How much faster is php8 than php7?

PHP 8 has a performance improvement of approximately 2 to 5 times compared to PHP 7, mainly due to optimization measures such as the JIT compiler, type declaration optimization, union type support, NULL coalescing operator, and Fiber support. It brings significant improvements in page loading, database query, concurrent processing and memory consumption.

How much faster is PHP 8 compared to PHP 7?

PHP 8 has a significant improvement in speed compared to PHP 7, with an average performance improvement of about 2 to 5 times.

Specific improvement factors

• JIT compiler: PHP 8 introduces the Just-In-Time (JIT) compiler, which can Dynamically compile PHP code into machine code, thereby significantly improving execution efficiency.
• Type declaration optimization: PHP 8 enforces stricter type declarations, which allows the PHP interpreter to optimize code more accurately.
• Union type support: PHP 8 allows the use of union types, which can reduce the overhead of type conversion in the code.
• NULL Coalescing Operator (??): PHP 8 introduced the ?? operator to handle null values ​​more efficiently, thus improving performance.
• Fiber Support: PHP 8 adds support for Fiber, allowing multiple lightweight tasks to be executed concurrently, thereby increasing overall throughput.

Impact in actual application

In actual application, the speed improvement of PHP 8 is reflected in various aspects:

• Shortened page loading time: Due to the improvement in PHP code execution efficiency, Web page loading time will be significantly shortened.
• Database query optimization: The JIT compiler can optimize database queries, thereby reducing server response time.
• Concurrency processing enhancement: Fiber support can improve the server's ability to handle concurrent requests, thereby improving the scalability of the website.
• Reduced memory consumption: The JIT compiler can reduce the number of memory allocations, thereby reducing the memory consumption of the application.

Overall, the speed improvements in PHP 8 compared to PHP 7 are significant, enabling web developers to create faster, more responsive, and scalable applications.

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