What are the uses of php8

php8 is useful in performance, type inference, named parameters, union types, properties, error handling, asynchronous programming, new standard libraries and security. Detailed introduction: 1. Performance improvement. PHP8 has achieved significant improvements in performance. It uses a more efficient JIT compiler, which can compile and optimize some high-frequency execution codes and improve running speed. According to PHP official Test data shows that the performance of PHP8 is 10% to 15% higher than that of PHP7.4, for large applications and servers that need to handle a large number of requests, etc.

The operating system of this tutorial: Windows 10 system, PHP8.1.3 version, DELL G3 computer.

PHP 8 is the latest version of the PHP programming language, which brings many useful new features and performance improvements. In this article, I will detail some of the main uses of PHP 8.

1. Performance improvement

PHP 8 has achieved significant improvements in performance. It uses a more efficient JIT (Just-In-Time) compiler, which can compile and optimize some frequently executed codes to improve running speed. According to PHP official test data, the performance of PHP 8 is 10% to 15% higher than that of PHP 7.4. This is a very attractive feature for large applications and web servers that need to handle a large number of requests.

2. Type inference

PHP 8 introduces the type inference function, allowing developers to automatically deduce the type of variables when declaring variables. This feature can help developers write type-safe code more easily and reduce potential errors and vulnerabilities. At the same time, type derivation can also improve the readability and maintainability of code.

3. Named parameters

PHP 8 introduced the named parameter function, allowing developers to call functions by parameter name instead of parameter order. This feature can improve code readability and maintainability, especially when dealing with complex function calls.

4. Union types

PHP 8 introduces the union types function, allowing a variable to have multiple types at the same time. This feature simplifies type checking and type conversion, reducing potential errors and vulnerabilities.

5. Attributes

PHP 8 introduced the attribute function, allowing developers to add metadata to classes and methods. This feature can improve code readability and maintainability, while also supporting more language features such as reflection and decorators.

6. Error handling

PHP 8 improves the error handling mechanism and introduces a new ErrorException class and try-catch-finally statement. This feature makes it easier to handle exceptions and errors and improves the robustness of your code.

7. Asynchronous programming

PHP 8 introduces the asynchronous programming function, allowing developers to write non-blocking code and improve the concurrency performance of the program. This feature is especially important for web applications that handle high concurrency.

8. New standard library

PHP 8 introduces many new standard library functions, such as array_column(), count_if(), is_same_size(), etc. These new functions make it easier to handle arrays and collection data, making your code more readable and maintainable.

9. Better security

PHP 8 has also made many improvements in security, such as removing the unsafe magic quotes function and improving input validation. These improvements can reduce the risk of attacks on applications.

Summary

PHP 8 has made many useful improvements in performance, type deduction, named parameters, union types, properties, error handling, asynchronous programming, new standard library and security. . These improvements can improve developers' development efficiency, improve code readability, maintainability and robustness, and can also better support complex applications and scenarios. Therefore, PHP 8 is a version worth paying attention to and using for existing PHP developers and developers who are about to join the PHP community.

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