diff options
Diffstat (limited to 'ext/date/lib/interval.c')
| -rw-r--r-- | ext/date/lib/interval.c | 65 |
1 files changed, 65 insertions, 0 deletions
diff --git a/ext/date/lib/interval.c b/ext/date/lib/interval.c new file mode 100644 index 0000000000..b7c94af506 --- /dev/null +++ b/ext/date/lib/interval.c @@ -0,0 +1,65 @@ +/* + +----------------------------------------------------------------------+ + | PHP Version 5 | + +----------------------------------------------------------------------+ + | Copyright (c) 1997-2008 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: Derick Rethans <derick@derickrethans.nl> | + +----------------------------------------------------------------------+ + */ + +/* $Id$ */ + +#include "timelib.h" + +timelib_rel_time *timelib_diff(timelib_time *one, timelib_time *two) +{ + timelib_rel_time *rt; + timelib_time *swp; + timelib_sll dst_h_corr = 0, dst_m_corr = 0; + + rt = timelib_rel_time_ctor(); + rt->invert = 0; + if (one->sse > two->sse) { + swp = two; + two = one; + one = swp; + rt->invert = 1; + } + + /* Calculate correction for DST change over, but only if the TZ type is ID + * and it's the same */ + if (one->zone_type == 3 && two->zone_type == 3 + && (strcmp(one->tz_info->name, two->tz_info->name) == 0) + && (one->z != two->z)) + { + dst_h_corr = (two->z - one->z) / 3600; + dst_m_corr = ((two->z - one->z) % 3600) / 60; + } + + timelib_apply_localtime(one, 0); + timelib_apply_localtime(two, 0); + + rt->y = two->y - one->y; + rt->m = two->m - one->m; + rt->d = two->d - one->d; + rt->h = two->h - one->h + dst_h_corr; + rt->i = two->i - one->i + dst_m_corr; + rt->s = two->s - one->s; + rt->days = abs(floor((one->sse - two->sse - (dst_h_corr * 3600) - (dst_m_corr * 60)) / 86400)); + + timelib_do_rel_normalize(one, rt); + + timelib_apply_localtime(one, 1); + timelib_apply_localtime(two, 1); + + return rt; +} |