php-src/ext/calendar/cal_unix.c
2006-10-07 15:14:57 +00:00

82 lines
2.5 KiB
C

/*
+----------------------------------------------------------------------+
| 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. |
+----------------------------------------------------------------------+
| Authors: Shane Caraveo <shane@caraveo.com> |
| Colin Viebrock <colin@easydns.com> |
| Hartmut Holzgraefe <hholzgra@php.net> |
+----------------------------------------------------------------------+
*/
/* $Id: */
#include "php.h"
#include "php_calendar.h"
#include "sdncal.h"
#include <time.h>
/* {{{ proto int unixtojd([int timestamp])
Convert UNIX timestamp to Julian Day */
PHP_FUNCTION(unixtojd)
{
time_t timestamp;
long jdate, t;
struct tm *ta, tmbuf;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|l", &t) == FAILURE) {
return;
}
if (ZEND_NUM_ARGS()) {
timestamp = (time_t) t;
} else {
timestamp = time(NULL);
}
if (timestamp < 0) {
RETURN_FALSE;
}
ta = php_localtime_r(&timestamp, &tmbuf);
jdate = GregorianToSdn(ta->tm_year+1900, ta->tm_mon+1, ta->tm_mday);
RETURN_LONG(jdate);
}
/* }}} */
/* {{{ proto int jdtounix(int jday)
Convert Julian Day to UNIX timestamp */
PHP_FUNCTION(jdtounix)
{
long uday, jday;
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "l", &jday) != SUCCESS) {
return;
}
uday = jday - 2440588; /* J.D. of 1.1.1970 */
if(uday<0) RETURN_FALSE; /* before beginning of unix epoch */
if(uday>24755) RETURN_FALSE; /* behind end of unix epoch */
RETURN_LONG(uday*24*3600);
}
/* }}} */
/*
* Local variables:
* tab-width: 4
* c-basic-offset: 4
* End:
* vim600: sw=4 ts=4 fdm=marker
* vim<600: sw=4 ts=4
*/