+++ /dev/null
-/*
- +----------------------------------------------------------------------+
- | PHP Version 5 |
- +----------------------------------------------------------------------+
- | Copyright (c) 1997-2006 The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Author: Moshe Doron <mosdoron@netvision.net.il> |
- +----------------------------------------------------------------------+
-*/
-
-/* $Id$ */
-
-#ifndef PHP_SUNFUNCS_H
-#define PHP_SUNFUNCS_H
-
-/* default ini entries: */
-/* Jerusalem one. */
-#define DATE_DEFAULT_LATITUDE "31.7667"
-#define DATE_DEFAULT_LONGITUDE "35.2333"
-
-/* on 90'50; common jewish sunset declaration (start of sun body appear) */
-#define DATE_SUNSET_ZENITH "90.83"
-
-/* on 90'50; common jewish sunrise declaration (sun body disappeared) */
-#define DATE_SUNRISE_ZENITH "90.83"
-
-#define SUNFUNCS_RET_TIMESTAMP 0
-#define SUNFUNCS_RET_STRING 1
-#define SUNFUNCS_RET_DOUBLE 2
-
-PHP_FUNCTION(date_sunrise);
-PHP_FUNCTION(date_sunset);
-
-#endif /* PHP_SUNFUNCS_H */
+++ /dev/null
-/*
- +----------------------------------------------------------------------+
- | PHP Version 5 |
- +----------------------------------------------------------------------+
- | Copyright (c) 1997-2006 The PHP Group |
- +----------------------------------------------------------------------+
- | This source file is subject to version 3.01 of the PHP license, |
- | that is bundled with this package in the file LICENSE, and is |
- | available through the world-wide-web at the following url: |
- | http://www.php.net/license/3_01.txt |
- | If you did not receive a copy of the PHP license and are unable to |
- | obtain it through the world-wide-web, please send a note to |
- | license@php.net so we can mail you a copy immediately. |
- +----------------------------------------------------------------------+
- | Author: Moshe Doron <mosdoron@netvision.net.il> |
- +----------------------------------------------------------------------+
-*/
-
-/* $Id$ */
-
-/*
- The sun position algorithm taken from the 'US Naval Observatory's
- Almanac for Computers', implemented by Ken Bloom <kekabloom@ucdavis.edu>
- for the zmanim project <http://sourceforge.net/projects/zmanim/>
- and finally converted to C by Moshe Doron <mosdoron@netvision.net.il>.
-*/
-
-#include "php.h"
-#include "php_sunfuncs.h"
-#include "php_ini.h"
-#include "ext/date/php_date.h"
-
-#include <assert.h>
-#include <math.h>
-#include <stdlib.h>
-
-/* {{{ macros and constants
- */
-#ifndef M_PI
-#define M_PI 3.14159265358979323846
-#endif
-
-#define to_rad(degrees) (degrees * M_PI / 180)
-#define to_rad_with_min(degrees) (degrees + minutes / 60)
-#define to_deg(rad) (rad * 180 / M_PI)
-/* }}} */
-
-/* {{{ php_sunrise_sunset
- returns time in UTC */
-static double php_sunrise_sunset(long N, double latitude, double longitude, double zenith, int calc_sunset)
-{
- double lngHour, t, M, L, Lx, RA, RAx, Lquadrant, RAquadrant, sinDec, cosDec, cosH, H, T, UT, UTx;
-
- /* step 1: First calculate the day of the year
- int N = theday - date(1, 1, theday.year()) + 1;
- */
-
- /* step 2: convert the longitude to hour value and calculate an approximate time */
- lngHour = longitude / 15;
-
- /* use 18 for sunset instead of 6 */
- if (calc_sunset) {
- t = (double) N + ((18 - lngHour) / 24); /* Sunset */
- } else {
- t = (double) N + ((6 - lngHour) / 24); /* Sunrise */
- }
-
- /* step 3: calculate the sun's mean anomaly */
- M = (0.9856 * t) - 3.289;
-
- /* step 4: calculate the sun's true longitude */
- L = M + (1.916 * sin(to_rad(M))) + (0.020 * sin (to_rad(2 * M))) + 282.634;
-
- while (L < 0) {
- Lx = L + 360;
- assert (Lx != L); /* askingtheguru: realy needed? */
- L = Lx;
- }
-
- while (L >= 360) {
- Lx = L - 360;
- assert (Lx != L); /* askingtheguru: realy needed? */
- L = Lx;
- }
-
- /* step 5a: calculate the sun's right ascension */
- RA = to_deg(atan(0.91764 * tan(to_rad(L))));
-
- while (RA < 0) {
- RAx = RA + 360;
- assert (RAx != RA); /* askingtheguru: realy needed? */
- RA = RAx;
- }
-
- while (RA >= 360) {
- RAx = RA - 360;
- assert (RAx != RA); /* askingtheguru: realy needed? */
- RA = RAx;
- }
-
- /* step 5b: right ascension value needs to be in the same quadrant as L */
- Lquadrant = floor(L / 90) * 90;
- RAquadrant = floor(RA / 90) * 90;
- RA = RA + (Lquadrant - RAquadrant);
-
- /* step 5c: right ascension value needs to be converted into hours */
- RA /= 15;
-
- /* step 6: calculate the sun's declination */
- sinDec = 0.39782 * sin(to_rad(L));
- cosDec = cos(asin(sinDec));
-
- /* step 7a: calculate the sun's local hour angle */
- cosH = (cos(to_rad(zenith)) - (sinDec * sin(to_rad(latitude)))) / (cosDec * cos(to_rad(latitude)));
-
- /* XXX: What's the use of this block.. ?
- * if (!calc_sunset && cosH > 1 || calc_sunset && cosH < -1) {
- * throw doesnthappen();
- * }
- */
-
- /* step 7b: finish calculating H and convert into hours */
- if (calc_sunset) {
- H = to_deg(acos(cosH)); /* Sunset */
- } else {
- H = 360 - to_deg(acos(cosH)); /* Sunrise */
- }
- H = H / 15;
-
- /* step 8: calculate local mean time */
- T = H + RA - (0.06571 * t) - 6.622;
-
- /* step 9: convert to UTC */
- UT = T - lngHour;
-
- while (UT < 0) {
- UTx = UT + 24;
- assert (UTx != UT); /* askingtheguru: realy needed? */
- UT = UTx;
- }
-
- while (UT >= 24) {
- UTx = UT - 24;
- assert (UTx != UT); /* askingtheguru: realy needed? */
- UT = UTx;
- }
-
- return UT;
-}
-/* }}} */
-
-/* {{{ php_do_date_sunrise_sunset
- * Common for date_sunrise() and date_sunset() functions
- */
-static void php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAMETERS, int calc_sunset)
-{
- zval *date;
- double latitude, longitude, zenith, gmt_offset, ret;
- int time, N;
- long retformat;
- char retstr[6];
-
- if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "z|ldddd", &date, &retformat, &latitude, &longitude, &zenith, &gmt_offset) == FAILURE) {
- RETURN_FALSE;
- }
-
- switch (Z_TYPE_P(date)) {
- case IS_LONG:
- time = Z_LVAL_P(date);
- break;
- case IS_STRING:
- /* todo: more user friendly format */
- default:
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "date must be timestamp for now");
- RETURN_FALSE;
- }
-
- N = php_idate('z', time, 0) + 1;
-
- switch (ZEND_NUM_ARGS()) {
- case 1:
- retformat = SUNFUNCS_RET_STRING;
- case 2:
- latitude = INI_FLT("date.default_latitude");
- case 3:
- longitude = INI_FLT("date.default_longitude");
- case 4:
- if (calc_sunset) {
- zenith = INI_FLT("date.sunset_zenith");
- } else {
- zenith = INI_FLT("date.sunrise_zenith");
- }
- case 5:
- gmt_offset = php_idate('Z', time, 0) / 3600;
- case 6:
- break;
- default:
- php_error_docref(NULL TSRMLS_CC, E_WARNING, "invalid format");
- RETURN_FALSE;
- break;
- }
-
- ret = php_sunrise_sunset(N, latitude, longitude, zenith, calc_sunset) + gmt_offset;
-
- switch (retformat) {
- case SUNFUNCS_RET_TIMESTAMP:
- RETURN_LONG((int) (time - (time % (24 * 3600))) + (int) (3600 * ret));
- break;
- case SUNFUNCS_RET_STRING:
- N = (int) ret;
- sprintf(retstr, "%02d:%02d", N, (int) (60 * (ret - (double) N)));
- RETVAL_STRINGL(retstr, 5, 1);
- break;
- case SUNFUNCS_RET_DOUBLE:
- RETURN_DOUBLE(ret);
- break;
- }
-}
-/* }}} */
-
-/* {{{ proto mixed date_sunrise(mixed time [, int format [, float latitude [, float longitude [, float zenith [, float gmt_offset]]]]])
- Returns time of sunrise for a given day and location */
-PHP_FUNCTION(date_sunrise)
-{
- php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAM_PASSTHRU, 0);
-}
-/* }}} */
-
-/* {{{ proto mixed date_sunset(mixed time [, int format [, float latitude [, float longitude [, float zenith [, float gmt_offset]]]]])
- Returns time of sunset for a given day and location */
-PHP_FUNCTION(date_sunset)
-{
- php_do_date_sunrise_sunset(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
-}
-/* }}} */
-
-/*
- * Local variables:
- * tab-width: 4
- * c-basic-offset: 4
- * End:
- * vim600: sw=4 ts=4 fdm=marker
- * vim<600: sw=4 ts=4
- */
projects / php / commitdiff