Introduction

PHP-SWEPH is a PHP extension to Astrodienst Swiss Ephemeris library. It's statically linked with libswe.a to implement one-to-one, C-to-PHP function mapping, no external binary executable required.

Function Prototype/Implementation Status

Currently, for those function exported by sweph.c, swedate.c, swehouse.c, swephlib.c are implemented. IMHO, it is sufficient for general astrological calculation. Eclipse functions from swecl.c are partially done, but not tested. The heliographic functions in swehel.c are not included.

For function prototypes and implementation status, please refer to the Google doc spreadsheet: https://spreadsheets.google.com/ccc?key=0Aj0Hh9d0uhcCdFo4V1VpeHB6cGFuZVRtSFkxWHRnUUE&hl=zh_TW

Installation

There's no binary distribution for download. Please get the source code and compile.

Read this for build and install instructions.

Usage

Example 1. ```

swe_set_ephe_path('/usr/local/share/sweph');

list($y, $m, $d, $h, $mi, $s) = sscanf(gmdate("Y m d G i s"), "%d %d %d %d %d %d");
$jul_ut = swe_julday($y, $m, $d, ($h + $mi / 60 + $s / 3600), SE_GREG_CAL);

echo '<table>';
echo "<tr><td colspan=5>Date: $y-$m-$d $h:$mi:$s</td></tr>";
echo "<tr><td colspan=5>Julian Date: $jul_ut</td></tr>";

for($i = SE_SUN; $i <= SE_VESTA; $i++)
{
    if ($i == SE_EARTH) continue;

    echo '<tr>';
    echo '<td>' . swe_get_planet_name($i) . '</td>';

    $xx = swe_calc_ut($jul_ut, $i, SEFLG_SPEED);
    if ($xx['rc'] < 0) { // error calling swe_calc_ut();
        echo "<td colspan=4>" . $xx['serr'] . "</td>";
        continue;
    }
    echo '<td>' . $xx[0] . '</td>';
    echo '<td>' . $xx[1] . '</td>';
    echo '<td>' . $xx[2] . '</td>';
    echo '<td>' . $xx[3] . '</td>';
    echo '</tr>';
}
echo '</table>';

?> ```