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The advantages and disadvantages of mainstream PHP frameworks that you can understand at a glance
In this article, we will talk about the advantages and disadvantages of the four major PHP frameworks, so that you can better choose which PHP framework to use to complete the project during development, nonsense. Without further ado, let’s take a look! !
ThinkPHP
ThinkPHP (FCS) is a lightweight medium-sized framework, which is a Chinese PHP development framework transplanted from Java's Struts structure.
It uses object-oriented development structure and MVC mode, and simulates the tag library of Struts. It is more user-friendly in all aspects. It is relatively easy for developers familiar with J2EE to get started, and it is suitable for beginners of PHP framework.
The purpose of ThinkPHP is to simplify development, improve efficiency, and be easy to expand. Its support for databases already includes support for MySQL, MSSQL, Sqlite, PgSQL, Oracle, and PDO.
ThinkPHP has rich documentation and examples. The framework has strong compatibility, but its functions are limited, so it is more suitable for the development of small and medium-sized projects.
Advantages:
1. Easy to use, rich Chinese documentation;
2. The framework has strong compatibility, PHP4 and PHP5 are fully compatible Compatible and fully supports UTF8, etc.
3. Suitable for the development of small and medium-sized projects
Disadvantages:
1. The support for Ajax is not very good;
2. The directory structure is confusing and takes time to sort out;
3. It is easy to get started, but difficult to learn in depth.

Yii
Yii is a high-performance component-based PHP framework for developing large-scale Web applications.
Yii is written in strict OOP and has complete library references and comprehensive tutorials.
From MVC, DAO/ActiveRecord, widgets, caching, hierarchical RBAC, Web services, to theming, I18N and L10N, Yii provides almost everything needed for today's Web 2.0 application development. In fact, Yii is one of the most efficient PHP frameworks.
Advantages:
1. Pure OOP
2. Used for large-scale web applications
3. The model is easy to use
4. The development speed is fast and the running speed is also fast. Excellent performance and rich features
5. Use command line tools.
Disadvantages:
1. There is less guidance and consideration on the Model layer
2. Few document examples
3. Too much English
4. It requires proficiency in PHP technology and proficiency in OOP programming!
5. View is not an ideal view. The ideal view may be just html code and will not involve PHP code.
CodeIgniter
Advantages:
1.Code Igniter advocates the principle of "simplicity is beauty". There are no fancy design patterns, no fancy object structures, everything is so simple.
2. A few lines of code can start running, and a few more lines of code can be added to output. It can be said to be a model of "great simplicity".
3. The configuration is simple, all configurations are configured using PHP scripts, and the execution efficiency is high;
4. It has basic routing functions and can perform routing to a certain extent;
5. It has preliminary Layout function and can create a certain level of interface appearance;
6. The database layer is well encapsulated and has basic MVC functions. It is fast and concise, with not much code, high execution performance and simple framework. Easy to use, low learning cost, detailed documentation;
7. It comes with many simple and easy-to-use libraries, and the framework is suitable for small applications.
Disadvantages:
1. The implementation itself is not ideal. The internal structure is too confusing, and although it is simple and easy to use, it lacks expansion capabilities.
2. Simply understand the Model layer as database operations.
3. The framework is slightly simple and can only meet the needs of small applications, but is slightly less able to meet the needs of medium-sized applications.
Evaluation:
Overall In other words, it is worthwhile to use CodeIgniter to complete simple and fast applications. At the same time, it can construct a certain degree of layout to facilitate the reuse of templates.
The data operation layer is well encapsulated, and CodeIgniter does not use many too complex design patterns, and the execution performance and code readability are both good.
As for the additional library, it is not bad, simple and efficient.

Lavarel Framework
Advantages:
1. Laravel’s design ideas are very advanced and very suitable for Apply various development patterns TDD, DDD and BDD.
2. The biggest feature and excellence of laravel is that it integrates relatively new features of PHP and various design patterns.
3.Ioc container, dependency injection, etc.
Disadvantages:
Based on a component-based framework, so it is relatively bloated

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