HHVM VS php eventloop

Compare HHVM VS php eventloop and see what are their differences

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HHVM

HHVM is an open-source virtual machine designed for executing programs written in Hack and PHP.

php eventloop

a simple non blocking and async event loop written in php

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2022-03-13

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2023-07-27

HHVM

Website: hhvm.com
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php eventloop

Website: github.com
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HHVM features and specs

Performance
HHVM uses Just-In-Time (JIT) compilation to convert PHP code into machine code, which can significantly improve execution speed compared to traditional PHP interpreters.
Hack Language Support
HHVM supports the Hack programming language, which offers additional features like static type checking, generics, and asynchronous code execution, allowing developers to write safer and more efficient code.
Scalability
HHVM is designed to handle high-traffic environments, making it suitable for large-scale applications and websites with high concurrency demands.
Open Source
HHVM is open-source software, allowing developers to contribute to its development and benefit from community-driven improvements and support.

Possible disadvantages of HHVM

Compatibility
HHVM is not fully compatible with all PHP extensions and libraries. This can create issues when migrating existing PHP applications to HHVM, requiring additional refactoring.
Resource Intensive
HHVM can consume more memory and CPU resources than traditional PHP interpreters, which might be a concern for applications running on limited hardware.
Linux Focused
HHVM primarily supports Linux-based systems. While there is some support for other operating systems, it may not be as robust, limiting its use in heterogeneous environments.
Evolving Technology
HHVM and the Hack language are continuously evolving, which can lead to breaking changes and the need to keep development teams updated with the latest features and fixes.

php eventloop features and specs

Simple and lightweight
The library provides a minimalistic implementation of an event loop in PHP, making it easy to understand and integrate into small projects without heavy dependencies.
Educational value
As a straightforward PHP event loop implementation, it serves as a great learning resource for developers wanting to understand how event loops and asynchronous programming concepts work under the hood in PHP.
Non-blocking I/O support
The library enables non-blocking I/O operations in PHP, allowing developers to handle multiple tasks concurrently without relying on multi-threading, which PHP does not natively support well.
Timer and periodic task support
It provides built-in support for timers and periodic tasks, enabling developers to schedule recurring operations or delayed execution within the event loop.
Pure PHP implementation
The library is written in pure PHP without requiring external C extensions, making it portable and easy to install across different PHP environments without special compilation steps.

Possible disadvantages of php eventloop

Limited community and support
The project has a very small community with minimal stars, forks, and contributors on GitHub, which means limited peer support, fewer bug reports, and potentially slower issue resolution.
Not production-ready
Given its small scale and limited adoption, the library may not be battle-tested enough for production environments where reliability, performance, and stability are critical.
Limited features compared to alternatives
More established PHP async libraries like ReactPHP, AmpPHP, and others offer far more comprehensive ecosystems with HTTP servers, database clients, and stream handling that this library lacks.
Performance limitations
Being a pure PHP implementation without leveraging extensions like ev, libuv, or swoole, the event loop may suffer from performance bottlenecks compared to extension-backed alternatives when handling high concurrency.
Poor documentation
The repository has minimal documentation and examples, making it difficult for new users to understand the full API, edge cases, and best practices for using the library effectively.

Analysis of HHVM

Overall verdict

In recent years, HHVM has shifted focus more towards supporting Hack rather than full PHP compatibility. While it was once a popular option for running PHP applications efficiently, many projects now recommend sticking to PHP 7.x or later, which has seen significant performance improvements. Therefore, HHVM is considered good if you're specifically using Hack, but might not be the best choice for standard PHP applications.

Why this product is good

HHVM (HipHop Virtual Machine) was originally developed by Facebook to provide improved performance for PHP applications. It offers features like a just-in-time (JIT) compiler and compatibility with Hack, Facebook's PHP dialect. It has been praised for enhancing the speed of PHP execution, particularly for large-scale applications.

Recommended for

HHVM is recommended for organizations or projects that primarily use Hack or have legacy systems built around it. It can also be beneficial for enterprises looking to leverage its performance benefits in a Hack environment. However, for new projects or those focused solely on PHP, sticking with the latest PHP versions is advisable.

Analysis of php eventloop

Overall verdict

php-eventloop is a lightweight event loop implementation for PHP that provides a solid, minimalistic solution for developers wanting to implement asynchronous, non-blocking behavior without adopting a full framework like ReactPHP or Amp. It's good for learning purposes and simpler use cases, though it lacks the extensive ecosystem, tooling, and production hardening of more established async libraries.

Why this product is good

Lightweight and simple to understand, making it easy to integrate into small projects
Useful for learning how event loops work under the hood in PHP
Minimal dependencies compared to larger async frameworks
Open source and available for inspection/modification on GitHub
Can be a good starting point for building custom async solutions

Recommended for

Developers learning about event-driven programming in PHP
Small projects needing basic async functionality without heavy dependencies
Educational purposes and understanding event loop internals
Prototyping simple non-blocking I/O operations
Developers who want full control over a minimal event loop implementation

HHVM videos

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Category Popularity

0-100% (relative to HHVM and php eventloop)

HHVM

php eventloop

DevOps Tools

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DevOps Tools

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Eventloop

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Eventloop

100% 100

Continuous Integration And Delivery

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Continuous Integration And Delivery

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JavaScript

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JavaScript

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User comments

Share your experience with using HHVM and php eventloop. For example, how are they different and which one is better?

Social recommendations and mentions

Based on our record, HHVM seems to be more popular. It has been mentiond 7 times since March 2021. We are tracking product recommendations and mentions on various public social media platforms and blogs. They can help you identify which product is more popular and what people think of it.

HHVM mentions (7)

GraphQL vs REST: 18 Claims Fact-Checked with Primary Sources (2026)
Facebook ran a massive PHP codebase, scaled through HipHop (a PHP-to-C++ transpiler) and later HHVM (a just-in-time compiler for PHP). Keith Adams , Facebook's Chief Architect and HHVM team lead, describes how Facebook scaled a large, unified PHP application in Software Engineering Daily interviews and InfoQ presentations . - Source: dev.to / 4 months ago
THT v0.8.1 – A modern re-design of PHP
$hayStack.contains('needle') This looks more or less like a new language ? It must be amazing amount of time and energy to rewrite PHP in to this. I don't see the benefits. I understand the Facebook's HHVM had some. (https://hhvm.com/) Or Swoole (https://openswoole.com/) has it. But I'm not clear of THT (also typical apple vs oranges benchamrkTM included). 2cents. - Source: Hacker News / almost 2 years ago
I know that's the name of the language, I'm asking about the first P
PHP is nearly as old as the web. Change the conversation and say: I use Hack on the Hip Hop Virtual Machine. Source: over 4 years ago
Nvidia is now worth more than Meta
Meta has created/maintains ReactJS, Zstandard, IO_Uring, PyTorch, HHVM, is a member of Rust foundation, and that's only the things I know about. They've literally made the Web and Linux better and faster. Source: over 4 years ago
does a php-like Typescript exist?
Have you looked into Hacklang / HHVM at all. Source: over 4 years ago