The reasons for using microframework are fast startup, small resource usage, smooth learning curve, more free, and suitable for APIs and small projects. 1. Fast startup and small resource usage; 2. The learning curve is smooth and easy to get started; 3. No forced use of specific libraries or structures; 4. Suitable for APIs, small websites, and prototype development. Common PHP microframeworks include Slim, Lumen, Silex, and Flight. They are small but support middleware, routing definitions, and request response processing. Taking Slim as an example, after installation through Composer, you only need to create an App instance, define a route and run it to achieve simple functions. If your project only needs to do APIs or small sites, want to control dependency selection, do not require complex functions, and hope to deploy quickly, then a microframework is suitable; but if you want to do medium and large applications or need rich modules, a full stack framework such as Laravel is recommended.

PHP Micro Framework is a lightweight development tool designed for quickly building simple or specific functionality web applications. It does not provide a full set of functions like a full stack framework (such as database abstraction layer, user authentication system, etc.), but focuses on providing the most core functions, such as routing and request processing, allowing developers to more flexibly select and integrate other components.

Why use microframework?

When many people first start small projects or API services, they feel that using a full stack framework is too heavy, slow startup and many configurations, and it is difficult to learn. At this time the microframework comes in handy. Its advantages are:

• Fast startup, small resource occupancy
• The learning curve is smooth and easy to get started
• More free, not forcing you to use which libraries or structures
• Suitable for APIs, small websites, and prototype development

If you just want to write a simple backend interface or make a lightweight service, microframework is more suitable than a full-stack framework like Laravel.

What are the common PHP microframeworks?

The most popular PHP microframeworks on the market include:

• Slim : Very classic, well-documented, suitable for getting started and practical use
• Lumen : The micro-framework produced by the Laravel team has good performance and is suitable for those who are familiar with the Laravel ecosystem.
• Silex : Although the official no longer maintains it, it once had a great impact.
• Flight : Minimalist style, suitable for small projects that only want to handle basic requests

Although these frameworks are "small", they all support basic functions such as middleware, routing definition, request response processing, etc.

How to use microframework? Give an example

Taking Slim as an example, a basic "Hello World" page only requires a few steps:

1. Installation: Install slim/slim package through Composer
2. Set up routing: define access path and corresponding processing functions
3. Start the application: Run the App instance

The code is probably like this:

 require 'vendor/autoload.php';

$app = new \Slim\App();

$app->get('/hello', function ($request, $response) {
    return $response->write("Hello World");
});

$app->run();

This is the typical usage of microframework: simple, direct, and without extras.

Is the microframe suitable for me?

A microframework may be suitable if your project meets the following characteristics:

? You only need to do APIs or small sites ? Want to control dependencies and component selection ? Don't need complex user permission systems, ORMs and other functions ? Hope to deploy faster and run lighter

However, if you want to build medium and large applications, or if you need to use many ready-made modules (such as background management, user login, payment system, etc.), it is recommended to use a full stack framework like Laravel.

Basically that's it. Microframework is not omnipotent, but it is really convenient in the right scenario.

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