexProjects, ITModularityandrbacSystemManagescalabilityandSecurity effective.

The Yii framework will continue to play an important role in the future development of PHP frameworks. 1) Yii provides efficient MVC architecture, powerful ORM system, built-in caching mechanism and rich extension libraries. 2) Its componentized design and flexibility make it suitable for complex business logic and RESTful API development. 3) Yii is constantly updated to adapt to modern PHP features and technical trends, such as microservices and containerization.

The Yii framework is suitable for developing web applications of all sizes, and its advantages lie in its high performance and rich feature set. 1) Yii adopts an MVC architecture, and its core components include ActiveRecord, Widget and Gii tools. 2) Through the request processing process, Yii efficiently handles HTTP requests. 3) Basic usage shows a simple example of creating controllers and views. 4) Advanced usage demonstrates the flexibility of database operations through ActiveRecord. 5) Debugging skills include using the debug toolbar and logging system. 6) Performance optimization It is recommended to use cache and database query optimization, follow coding specifications and dependency injection to improve code quality.

In Yii2, there are two main ways to display error prompts. One is to use Yii::$app->errorHandler->exception() to automatically catch and display errors when an exception occurs. The other is to use $this->addError(), which displays an error when model validation fails and can be accessed in the view through $model->getErrors(). In the view, you can use if ($errors = $model->getErrors())


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