PHPackages symfony/polyfill-php73 - 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. symfony/polyfill-php73 ActiveLibrary[Utility & Helpers](/categories/utility) symfony/polyfill-php73 ====================== Symfony polyfill backporting some PHP 7.3+ features to lower PHP versions v1.33.0(1y ago)2.4k581.8M—4%620MITPHPPHP >=7.2 Since Apr 26Pushed 3w ago5 watchersCompare [ Source](https://github.com/symfony/polyfill-php73)[ Packagist](https://packagist.org/packages/symfony/polyfill-php73)[ Docs](https://symfony.com)[ Fund](https://symfony.com/sponsor)[ GitHub Sponsors](https://github.com/fabpot)[ RSS](/packages/symfony-polyfill-php73/feed)WikiDiscussions 1.x Synced 1mo ago READMEChangelog (4)DependenciesVersions (31)Used By (20) Symfony Polyfill / Php73 ======================== [](#symfony-polyfill--php73) This component provides functions added to PHP 7.3 core: - [`array_key_first`](https://php.net/array_key_first) - [`array_key_last`](https://php.net/array_key_last) - [`hrtime`](https://php.net/function.hrtime) - [`is_countable`](https://php.net/is_countable) - [`JsonException`](https://php.net/JsonException) More information can be found in the [main Polyfill README](https://github.com/symfony/polyfill/blob/main/README.md). License ======= [](#license) This library is released under the [MIT license](LICENSE). ### Health Score 67 ↑ FairBetter than 100% of packages Maintenance69 Regular maintenance activity Popularity79 Solid adoption and visibility Community37 Small or concentrated contributor base Maturity69 Established project with proven stability Bus Factor1 Top contributor holds 54.5% 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 ~77 days Recently: every ~25 days Total 31 Last Release 616d ago PHP version history (3 changes)v1.8.0PHP >=5.3.3 v1.20.0PHP >=7.1 v1.31.0PHP >=7.2 ### 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 (24 commits)")[![fabpot](https://avatars.githubusercontent.com/u/47313?v=4)](https://github.com/fabpot "fabpot (3 commits)")[![IonBazan](https://avatars.githubusercontent.com/u/1985514?v=4)](https://github.com/IonBazan "IonBazan (3 commits)")[![pierredup](https://avatars.githubusercontent.com/u/144858?v=4)](https://github.com/pierredup "pierredup (2 commits)")[![GrahamCampbell](https://avatars.githubusercontent.com/u/2829600?v=4)](https://github.com/GrahamCampbell "GrahamCampbell (2 commits)")[![h4kuna](https://avatars.githubusercontent.com/u/335722?v=4)](https://github.com/h4kuna "h4kuna (1 commits)")[![jderusse](https://avatars.githubusercontent.com/u/578547?v=4)](https://github.com/jderusse "jderusse (1 commits)")[![kbond](https://avatars.githubusercontent.com/u/127811?v=4)](https://github.com/kbond "kbond (1 commits)")[![lyrixx](https://avatars.githubusercontent.com/u/408368?v=4)](https://github.com/lyrixx "lyrixx (1 commits)")[![azjezz](https://avatars.githubusercontent.com/u/29315886?v=4)](https://github.com/azjezz "azjezz (1 commits)")[![samnela](https://avatars.githubusercontent.com/u/1852108?v=4)](https://github.com/samnela "samnela (1 commits)")[![BackEndTea](https://avatars.githubusercontent.com/u/14289961?v=4)](https://github.com/BackEndTea "BackEndTea (1 commits)")[![baohx2000](https://avatars.githubusercontent.com/u/486322?v=4)](https://github.com/baohx2000 "baohx2000 (1 commits)")[![carusogabriel](https://avatars.githubusercontent.com/u/16328050?v=4)](https://github.com/carusogabriel "carusogabriel (1 commits)")[![Firtzberg](https://avatars.githubusercontent.com/u/8490119?v=4)](https://github.com/Firtzberg "Firtzberg (1 commits)") --- Tags compatibilitycomponentjavascriptpolyfillportableshimsymfonysymfony-componentsymfony-polyfillcompatibilityportablepolyfillshim ### Embed Badge ![Health badge](/badges/symfony-polyfill-php73/health.svg) ``` [![Health](https://phpackages.com/badges/symfony-polyfill-php73/health.svg)](https://phpackages.com/packages/symfony-polyfill-php73) ``` ### Alternatives [symfony/polyfill-mbstring Symfony polyfill for the Mbstring extension 7.8k1.2B515](/packages/symfony-polyfill-mbstring)[symfony/polyfill-php72 Symfony polyfill backporting some PHP 7.2+ features to lower PHP versions 4.7k674.7M31](/packages/symfony-polyfill-php72)[symfony/polyfill-intl-idn Symfony polyfill for intl's idn\_to\_ascii and idn\_to\_utf8 functions 3.4k774.6M90](/packages/symfony-polyfill-intl-idn)[symfony/polyfill-intl-normalizer Symfony polyfill for intl's Normalizer class and related functions 2.1k830.2M36](/packages/symfony-polyfill-intl-normalizer)[symfony/polyfill-php80 Symfony polyfill backporting some PHP 8.0+ features to lower PHP versions 1.7k815.2M457](/packages/symfony-polyfill-php80)[symfony/polyfill-intl-grapheme Symfony polyfill for intl's grapheme\_\* functions 1.7k702.8M27](/packages/symfony-polyfill-intl-grapheme) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)