Serverless architecture in PHP

With the rise of cloud computing and microservices, more and more software architectures adopt serverless architecture, and PHP is no exception. Serverless architecture achieves the advantages of high scalability, low operation and maintenance costs, and flexibility by spreading application code into multiple stateless functions. This article will introduce serverless architecture in PHP and how to run PHP in AWS Lambda.

1. What is server less architecture

Server less architecture is a software architecture pattern in which applications run as stateless functions. Functions The code is managed and deployed by the cloud provider. This means developers don’t have to manage the application’s infrastructure, and service providers such as AWS Lambda and Azure Functions provide fully managed environments.

Server-less computing provides a highly flexible way to run and scale applications because functions can be finely configured and optimized, calling functions only when needed and paying only for the calculations actually performed. time. This model also helps improve the scalability of the application as it can be scaled up to an almost unlimited number of nodes to meet high load demands.

2. Advantages of server-less architecture

Server-less architecture has the following advantages:

• Low cost: developers pay only what is needed to execute the code overhead, without taking into account server uptime, infrastructure, or any other fixed costs. You don't have to worry about server costs.
• Scalability: Server-less computing allows applications to scale horizontally when needed, so applications developed based on this architecture can easily scale to any size.
• Simplified operation and maintenance: Developers don’t have to worry about managing servers, operating systems, network management, etc. The cloud service provider takes care of this task, allowing developers to focus on writing code.
• Fast startup time: Because the service provider has provided the infrastructure to manage the application, developers can quickly launch and deploy applications.
• Highly scalable: AWS Lambda and other serverless computing services automatically scale to accommodate different workloads without any developer intervention.

3. Running PHP in AWS Lambda

AWS Lambda provides the ability to run PHP. Compared to other programming languages, using AWS Lambda can reduce the maintenance costs and hardware costs of PHP applications.

AWS Lambda’s PHP support is built on PHP FPM and PHP7.4. PHP FPM is the FastCGI process manager that runs PHP code. PHP FPM (Swoole) can handle high concurrent requests on the same machine and improve code execution efficiency.

To use AWS Lambda to run a PHP application, you need to complete the following steps:

• Create a function: Use the Alibaba Cloud Server less management console to create a new AWS Lambda function.
• Configure the running environment: Select the runtime environment for running PHP. AWS Lambda supports the PHP7.4 version environment.
• Upload code: Package the PHP application as a ZIP file and upload it to AWS Lambda. This can be done through the AWS CLI or AWS Management Console.
• Configure triggers: Configure triggers, such as API gateway, so that AWS Lambda can handle HTTP requests.

4. Applicable scenarios of server-less architecture

The server-less architecture is particularly suitable for the following situations:

• Short-term computing tasks, For example, data processing or image processing
• Applications with difficult to predict scalability, such as the social media website hosted by Reddit
• Shareable functions and services, such as message queues and other API services
• Temporary projects or other rapidly developed projects

5. Conclusion

In PHP, serverless architecture can bring many advantages, such as per- Run tens of millions of requests per second and handle millions of requests. Running php applications in AWS Lambda simply requires you to upload your code and let AWS automatically manage and scale your environment. If you are looking for a scalable technology to run PHP applications, a serverless approach may be worth considering.

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