PHPackages                             solarwinds/apm\_ext - PHPackages - PHPackages  [Skip to content](#main-content)[PHPackages](/)[Directory](/)[Categories](/categories)[Trending](/trending)[Leaderboard](/leaderboard)[Changelog](/changelog)[Analyze](/analyze)[Collections](/collections)[Log in](/login)[Sign up](/register)

1. [Directory](/)
2. /
3. [Utility & Helpers](/categories/utility)
4. /
5. solarwinds/apm\_ext

ActivePhp-ext[Utility & Helpers](/categories/utility)

solarwinds/apm\_ext
===================

C extension for solarwinds/apm

2.0.0(2mo ago)0114↓91.2%Apache-2.0PHPPHP ^8.0CI passing

Since Mar 12Pushed 2mo agoCompare

[ Source](https://github.com/solarwinds/apm-php-ext)[ Packagist](https://packagist.org/packages/solarwinds/apm_ext)[ RSS](/packages/solarwinds-apm-ext/feed)WikiDiscussions main Synced today

READMEChangelog (2)DependenciesVersions (4)Used By (0)

apm-php-ext
===========

[](#apm-php-ext)

[![Packagist Version](https://camo.githubusercontent.com/dd012f1be40f41a159ef1e301f1475959be282fc1769917a3b495a9f1a0d0899/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f736f6c617277696e64732f61706d5f657874)](https://camo.githubusercontent.com/dd012f1be40f41a159ef1e301f1475959be282fc1769917a3b495a9f1a0d0899/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f736f6c617277696e64732f61706d5f657874)[![Packagist Downloads](https://camo.githubusercontent.com/6341e8b9e3bffec45803534b98ac1a6a194d85440a90b09076d1475dd5baee7f/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f646d2f736f6c617277696e64732f61706d5f657874)](https://camo.githubusercontent.com/6341e8b9e3bffec45803534b98ac1a6a194d85440a90b09076d1475dd5baee7f/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f646d2f736f6c617277696e64732f61706d5f657874)[![Build](https://github.com/solarwinds/apm-php-ext/actions/workflows/build.yml/badge.svg)](https://github.com/solarwinds/apm-php-ext/actions/workflows/build.yml)[![GitHub License](https://camo.githubusercontent.com/8affc8fd0eebafc4dcb5faaa32e79b110afaea5a64718a28c2a44f2ccdddf515/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f736f6c617277696e64732f61706d2d7068702d657874)](https://camo.githubusercontent.com/8affc8fd0eebafc4dcb5faaa32e79b110afaea5a64718a28c2a44f2ccdddf515/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f736f6c617277696e64732f61706d2d7068702d657874)

Overview
--------

[](#overview)

solarwinds/apm\_ext is an add-on PHP extension to [solarwinds/apm](https://packagist.org/packages/solarwinds/apm), used to cache the sampling settings and the token bucket state for the APM library.

Requirements
------------

[](#requirements)

- PHP 8+
- [pie](https://github.com/php/pie)

Installation
------------

[](#installation)

You can install the extension as follows:

### php-extension-installer

[](#php-extension-installer)

```
pie install solarwinds/apm_ext
```

Configuration
-------------

[](#configuration)

This extension can be configured via `.ini` by modifying the following entries:

ConfigurationDefaultDescriptionapm\_ext.cache\_max\_entries48Maximum number of entries in the cacheapm\_ext.settings\_max\_length2048Maximum length of the settings value in the cacheapm\_ext.bucket\_state\_cache\_max\_entries512Maximum number of entries in the bucket state cacheapm\_ext.bucket\_state\_max\_length2048Maximum length of the bucket state value in the bucket state cacheVerify that the extension is installed and enabled
--------------------------------------------------

[](#verify-that-the-extension-is-installed-and-enabled)

```
php --ri  apm_ext
```

Contributing
------------

[](#contributing)

We welcome contributions!

Thanks to all contributors: [![](https://camo.githubusercontent.com/242f19f62dfcb11ab44368384672638b30926f4635f63ce3334ba0c06d2663bb/68747470733a2f2f636f6e7472696275746f72732d696d672e7765622e6170702f696d6167653f7265706f3d736f6c617277696e64732f61706d2d7068702d657874)](https://github.com/solarwinds/apm-php-ext/graphs/contributors)

License
-------

[](#license)

Apache-2.0. See [LICENSE](./LICENSE) for details.

###  Health Score

37

—

LowBetter than 81% of packages

Maintenance83

Actively maintained with recent releases

Popularity11

Limited adoption so far

Community6

Small or concentrated contributor base

Maturity41

Maturing project, gaining track record

 Bus Factor1

Top contributor holds 100% of commits — single point of failure

How is this calculated?**Maintenance (25%)** — Last commit recency, latest release date, and issue-to-star ratio. Uses a 2-year decay window.

**Popularity (30%)** — Total and monthly downloads, GitHub stars, and forks. Logarithmic scaling prevents top-heavy scores.

**Community (15%)** — Contributors, dependents, forks, watchers, and maintainers. Measures real ecosystem engagement.

**Maturity (30%)** — Project age, version count, PHP version support, and release stability.

###  Release Activity

Cadence

Every ~27 days

Total

2

Last Release

87d ago

Major Versions

1.0.0 → 2.0.02026-04-08

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/8791493?v=4)[Jerry Leung](/maintainers/jerrytfleung)[@jerrytfleung](https://github.com/jerrytfleung)

---

Top Contributors

[![jerrytfleung](https://avatars.githubusercontent.com/u/8791493?v=4)](https://github.com/jerrytfleung "jerrytfleung (7 commits)")

### Embed Badge

![Health badge](/badges/solarwinds-apm-ext/health.svg)

```
[![Health](https://phpackages.com/badges/solarwinds-apm-ext/health.svg)](https://phpackages.com/packages/solarwinds-apm-ext)
```

###  Alternatives

[presseddigital/linkit

One link field to rule them all.

28165.7k](/packages/presseddigital-linkit)

PHPackages © 2026

[Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)