How to deal with persistence and data management in PHP backend API development

How to handle persistence and data management in PHP back-end API development

With the continuous development of Internet technology, the demand for Web applications is getting higher and higher. Compared with the previous static websites, dynamic websites require There are more and more back-end development resources and they are becoming more and more mature. Data management and persistence are one of the cores of back-end development.

In PHP back-end development, dealing with data management and persistence is a crucial issue. This article will use this as the main content to introduce in detail how to handle the storage and management of data reasonably, and how PHP code obtains data and changes data through these mechanisms. We will elaborate on it from the following three aspects:

1. Database management

We know that the database is a mechanism for storing large amounts of data. We often use relationships in web applications. type database. In PHP, many database operations are completed through database extensions or frameworks, such as PDO and MySQLi extensions. These extensions provide corresponding APIs to handle database operations such as connections, queries, and transactions, making it easier for PHP code to interact with the database.

When using any kind of database, we must ensure that the database has been installed and configured normally. In addition, we need to archive the database so that the data can be restored in the event of a database failure. We can also decouple the database from the server so it can be shared between multiple applications.

2. Persistence

Persistence refers to storing data on disk so that the data can be retained after the program is closed or the computer is restarted. In PHP, we can use a variety of technologies to achieve persistence, such as files, databases, memory objects, etc.

The method of using files to achieve persistence is very simple, just write the data to the file. However, the file system does not support high concurrency and distributed operations, so it is not suitable for large-scale web applications.

Database persistence requires us to use a database to store data. This method supports high concurrency and also provides mechanisms such as transactions and locking.

Memory object persistence stores data in memory, which is easy to read and modify, but is not suitable for saving long-term data.

When choosing a persistence method, you should choose it based on business needs.

3. Data management

Data management refers to operations such as reading, modifying, and deleting data in the database, including all database operations. Data management can be achieved by using an ORM (Object Relational Mapping) framework. The ORM framework provides a unified programming interface that maps database tables into object-oriented classes. Programmers can use these classes to read and modify the database.

The advantage of the ORM framework is that it can simplify the writing of SQL statements and optimize SQL queries.

In PHP, commonly used ORM frameworks include Doctrine, Eloquent, etc.

When conducting data management, we also need to pay attention to data validity and security. We must ensure that input parameters do not contain malicious content, use data validation mechanisms to ensure data validity, and use encryption mechanisms to ensure data security.

Conclusion

When developing PHP back-end API, dealing with persistence and data management is an essential part. We should rationally select technologies such as databases, persistence methods, and ORM frameworks based on business needs to ensure the efficiency, security, and reliability of data management. At the same time, we should also pay attention to data validity and security to ensure that our applications are not maliciously attacked.

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