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symfony/polyfill-php54
======================

Symfony polyfill backporting some PHP 5.4+ features to lower PHP versions

v1.20.0(5y ago)9630.8M↑12.8%5MITPHP >=7.1

Since Nov 4Pushed 2y ago3 watchersCompare

[ Source](https://github.com/symfony/polyfill-php54)[ Packagist](https://packagist.org/packages/symfony/polyfill-php54)[ Docs](https://symfony.com)[ Fund](https://symfony.com/sponsor)[ GitHub Sponsors](https://github.com/fabpot)[ RSS](/packages/symfony-polyfill-php54/feed)WikiDiscussions 1.x Synced 1mo ago

READMEChangelogDependenciesVersions (29)Used By (5)

Symfony Polyfill / Php54
========================

[](#symfony-polyfill--php54)

This component provides functions unavailable in releases prior to PHP 5.4:

- [`trait_exists`](https://php.net/trait_exists)
- [`class_uses`](https://php.net/class_uses)
- [`hex2bin`](https://php.net/hex2bin)
- [`session_register_shutdown`](https://php.net/session_register_shutdown)

More information can be found in the [main Polyfill README](https://github.com/symfony/polyfill/blob/master/README.md).

License
=======

[](#license)

This library is released under the [MIT license](LICENSE).

###  Health Score

47

—

FairBetter than 94% of packages

Maintenance20

Infrequent updates — may be unmaintained

Popularity58

Moderate usage in the ecosystem

Community25

Small or concentrated contributor base

Maturity69

Established project with proven stability

 Bus Factor1

Top contributor holds 55.6% 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 ~65 days

Recently: every ~25 days

Total

29

Last Release

2033d ago

PHP version history (2 changes)v1.0.0PHP >=5.3.3

v1.20.0PHP >=7.1

### Community

Maintainers

![](https://avatars.githubusercontent.com/u/47313?v=4)[Fabien Potencier](/maintainers/fabpot)[@fabpot](https://github.com/fabpot)

---

Top Contributors

[![nicolas-grekas](https://avatars.githubusercontent.com/u/243674?v=4)](https://github.com/nicolas-grekas "nicolas-grekas (20 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (3 commits)")[![fuhry](https://avatars.githubusercontent.com/u/1379912?v=4)](https://github.com/fuhry "fuhry (1 commits)")[![GrahamCampbell](https://avatars.githubusercontent.com/u/2829600?v=4)](https://github.com/GrahamCampbell "GrahamCampbell (1 commits)")[![IonBazan](https://avatars.githubusercontent.com/u/1985514?v=4)](https://github.com/IonBazan "IonBazan (1 commits)")[![JakeFr](https://avatars.githubusercontent.com/u/5176129?v=4)](https://github.com/JakeFr "JakeFr (1 commits)")[![jeroenvisser101](https://avatars.githubusercontent.com/u/1941348?v=4)](https://github.com/jeroenvisser101 "jeroenvisser101 (1 commits)")[![keradus](https://avatars.githubusercontent.com/u/2716794?v=4)](https://github.com/keradus "keradus (1 commits)")[![lyrixx](https://avatars.githubusercontent.com/u/408368?v=4)](https://github.com/lyrixx "lyrixx (1 commits)")[![robfrawley](https://avatars.githubusercontent.com/u/3967713?v=4)](https://github.com/robfrawley "robfrawley (1 commits)")[![samnela](https://avatars.githubusercontent.com/u/1852108?v=4)](https://github.com/samnela "samnela (1 commits)")[![stof](https://avatars.githubusercontent.com/u/439401?v=4)](https://github.com/stof "stof (1 commits)")[![azjezz](https://avatars.githubusercontent.com/u/29315886?v=4)](https://github.com/azjezz "azjezz (1 commits)")[![wouterj](https://avatars.githubusercontent.com/u/749025?v=4)](https://github.com/wouterj "wouterj (1 commits)")[![carusogabriel](https://avatars.githubusercontent.com/u/16328050?v=4)](https://github.com/carusogabriel "carusogabriel (1 commits)")

---

Tags

componentphppolyfillsymfonysymfony-componentcompatibilityportablepolyfillshim

### Embed Badge

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