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[Utility & Helpers](/categories/utility) 4. / 5. jayeshmepani/swiss-ephemeris-ffi ActiveLibrary[Utility & Helpers](/categories/utility) jayeshmepani/swiss-ephemeris-ffi ================================ Complete 100% 1:1 PHP FFI Wrapper for the Swiss Ephemeris C Library - Direct C function calls with zero abstraction for maximum astronomical precision v1.1.1(1mo ago)3365↑175.8%2AGPL-3.0-or-laterPHPPHP ^8.3CI passing Since Mar 24Pushed 1mo agoCompare [ Source](https://github.com/jayeshmepani/Swiss-Ephemeris-PHP)[ Packagist](https://packagist.org/packages/jayeshmepani/swiss-ephemeris-ffi)[ Docs](https://github.com/jayeshmepani/Swiss-Ephemeris-PHP)[ GitHub Sponsors](https://github.com/sponsors/jayeshmepani)[ RSS](/packages/jayeshmepani-swiss-ephemeris-ffi/feed)WikiDiscussions main Synced 3w ago READMEChangelog (4)Dependencies (14)Versions (4)Used By (2) Swiss Ephemeris PHP FFI ======================= [](#swiss-ephemeris-php-ffi) [![PHP Version](https://camo.githubusercontent.com/5db4c076eff39ebe4683c5e75fe00adef8f907d7313e4ee39f395725a4777c8b/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f7068702d762f6a61796573686d6570616e692f73776973732d657068656d657269732d666669)](https://packagist.org/packages/jayeshmepani/swiss-ephemeris-ffi)[![License](https://camo.githubusercontent.com/df7a3e612c98bca541e286e40aaa1bfbac3211d25e32181fd997e7473e26a90a/68747470733a2f2f696d672e736869656c64732e696f2f6769746875622f6c6963656e73652f6a61796573686d6570616e692f53776973732d457068656d657269732d504850)](LICENSE)[![Latest Version on Packagist](https://camo.githubusercontent.com/9a008d5210beed330dc6be46ba671a2aae632521fc5194057e0613d7e45631e2/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f762f6a61796573686d6570616e692f73776973732d657068656d657269732d6666692e7376673f7374796c653d666c61742d737175617265)](https://packagist.org/packages/jayeshmepani/swiss-ephemeris-ffi)[![Total Downloads](https://camo.githubusercontent.com/3afe2de393cb06d3314717176ced3c7e705a8a94d052fea55c86d4b4615c35ba/68747470733a2f2f696d672e736869656c64732e696f2f7061636b61676973742f64742f6a61796573686d6570616e692f73776973732d657068656d657269732d6666692e7376673f7374796c653d666c61742d737175617265)](https://packagist.org/packages/jayeshmepani/swiss-ephemeris-ffi) PHP 8.3+ FFI wrapper for the Swiss Ephemeris C library. This package is designed to expose the Swiss Ephemeris C API to PHP through FFI, without shelling out to the `swetest` command-line tool. **Zero abstraction. Native-level FFI. Verified output parity with Swiss Ephemeris C engine.** > Swiss Ephemeris PHP FFI provides a zero-abstraction, 1:1 mapping of the native Swiss Ephemeris C library. All 106 public API functions are exposed with complete constant and signature parity. > > The wrapper performs no additional calculations, transformations, or rounding, ensuring direct memory-level interaction with the C engine. > > Outputs are verified against the official `swetest` CLI using automated PHPUnit tests, demonstrating bit-level parity in verified test scenarios for planetary positions, house systems, eclipses, and edge-date calculations. Latest Upstream Status ---------------------- [](#latest-upstream-status) Checked against upstream on **April 25, 2026**. - **Latest upstream release tag**: `v2.10.3final` released on **April 14, 2026**. - **Current upstream `master` checked**: commit `2f18c14` from **April 18, 2026** (`fixed bug in semo4200.se1`). - **Swiss Ephemeris 3.0**: announced by upstream as the next major source-code release, but no public `v3.0` tag was available at the time of this check. - **DE441 data update**: upstream states that, as of **April 14, 2026**, all `.se1` data files for planets and asteroids were rebuilt with JPL Ephemeris DE441. - **Compatibility note**: upstream states that the rebuilt `.se1` files remain compatible with older Swiss Ephemeris versions at least back to release 1.67. - **Asteroid data**: upstream documents more than **760,000 numbered asteroids** and more than **25,000 named asteroids**. Commit history also records asteroid list updates through numbered asteroid `793066`. - **Internal Swiss Ephemeris version string**: the upstream C header still defines `SE_VERSION` as `2.10.03`. See [`VERSION.md`](VERSION.md) and [`UPSTREAM_SYNC.md`](UPSTREAM_SYNC.md) for detailed version tracking. Requirements ------------ [](#requirements) - PHP `^8.3` - PHP FFI extension (`ext-ffi`) - FFI enabled in PHP configuration. Depending on your environment, this usually means setting `ffi.enable=true`, or configuring FFI preload mode correctly. Installation ------------ [](#installation) ``` composer require jayeshmepani/swiss-ephemeris-ffi ``` Quick Start ----------- [](#quick-start) ``` use SwissEph\FFI\SwissEphFFI; $sweph = new SwissEphFFI(); $jd = $sweph->swe_julday(2000, 1, 1, 12.0, SwissEphFFI::SE_GREG_CAL); $xx = $sweph->getFFI()->new("double[6]"); $serr = $sweph->getFFI()->new("char[256]"); $result = $sweph->swe_calc_ut( $jd, SwissEphFFI::SE_SUN, SwissEphFFI::SEFLG_SPEED, $xx, $serr ); if ($result >= 0) { echo "Sun Longitude: " . $xx[0] . "°\n"; } else { echo "Swiss Ephemeris error: " . $sweph->getFFI()->string($serr) . "\n"; } ``` Performance Audit ----------------- [](#performance-audit) We have conducted a rigorous side-by-side benchmark comparing this FFI implementation against the native `php-sweph` C-extension. **[View the Interactive Performance Audit →](https://jayeshmepani.github.io/Swiss-Ephemeris-PHP/benchmark/benchmark.html)** The audit demonstrates **bit-perfect accuracy** and highly competitive performance across all 106 Swiss Ephemeris functions. Documentation ------------- [](#documentation) **[Read the full documentation →](https://jayeshmepani.github.io/Swiss-Ephemeris-PHP/)** The documentation covers: - Installation on Linux, macOS, and Windows - FFI configuration - Ephemeris file setup - Swiss Ephemeris API usage - Examples for tropical, sidereal, and house calculations - Laravel integration - Troubleshooting Verification Sources -------------------- [](#verification-sources) - Upstream repository: - Upstream releases: - Upstream compare: - Packagist package: - PHP FFI configuration: - Swiss Ephemeris official information: [https://www.astro.com/swisseph/swephinfo\_e.htm](https://www.astro.com/swisseph/swephinfo_e.htm) License ------- [](#license) This package metadata declares **AGPL-3.0-or-later**. The upstream Swiss Ephemeris C library and ephemeris data are distributed under Astrodienst's dual licensing model: **AGPL** or **Swiss Ephemeris Professional License**. If you use Swiss Ephemeris in commercial or closed-source software, or in a public SaaS/web service, review Astrodienst's license terms before use. ### Health Score 46 — FairBetter than 92% of packages Maintenance89 Actively maintained with recent releases Popularity21 Limited adoption so far Community12 Small or concentrated contributor base Maturity51 Maturing project, gaining track record Bus Factor1 Top contributor holds 72.7% 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 ~19 days Total 3 Last Release 56d ago ### Community Maintainers ![](https://www.gravatar.com/avatar/32cb5a476cac8bc43ffdf0769601a7425bc7ada6ec2291ee47c87441469035f0?d=identicon)[jayeshmepani](/maintainers/jayeshmepani) --- Top Contributors [![jayeshmepani](https://avatars.githubusercontent.com/u/112438589?v=4)](https://github.com/jayeshmepani "jayeshmepani (24 commits)")[![github-actions[bot]](https://avatars.githubusercontent.com/in/15368?v=4)](https://github.com/github-actions[bot] "github-actions[bot] (9 commits)") --- Tags astrologyastronomical-calculationsastronomyayanamsacomposereclipseephemerisffihoroscopehousesjyotishkundlilaravelphpphp-libraryplanetary-positionssiderealswiss-ephemerisvedic-astrologyzodiaclaravel-packagePHP LibraryEclipseffihoroscopeastrologyastronomyephemerisjyotishvedic astrologyphp-ffihouseskundliswiss-ephemerisastrology-apibirth-chartplanetary-positionsayanamsasiderealtropical ### Code Quality TestsPHPUnit Static AnalysisPHPStan, Rector Code StyleLaravel Pint Type Coverage Yes ### Embed Badge ![Health badge](/badges/jayeshmepani-swiss-ephemeris-ffi/health.svg) ``` [![Health](https://phpackages.com/badges/jayeshmepani-swiss-ephemeris-ffi/health.svg)](https://phpackages.com/packages/jayeshmepani-swiss-ephemeris-ffi) ``` ### Alternatives [realrashid/sweet-alert Laravel Sweet Alert Is A Package For Laravel Provides An Easy Way To Display Alert Messages Using The SweetAlert2 Library. 1.2k3.1M22](/packages/realrashid-sweet-alert)[ashallendesign/short-url A Laravel package for creating shortened URLs for your web apps. 1.4k2.2M5](/packages/ashallendesign-short-url)[lodash-php/lodash-php A port of Lodash to PHP 524741.7k5](/packages/lodash-php-lodash-php)[phalcon/ide-stubs The most complete Phalcon Framework IDE stubs library which enables autocompletion in modern IDEs. 1643.2M128](/packages/phalcon-ide-stubs)[intervention/zodiac Zodiac Sign Calculator 57198.1k](/packages/intervention-zodiac)[imanghafoori/laravel-nullable A package to help you write expressive defensive code in a functional manner 151461.3k6](/packages/imanghafoori-laravel-nullable) PHPackages © 2026 [Directory](/)[Categories](/categories)[Trending](/trending)[Changelog](/changelog)[Analyze](/analyze)