php-8-5

php-8-5

PHP Performance Benchmark 2026: 7.4 vs 8.0 vs 8.1 vs 8.2 vs 8.5

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PHP 7.4 reached its end of life in November 2022, yet many websites and applications still run on this aging version. While security is the primary reason to upgrade, performance is another compelling factor that often gets overlooked.

In this benchmark, we compare the latest PHP 8.5.2 against the final release of PHP 7.4 (7.4.33) using the same CPU‑intensive script from our first benchmark. The goal is simple: quantify the real‑world performance gain you can expect when finally making the leap from 7.4 to 8.5.

All tests are run on an isolated server with identical configuration – the same hardware, the same PHP‑FPM settings, and the same OPcache configuration (with JIT disabled to keep the focus on engine improvements).

PHP 8.5 with JIT: Does It Really Make Your Code Faster? (2026 Benchmark)

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PHP 8.0 introduced the JIT (Just‑In‑Time) compilation engine, a feature that promised to push PHP performance closer to compiled languages. With PHP 8.5 now the latest stable branch, JIT has matured and is enabled by default in many hosting environments. But the question remains: how much real‑world speedup does JIT actually deliver?

PHP 8.3 vs 8.4 vs 8.5: Real-World Performance Benchmark (2026)

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PHP 8.5 was released in late 2025, bringing new syntax features like the pipe operator (|>) and improved JIT compilation. But how much faster is it compared to PHP 8.3 and 8.4 in real-world scenarios?

I ran 1,000 requests with 15 concurrent users on identical hardware, testing CPU-intensive workloads (Fibonacci calculation + loop operations). The results show that PHP 8.5 offers modest improvements, while PHP 8.3 remains a solid choice for production.

This benchmark is fully reproducible—all test scripts and commands are included below.