Swiss Ephemeris PHP FFI — 106 Functions Complete Mapping

composer require jayeshmepani/swiss-ephemeris-ffi

extension=ffi
ffi.enable=1

<?php
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
);

echo "Sun Longitude: " . $xx[0] . "°\n";
echo "Sun Speed: " . $xx[3] . "°/day\n";

composer require jayeshmepani/swiss-ephemeris-ffi

extension=ffi
ffi.enable=1

'providers' => [
    SwissEph\Service\SwissEphServiceProvider::class,
],
'aliases' => [
    'SwissEph' => SwissEph\Service\SwissEphFacade::class,
]

$jd = SwissEph::swe_julday(2000, 1, 1, 12.0, SwissEph::SE_GREG_CAL);

# Install PHP FFI
sudo apt install php8.3-ffi

# Or for PHP 8.4
sudo apt install php8.4-ffi

sudo dnf install php-ffi
# or
sudo yum install php-ffi

# PHP from Homebrew includes FFI by default
brew install php@8.3

php -r "echo extension_loaded('ffi') ? 'FFI loaded' : 'FFI not loaded';"
php -r "echo ini_get('ffi.enable') ? 'FFI enabled' : 'FFI not enabled';"

git clone --depth 1 --filter=blob:none --sparse https://github.com/aloistr/swisseph
cd swisseph
git sparse-checkout set ephe

$sweph = new SwissEphFFI();
$sweph->swe_set_ephe_path(__DIR__ . '/ephe');

Moon:    0.00012236653799391°    =   0.44051953677808 arcseconds
Sun:    -1.0383189994911E-5°    =  -0.037379483981681 arcseconds
Mercury: -9.2710805432716E-7°   =  -0.0033375889955778 arcseconds
Venus:   -3.2593169319028E-6°   =  -0.01173354095485 arcseconds
Mars:    -3.3654127946647E-6°   =  -0.012115486060793 arcseconds
Jupiter:  5.398367167686E-5°    =   0.1943412180367 arcseconds
Saturn:  -3.3962287091072E-5°  =  -0.12226423352786 arcseconds
Uranus:  -3.6743742214185E-5°  =  -0.13227747197107 arcseconds
Neptune: -2.3340794655269E-5°   =  -0.084026860758968 arcseconds
Pluto:   -4.4316591925053E-5°  =  -0.15953973093019 arcseconds

<?php
use SwissEph\FFI\SwissEphFFI;

$sweph = new SwissEphFFI();

$jd = $sweph->swe_julday(1990, 5, 15, 14.5, SwissEphFFI::SE_GREG_CAL);

$xx = $sweph->getFFI()->new('double[6]');
$serr = $sweph->getFFI()->new('char[256]');

$signs = ['Ari', 'Tau', 'Gem', 'Can', 'Leo', 'Vir', 'Lib', 'Sco', 'Sag', 'Cap', 'Aqu', 'Pis'];

$planets = [
    'Sun' => SwissEphFFI::SE_SUN,
    'Moon' => SwissEphFFI::SE_MOON,
    'Mercury' => SwissEphFFI::SE_MERCURY,
    'Venus' => SwissEphFFI::SE_VENUS,
    'Mars' => SwissEphFFI::SE_MARS,
    'Jupiter' => SwissEphFFI::SE_JUPITER,
    'Saturn' => SwissEphFFI::SE_SATURN,
    'Uranus' => SwissEphFFI::SE_URANUS,
    'Neptune' => SwissEphFFI::SE_NEPTUNE,
    'Pluto' => SwissEphFFI::SE_PLUTO,
];

echo "Birth Chart - May 15, 1990, 14:30 UT\n";
echo str_repeat("=", 40) . "\n\n";

foreach ($planets as $name => $p) {
    $result = $sweph->swe_calc_ut($jd, $p, SwissEphFFI::SEFLG_SPEED, $xx, $serr);
    $lon = $xx[0];
    $signIdx = floor($lon / 30);
    $deg = $lon % 30;
    echo sprintf("%-8s %7.2f° %3s %2.2f° (%s)\n", $name . ':', $lon, $signs[$signIdx], $deg, $xx[3] . "°/day");
}

<?php
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]');

$sweph->swe_set_sid_mode(SwissEphFFI::SE_SIDM_LAHIRI, 0, 0);
$ayan = $sweph->swe_get_ayanamsa($jd);

echo "Ayanamsa (Lahiri): " . $ayan . "°\n";

$result = $sweph->swe_calc_ut($jd, SwissEphFFI::SE_SUN, 0, $xx, $serr);
$tropical = $xx[0];
$sidereal = $tropical - $ayan;
if ($sidereal < 0) $sidereal += 360;

echo "Tropical Sun: " . $tropical . "°\n";
echo "Sidereal Sun:  " . $sidereal . "°\n";

<?php
use SwissEph\FFI\SwissEphFFI;

$sweph = new SwissEphFFI();

$jd = $sweph->swe_julday(2000, 1, 1, 12.0, SwissEphFFI::SE_GREG_CAL);

$hsys = $sweph->getFFI()->new("char[1]");
$hsys[0] = ord('P');

$cusps = $sweph->getFFI()->new("double[13]");
$ascmc = $sweph->getFFI()->new("double[10]");
$serr = $sweph->getFFI()->new("char[256]");

$sweph->swe_houses($jd, SwissEphFFI::SE_GREG_CAL, 23.2, 72.8, ord('P'), $cusps, $ascmc, $serr);

echo "Placidus House Cusps:\n";
for ($i = 1; $i <= 12; $i++) {
    echo "House $i: " . $cusps[$i] . "°\n";
}
echo "\nAscendant: " . $ascmc[0] . "°\n";
echo "MC: " . $ascmc[1] . "°\n";

// January 1, 2000 at noon UT = 2451545.0
$jd = $sweph->swe_julday(2000, 1, 1, 12.0, SwissEphFFI::SE_GREG_CAL);

// Or use a float directly
$jd = 2451545.0;

$year = $month = $day = $hour = null;
$sweph->swe_jdet_to_date(2451545.0, $year, $month, $day, $hour);
echo "$year-$month-$day $hour";

// WRONG - PHP arrays won't work
$xx = [0, 0, 0, 0, 0, 0];

// CORRECT - Allocate with FFI
$xx = $sweph->getFFI()->new("double[6]");

// Use constants, not strings
$result = $sweph->swe_calc_ut($jd, SwissEphFFI::SE_SUN, SwissEphFFI::SEFLG_SPEED, $xx, $serr);

// Jan 1, 2000 at midnight UT
$jd = $sweph->swe_julday(2000, 1, 1, 0.0, SwissEphFFI::SE_GREG_CAL);

// Jan 1, 2000 at noon UT  
$jd = $sweph->swe_julday(2000, 1, 1, 12.0, SwissEphFFI::SE_GREG_CAL);

// Jan 1, 2000 at 6:00 AM UT
$jd = $sweph->swe_julday(2000, 1, 1, 6.0, SwissEphFFI::SE_GREG_CAL);

// config/app.php (for Laravel < 11)
'providers' => [
    SwissEph\Service\SwissEphServiceProvider::class,
],

'aliases' => [
    'SwissEph' => SwissEph\Service\SwissEphFacade::class,
],

use SwissEph\Service\SwissEphFacade;

// Calculate Julian Day
$jd = SwissEph::swe_julday(2000, 1, 1, 12.0, SwissEph::SE_GREG_CAL);

// Get planet position
$xx = SwissEph::swe_calc_ut($jd, SwissEph::SE_SUN, SwissEph::SEFLG_SPEED);

# Run all tests
composer test

# Check code quality
composer quality

extension=ffi
ffi.enable=1

echo "/usr/local/lib" | sudo tee /etc/ld.so.conf.d/swisseph.conf
sudo ldconfig

export DYLD_LIBRARY_PATH=/usr/local/lib:$DYLD_LIBRARY_PATH

# Add to PATH
[Environment]::SetEnvironmentVariable("Path", $env:Path + ";C:\php\ext", "Machine")