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php_date.c
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php_date.c
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/*
+----------------------------------------------------------------------+
| PHP Version 5 |
+----------------------------------------------------------------------+
| Copyright (c) 1997-2007 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 "php.h"
#include "php_streams.h"
#include "php_main.h"
#include "php_globals.h"
#include "php_ini.h"
#include "ext/standard/info.h"
#include "ext/standard/php_versioning.h"
#include "ext/standard/php_math.h"
#include "php_date.h"
#include "lib/timelib.h"
#include <time.h>
/* {{{ arginfo */
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_date, 0, 0, 1)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmdate, 0, 0, 1)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_idate, 0, 0, 1)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_strtotime, 0, 0, 1)
ZEND_ARG_INFO(0, time)
ZEND_ARG_INFO(0, now)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_mktime, 0, 0, 0)
ZEND_ARG_INFO(0, hour)
ZEND_ARG_INFO(0, min)
ZEND_ARG_INFO(0, sec)
ZEND_ARG_INFO(0, mon)
ZEND_ARG_INFO(0, day)
ZEND_ARG_INFO(0, year)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmmktime, 0, 0, 0)
ZEND_ARG_INFO(0, hour)
ZEND_ARG_INFO(0, min)
ZEND_ARG_INFO(0, sec)
ZEND_ARG_INFO(0, mon)
ZEND_ARG_INFO(0, day)
ZEND_ARG_INFO(0, year)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO(arginfo_checkdate, 0)
ZEND_ARG_INFO(0, month)
ZEND_ARG_INFO(0, day)
ZEND_ARG_INFO(0, year)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_strftime, 0, 0, 1)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_gmstrftime, 0, 0, 1)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO(arginfo_time, 0)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_localtime, 0, 0, 0)
ZEND_ARG_INFO(0, timestamp)
ZEND_ARG_INFO(0, associative_array)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_getdate, 0, 0, 0)
ZEND_ARG_INFO(0, timestamp)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO(arginfo_date_default_timezone_set, 0)
ZEND_ARG_INFO(0, timezone_identifier)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO(arginfo_date_default_timezone_get, 0)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_date_sunrise, 0, 0, 1)
ZEND_ARG_INFO(0, time)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, latitude)
ZEND_ARG_INFO(0, longitude)
ZEND_ARG_INFO(0, zenith)
ZEND_ARG_INFO(0, gmt_offset)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO_EX(arginfo_date_sunset, 0, 0, 1)
ZEND_ARG_INFO(0, time)
ZEND_ARG_INFO(0, format)
ZEND_ARG_INFO(0, latitude)
ZEND_ARG_INFO(0, longitude)
ZEND_ARG_INFO(0, zenith)
ZEND_ARG_INFO(0, gmt_offset)
ZEND_END_ARG_INFO()
static
ZEND_BEGIN_ARG_INFO(arginfo_date_sun_info, 0)
ZEND_ARG_INFO(0, time)
ZEND_ARG_INFO(0, latitude)
ZEND_ARG_INFO(0, longitude)
ZEND_END_ARG_INFO()
/* }}} */
/* {{{ Function table */
const zend_function_entry date_functions[] = {
PHP_FE(strtotime, arginfo_strtotime)
PHP_FE(date, arginfo_date)
PHP_FE(idate, arginfo_idate)
PHP_FE(gmdate, arginfo_gmdate)
PHP_FE(mktime, arginfo_mktime)
PHP_FE(gmmktime, arginfo_gmmktime)
PHP_FE(checkdate, arginfo_checkdate)
#ifdef HAVE_STRFTIME
PHP_FE(strftime, arginfo_strftime)
PHP_FE(gmstrftime, arginfo_gmstrftime)
#endif
PHP_FE(time, arginfo_time)
PHP_FE(localtime, arginfo_localtime)
PHP_FE(getdate, arginfo_getdate)
/* Advanced Interface */
PHP_FE(date_create, NULL)
PHP_FE(date_parse, NULL)
PHP_FE(date_format, NULL)
PHP_FE(date_modify, NULL)
PHP_FE(date_timezone_get, NULL)
PHP_FE(date_timezone_set, NULL)
PHP_FE(date_offset_get, NULL)
PHP_FE(date_time_set, NULL)
PHP_FE(date_date_set, NULL)
PHP_FE(date_isodate_set, NULL)
PHP_FE(timezone_open, NULL)
PHP_FE(timezone_name_get, NULL)
PHP_FE(timezone_name_from_abbr, NULL)
PHP_FE(timezone_offset_get, NULL)
PHP_FE(timezone_transitions_get, NULL)
PHP_FE(timezone_identifiers_list, NULL)
PHP_FE(timezone_abbreviations_list, NULL)
/* Options and Configuration */
PHP_FE(date_default_timezone_set, arginfo_date_default_timezone_set)
PHP_FE(date_default_timezone_get, arginfo_date_default_timezone_get)
/* Astronomical functions */
PHP_FE(date_sunrise, arginfo_date_sunrise)
PHP_FE(date_sunset, arginfo_date_sunset)
PHP_FE(date_sun_info, arginfo_date_sun_info)
{NULL, NULL, NULL}
};
const zend_function_entry date_funcs_date[] = {
PHP_ME(DateTime, __construct, NULL, ZEND_ACC_CTOR|ZEND_ACC_PUBLIC)
PHP_ME_MAPPING(format, date_format, NULL, 0)
PHP_ME_MAPPING(modify, date_modify, NULL, 0)
PHP_ME_MAPPING(getTimezone, date_timezone_get, NULL, 0)
PHP_ME_MAPPING(setTimezone, date_timezone_set, NULL, 0)
PHP_ME_MAPPING(getOffset, date_offset_get, NULL, 0)
PHP_ME_MAPPING(setTime, date_time_set, NULL, 0)
PHP_ME_MAPPING(setDate, date_date_set, NULL, 0)
PHP_ME_MAPPING(setISODate, date_isodate_set, NULL, 0)
{NULL, NULL, NULL}
};
const zend_function_entry date_funcs_timezone[] = {
PHP_ME(DateTimeZone, __construct, NULL, ZEND_ACC_CTOR|ZEND_ACC_PUBLIC)
PHP_ME_MAPPING(getName, timezone_name_get, NULL, 0)
PHP_ME_MAPPING(getOffset, timezone_offset_get, NULL, 0)
PHP_ME_MAPPING(getTransitions, timezone_transitions_get, NULL, 0)
PHP_ME_MAPPING(listAbbreviations, timezone_abbreviations_list, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
PHP_ME_MAPPING(listIdentifiers, timezone_identifiers_list, NULL, ZEND_ACC_PUBLIC|ZEND_ACC_STATIC)
{NULL, NULL, NULL}
};
static void date_register_classes(TSRMLS_D);
static char* guess_timezone(const timelib_tzdb *tzdb TSRMLS_DC);
/* }}} */
ZEND_DECLARE_MODULE_GLOBALS(date)
static PHP_GINIT_FUNCTION(date);
/* True global */
timelib_tzdb *php_date_global_timezone_db;
int php_date_global_timezone_db_enabled;
#define DATE_DEFAULT_LATITUDE "31.7667"
#define DATE_DEFAULT_LONGITUDE "35.2333"
/* on 90'35; common sunset declaration (start of sun body appear) */
#define DATE_SUNSET_ZENITH "90.583333"
/* on 90'35; common sunrise declaration (sun body disappeared) */
#define DATE_SUNRISE_ZENITH "90.583333"
/* {{{ INI Settings */
PHP_INI_BEGIN()
STD_PHP_INI_ENTRY("date.timezone", "", PHP_INI_ALL, OnUpdateString, default_timezone, zend_date_globals, date_globals)
PHP_INI_ENTRY("date.default_latitude", DATE_DEFAULT_LATITUDE, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.default_longitude", DATE_DEFAULT_LONGITUDE, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.sunset_zenith", DATE_SUNSET_ZENITH, PHP_INI_ALL, NULL)
PHP_INI_ENTRY("date.sunrise_zenith", DATE_SUNRISE_ZENITH, PHP_INI_ALL, NULL)
PHP_INI_END()
/* }}} */
zend_class_entry *date_ce_date, *date_ce_timezone;
static zend_object_handlers date_object_handlers_date;
static zend_object_handlers date_object_handlers_timezone;
typedef struct _php_date_obj php_date_obj;
typedef struct _php_timezone_obj php_timezone_obj;
struct _php_date_obj {
zend_object std;
timelib_time *time;
};
struct _php_timezone_obj {
zend_object std;
timelib_tzinfo *tz;
};
#define DATE_SET_CONTEXT \
zval *object; \
object = getThis(); \
#define DATE_FETCH_OBJECT \
php_date_obj *obj; \
DATE_SET_CONTEXT; \
if (object) { \
if (ZEND_NUM_ARGS()) { \
WRONG_PARAM_COUNT; \
} \
} else { \
if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, NULL, "O", &object, date_ce_date) == FAILURE) { \
RETURN_FALSE; \
} \
} \
obj = (php_date_obj *) zend_object_store_get_object(object TSRMLS_CC); \
#define DATE_CHECK_INITIALIZED(member, class_name) \
if (!(member)) { \
php_error_docref(NULL TSRMLS_CC, E_WARNING, "The " #class_name " object has not been correctly initialized by its constructor"); \
RETURN_FALSE; \
}
static void date_object_free_storage_date(void *object TSRMLS_DC);
static void date_object_free_storage_timezone(void *object TSRMLS_DC);
static zend_object_value date_object_new_date(zend_class_entry *class_type TSRMLS_DC);
static zend_object_value date_object_new_timezone(zend_class_entry *class_type TSRMLS_DC);
static zend_object_value date_object_clone_date(zval *this_ptr TSRMLS_DC);
static int date_object_compare_date(zval *d1, zval *d2 TSRMLS_DC);
static zend_object_value date_object_clone_timezone(zval *this_ptr TSRMLS_DC);
/* This is need to ensure that session extension request shutdown occurs 1st, because it uses the date extension */
static const zend_module_dep date_deps[] = {
ZEND_MOD_OPTIONAL("session")
{NULL, NULL, NULL}
};
/* {{{ Module struct */
zend_module_entry date_module_entry = {
STANDARD_MODULE_HEADER_EX,
NULL,
date_deps,
"date", /* extension name */
date_functions, /* function list */
PHP_MINIT(date), /* process startup */
PHP_MSHUTDOWN(date), /* process shutdown */
PHP_RINIT(date), /* request startup */
PHP_RSHUTDOWN(date), /* request shutdown */
PHP_MINFO(date), /* extension info */
PHP_VERSION, /* extension version */
PHP_MODULE_GLOBALS(date), /* globals descriptor */
PHP_GINIT(date), /* globals ctor */
NULL, /* globals dtor */
NULL, /* post deactivate */
STANDARD_MODULE_PROPERTIES_EX
};
/* }}} */
/* {{{ PHP_GINIT_FUNCTION */
static PHP_GINIT_FUNCTION(date)
{
date_globals->default_timezone = NULL;
date_globals->timezone = NULL;
}
/* }}} */
static void _php_date_tzinfo_dtor(void *tzinfo)
{
timelib_tzinfo **tzi = (timelib_tzinfo **)tzinfo;
timelib_tzinfo_dtor(*tzi);
}
/* {{{ PHP_RINIT_FUNCTION */
PHP_RINIT_FUNCTION(date)
{
if (DATEG(timezone)) {
efree(DATEG(timezone));
}
DATEG(timezone) = NULL;
zend_hash_init(&DATEG(tzcache), 4, NULL, _php_date_tzinfo_dtor, 0);
return SUCCESS;
}
/* }}} */
/* {{{ PHP_RSHUTDOWN_FUNCTION */
PHP_RSHUTDOWN_FUNCTION(date)
{
if (DATEG(timezone)) {
efree(DATEG(timezone));
}
DATEG(timezone) = NULL;
zend_hash_destroy(&DATEG(tzcache));
return SUCCESS;
}
/* }}} */
#define DATE_TIMEZONEDB php_date_global_timezone_db ? php_date_global_timezone_db : timelib_builtin_db()
/*
* RFC822, Section 5.1: http://www.ietf.org/rfc/rfc822.txt
* date-time = [ day "," ] date time ; dd mm yy hh:mm:ss zzz
* day = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun"
* date = 1*2DIGIT month 2DIGIT ; day month year e.g. 20 Jun 82
* month = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec"
* time = hour zone ; ANSI and Military
* hour = 2DIGIT ":" 2DIGIT [":" 2DIGIT] ; 00:00:00 - 23:59:59
* zone = "UT" / "GMT" / "EST" / "EDT" / "CST" / "CDT" / "MST" / "MDT" / "PST" / "PDT" / 1ALPHA / ( ("+" / "-") 4DIGIT )
*/
#define DATE_FORMAT_RFC822 "D, d M y H:i:s O"
/*
* RFC850, Section 2.1.4: http://www.ietf.org/rfc/rfc850.txt
* Format must be acceptable both to the ARPANET and to the getdate routine.
* One format that is acceptable to both is Weekday, DD-Mon-YY HH:MM:SS TIMEZONE
* TIMEZONE can be any timezone name (3 or more letters)
*/
#define DATE_FORMAT_RFC850 "l, d-M-y H:i:s T"
/*
* RFC1036, Section 2.1.2: http://www.ietf.org/rfc/rfc1036.txt
* Its format must be acceptable both in RFC-822 and to the getdate(3)
* Wdy, DD Mon YY HH:MM:SS TIMEZONE
* There is no hope of having a complete list of timezones. Universal
* Time (GMT), the North American timezones (PST, PDT, MST, MDT, CST,
* CDT, EST, EDT) and the +/-hhmm offset specifed in RFC-822 should be supported.
*/
#define DATE_FORMAT_RFC1036 "D, d M y H:i:s O"
/*
* RFC1123, Section 5.2.14: http://www.ietf.org/rfc/rfc1123.txt
* RFC-822 Date and Time Specification: RFC-822 Section 5
* The syntax for the date is hereby changed to: date = 1*2DIGIT month 2*4DIGIT
*/
#define DATE_FORMAT_RFC1123 "D, d M Y H:i:s O"
/*
* RFC2822, Section 3.3: http://www.ietf.org/rfc/rfc2822.txt
* FWS = ([*WSP CRLF] 1*WSP) / ; Folding white space
* CFWS = *([FWS] comment) (([FWS] comment) / FWS)
*
* date-time = [ day-of-week "," ] date FWS time [CFWS]
* day-of-week = ([FWS] day-name)
* day-name = "Mon" / "Tue" / "Wed" / "Thu" / "Fri" / "Sat" / "Sun"
* date = day month year
* year = 4*DIGIT
* month = (FWS month-name FWS)
* month-name = "Jan" / "Feb" / "Mar" / "Apr" / "May" / "Jun" / "Jul" / "Aug" / "Sep" / "Oct" / "Nov" / "Dec"
* day = ([FWS] 1*2DIGIT)
* time = time-of-day FWS zone
* time-of-day = hour ":" minute [ ":" second ]
* hour = 2DIGIT
* minute = 2DIGIT
* second = 2DIGIT
* zone = (( "+" / "-" ) 4DIGIT)
*/
#define DATE_FORMAT_RFC2822 "D, d M Y H:i:s O"
/*
* RFC3339, Section 5.6: http://www.ietf.org/rfc/rfc3339.txt
* date-fullyear = 4DIGIT
* date-month = 2DIGIT ; 01-12
* date-mday = 2DIGIT ; 01-28, 01-29, 01-30, 01-31 based on month/year
*
* time-hour = 2DIGIT ; 00-23
* time-minute = 2DIGIT ; 00-59
* time-second = 2DIGIT ; 00-58, 00-59, 00-60 based on leap second rules
*
* time-secfrac = "." 1*DIGIT
* time-numoffset = ("+" / "-") time-hour ":" time-minute
* time-offset = "Z" / time-numoffset
*
* partial-time = time-hour ":" time-minute ":" time-second [time-secfrac]
* full-date = date-fullyear "-" date-month "-" date-mday
* full-time = partial-time time-offset
*
* date-time = full-date "T" full-time
*/
#define DATE_FORMAT_RFC3339 "Y-m-d\\TH:i:sP"
#define DATE_FORMAT_ISO8601 "Y-m-d\\TH:i:sO"
#define DATE_TZ_ERRMSG \
"It is not safe to rely on the system's timezone settings. Please use " \
"the date.timezone setting, the TZ environment variable or the " \
"date_default_timezone_set() function. In case you used any of those " \
"methods and you are still getting this warning, you most likely " \
"misspelled the timezone identifier. "
#define SUNFUNCS_RET_TIMESTAMP 0
#define SUNFUNCS_RET_STRING 1
#define SUNFUNCS_RET_DOUBLE 2
/* {{{ PHP_MINIT_FUNCTION */
PHP_MINIT_FUNCTION(date)
{
REGISTER_INI_ENTRIES();
date_register_classes(TSRMLS_C);
/*
* RFC4287, Section 3.3: http://www.ietf.org/rfc/rfc4287.txt
* A Date construct is an element whose content MUST conform to the
* "date-time" production in [RFC3339]. In addition, an uppercase "T"
* character MUST be used to separate date and time, and an uppercase
* "Z" character MUST be present in the absence of a numeric time zone offset.
*/
REGISTER_STRING_CONSTANT("DATE_ATOM", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
/*
* Preliminary specification: http://wp.netscape.com/newsref/std/cookie_spec.html
* "This is based on RFC 822, RFC 850, RFC 1036, and RFC 1123,
* with the variations that the only legal time zone is GMT
* and the separators between the elements of the date must be dashes."
*/
REGISTER_STRING_CONSTANT("DATE_COOKIE", DATE_FORMAT_RFC850, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_ISO8601", DATE_FORMAT_ISO8601, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC822", DATE_FORMAT_RFC822, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC850", DATE_FORMAT_RFC850, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC1036", DATE_FORMAT_RFC1036, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC1123", DATE_FORMAT_RFC1123, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC2822", DATE_FORMAT_RFC2822, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_RFC3339", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
/*
* RSS 2.0 Specification: http://blogs.law.harvard.edu/tech/rss
* "All date-times in RSS conform to the Date and Time Specification of RFC 822,
* with the exception that the year may be expressed with two characters or four characters (four preferred)"
*/
REGISTER_STRING_CONSTANT("DATE_RSS", DATE_FORMAT_RFC1123, CONST_CS | CONST_PERSISTENT);
REGISTER_STRING_CONSTANT("DATE_W3C", DATE_FORMAT_RFC3339, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_TIMESTAMP", SUNFUNCS_RET_TIMESTAMP, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_STRING", SUNFUNCS_RET_STRING, CONST_CS | CONST_PERSISTENT);
REGISTER_LONG_CONSTANT("SUNFUNCS_RET_DOUBLE", SUNFUNCS_RET_DOUBLE, CONST_CS | CONST_PERSISTENT);
php_date_global_timezone_db = NULL;
php_date_global_timezone_db_enabled = 0;
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MSHUTDOWN_FUNCTION */
PHP_MSHUTDOWN_FUNCTION(date)
{
UNREGISTER_INI_ENTRIES();
return SUCCESS;
}
/* }}} */
/* {{{ PHP_MINFO_FUNCTION */
PHP_MINFO_FUNCTION(date)
{
const timelib_tzdb *tzdb = DATE_TIMEZONEDB;
php_info_print_table_start();
php_info_print_table_row(2, "date/time support", "enabled");
php_info_print_table_row(2, "\"Olson\" Timezone Database Version", tzdb->version);
php_info_print_table_row(2, "Timezone Database", php_date_global_timezone_db_enabled ? "external" : "internal");
php_info_print_table_row(2, "Default timezone", guess_timezone(tzdb TSRMLS_CC));
php_info_print_table_end();
DISPLAY_INI_ENTRIES();
}
/* }}} */
/* {{{ Timezone Cache functions */
static timelib_tzinfo *php_date_parse_tzfile(char *formal_tzname, const timelib_tzdb *tzdb TSRMLS_DC)
{
timelib_tzinfo *tzi, **ptzi;
if (zend_hash_find(&DATEG(tzcache), formal_tzname, strlen(formal_tzname) + 1, (void **) &ptzi) == SUCCESS) {
return *ptzi;
}
tzi = timelib_parse_tzfile(formal_tzname, tzdb);
if (tzi) {
zend_hash_add(&DATEG(tzcache), formal_tzname, strlen(formal_tzname) + 1, (void *) &tzi, sizeof(timelib_tzinfo*), NULL);
}
return tzi;
}
/* }}} */
/* {{{ Helper functions */
static char* guess_timezone(const timelib_tzdb *tzdb TSRMLS_DC)
{
char *env;
/* Checking configure timezone */
if (DATEG(timezone) && (strlen(DATEG(timezone)) > 0)) {
return DATEG(timezone);
}
/* Check environment variable */
env = getenv("TZ");
if (env && *env && timelib_timezone_id_is_valid(env, tzdb)) {
return env;
}
/* Check config setting for default timezone */
if (DATEG(default_timezone) && (strlen(DATEG(default_timezone)) > 0) && timelib_timezone_id_is_valid(DATEG(default_timezone), tzdb)) {
return DATEG(default_timezone);
}
#if HAVE_TM_ZONE
/* Try to guess timezone from system information */
{
struct tm *ta, tmbuf;
time_t the_time;
char *tzid = NULL;
the_time = time(NULL);
ta = php_localtime_r(&the_time, &tmbuf);
if (ta) {
tzid = timelib_timezone_id_from_abbr(ta->tm_zone, ta->tm_gmtoff, ta->tm_isdst);
}
if (! tzid) {
tzid = "UTC";
}
php_error_docref(NULL TSRMLS_CC, E_STRICT, DATE_TZ_ERRMSG "We selected '%s' for '%s/%.1f/%s' instead", tzid, ta ? ta->tm_zone : "Unknown", ta ? (float) (ta->tm_gmtoff / 3600) : 0, ta ? (ta->tm_isdst ? "DST" : "no DST") : "Unknown");
return tzid;
}
#endif
#ifdef PHP_WIN32
{
char *tzid;
TIME_ZONE_INFORMATION tzi;
switch (GetTimeZoneInformation(&tzi))
{
/* no DST or not in effect */
case TIME_ZONE_ID_UNKNOWN:
case TIME_ZONE_ID_STANDARD:
php_win_std_time:
tzid = timelib_timezone_id_from_abbr("", (tzi.Bias + tzi.StandardBias) * -60, 0);
if (! tzid) {
tzid = "UTC";
}
php_error_docref(NULL TSRMLS_CC, E_STRICT, DATE_TZ_ERRMSG "We selected '%s' for '%.1f/no DST' instead", tzid, ((tzi.Bias + tzi.StandardBias) / -60.0));
break;
/* DST in effect */
case TIME_ZONE_ID_DAYLIGHT:
/* If user has disabled DST in the control panel, Windows returns 0 here */
if (tzi.DaylightBias == 0) {
goto php_win_std_time;
}
tzid = timelib_timezone_id_from_abbr("", (tzi.Bias + tzi.DaylightBias) * -60, 1);
if (! tzid) {
tzid = "UTC";
}
php_error_docref(NULL TSRMLS_CC, E_STRICT, DATE_TZ_ERRMSG "We selected '%s' for '%.1f/DST' instead", tzid, ((tzi.Bias + tzi.DaylightBias) / -60.0));
break;
}
return tzid;
}
#elif defined(NETWARE)
/* Try to guess timezone from system information */
{
char *tzid = timelib_timezone_id_from_abbr("", ((_timezone * -1) + (daylightOffset * daylightOnOff)), daylightOnOff);
if (tzid) {
return tzid;
}
}
#endif
/* Fallback to UTC */
php_error_docref(NULL TSRMLS_CC, E_WARNING, DATE_TZ_ERRMSG "We had to select 'UTC' because your platform doesn't provide functionality for the guessing algorithm");
return "UTC";
}
PHPAPI timelib_tzinfo *get_timezone_info(TSRMLS_D)
{
char *tz;
timelib_tzinfo *tzi;
tz = guess_timezone(DATE_TIMEZONEDB TSRMLS_CC);
tzi = php_date_parse_tzfile(tz, DATE_TIMEZONEDB TSRMLS_CC);
if (! tzi) {
php_error_docref(NULL TSRMLS_CC, E_ERROR, "Timezone database is corrupt - this should *never* happen!");
}
return tzi;
}
/* }}} */
/* {{{ date() and gmdate() data */
#include "ext/standard/php_smart_str.h"
static char *mon_full_names[] = {
"January", "February", "March", "April",
"May", "June", "July", "August",
"September", "October", "November", "December"
};
static char *mon_short_names[] = {
"Jan", "Feb", "Mar", "Apr", "May", "Jun", "Jul", "Aug", "Sep", "Oct", "Nov", "Dec"
};
static char *day_full_names[] = {
"Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
};
static char *day_short_names[] = {
"Sun", "Mon", "Tue", "Wed", "Thu", "Fri", "Sat"
};
static char *english_suffix(timelib_sll number)
{
if (number >= 10 && number <= 19) {
return "th";
} else {
switch (number % 10) {
case 1: return "st";
case 2: return "nd";
case 3: return "rd";
}
}
return "th";
}
/* }}} */
/* {{{ day of week helpers */
char *php_date_full_day_name(timelib_sll y, timelib_sll m, timelib_sll d)
{
timelib_sll day_of_week = timelib_day_of_week(y, m, d);
if (day_of_week < 0) {
return "Unknown";
}
return day_full_names[day_of_week];
}
char *php_date_short_day_name(timelib_sll y, timelib_sll m, timelib_sll d)
{
timelib_sll day_of_week = timelib_day_of_week(y, m, d);
if (day_of_week < 0) {
return "Unknown";
}
return day_short_names[day_of_week];
}
/* }}} */
/* {{{ date_format - (gm)date helper */
static char *date_format(char *format, int format_len, timelib_time *t, int localtime)
{
smart_str string = {0};
int i, length;
char buffer[33];
timelib_time_offset *offset = NULL;
timelib_sll isoweek, isoyear;
int rfc_colon = 0;
if (!format_len) {
return estrdup("");
}
if (localtime) {
if (t->zone_type == TIMELIB_ZONETYPE_ABBR) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z - (t->dst * 60)) * -60;
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = strdup(t->tz_abbr);
} else if (t->zone_type == TIMELIB_ZONETYPE_OFFSET) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z - (t->dst * 60)) * -60;
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = malloc(9); /* GMT±xxxx\0 */
snprintf(offset->abbr, 9, "GMT%c%02d%02d",
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
localtime ? abs((offset->offset % 3600) / 60) : 0 );
} else {
offset = timelib_get_time_zone_info(t->sse, t->tz_info);
}
}
timelib_isoweek_from_date(t->y, t->m, t->d, &isoweek, &isoyear);
for (i = 0; i < format_len; i++) {
switch (format[i]) {
/* day */
case 'd': length = slprintf(buffer, 32, "%02d", (int) t->d); break;
case 'D': length = slprintf(buffer, 32, "%s", php_date_short_day_name(t->y, t->m, t->d)); break;
case 'j': length = slprintf(buffer, 32, "%d", (int) t->d); break;
case 'l': length = slprintf(buffer, 32, "%s", php_date_full_day_name(t->y, t->m, t->d)); break;
case 'S': length = slprintf(buffer, 32, "%s", english_suffix(t->d)); break;
case 'w': length = slprintf(buffer, 32, "%d", (int) timelib_day_of_week(t->y, t->m, t->d)); break;
case 'N': length = slprintf(buffer, 32, "%d", (int) timelib_iso_day_of_week(t->y, t->m, t->d)); break;
case 'z': length = slprintf(buffer, 32, "%d", (int) timelib_day_of_year(t->y, t->m, t->d)); break;
/* week */
case 'W': length = slprintf(buffer, 32, "%02d", (int) isoweek); break; /* iso weeknr */
case 'o': length = slprintf(buffer, 32, "%d", (int) isoyear); break; /* iso year */
/* month */
case 'F': length = slprintf(buffer, 32, "%s", mon_full_names[t->m - 1]); break;
case 'm': length = slprintf(buffer, 32, "%02d", (int) t->m); break;
case 'M': length = slprintf(buffer, 32, "%s", mon_short_names[t->m - 1]); break;
case 'n': length = slprintf(buffer, 32, "%d", (int) t->m); break;
case 't': length = slprintf(buffer, 32, "%d", (int) timelib_days_in_month(t->y, t->m)); break;
/* year */
case 'L': length = slprintf(buffer, 32, "%d", timelib_is_leap((int) t->y)); break;
case 'y': length = slprintf(buffer, 32, "%02d", (int) t->y % 100); break;
case 'Y': length = slprintf(buffer, 32, "%s%04d", t->y < 0 ? "-" : "", abs((int) t->y)); break;
/* time */
case 'a': length = slprintf(buffer, 32, "%s", t->h >= 12 ? "pm" : "am"); break;
case 'A': length = slprintf(buffer, 32, "%s", t->h >= 12 ? "PM" : "AM"); break;
case 'B': {
int retval = (((((long)t->sse)-(((long)t->sse) - ((((long)t->sse) % 86400) + 3600))) * 10) / 864);
while (retval < 0) {
retval += 1000;
}
retval = retval % 1000;
length = slprintf(buffer, 32, "%03d", retval);
break;
}
case 'g': length = slprintf(buffer, 32, "%d", (t->h % 12) ? (int) t->h % 12 : 12); break;
case 'G': length = slprintf(buffer, 32, "%d", (int) t->h); break;
case 'h': length = slprintf(buffer, 32, "%02d", (t->h % 12) ? (int) t->h % 12 : 12); break;
case 'H': length = slprintf(buffer, 32, "%02d", (int) t->h); break;
case 'i': length = slprintf(buffer, 32, "%02d", (int) t->i); break;
case 's': length = slprintf(buffer, 32, "%02d", (int) t->s); break;
case 'u': length = slprintf(buffer, 32, "%06d", (int) floor(t->f * 1000000)); break;
/* timezone */
case 'I': length = slprintf(buffer, 32, "%d", localtime ? offset->is_dst : 0); break;
case 'P': rfc_colon = 1; /* break intentionally missing */
case 'O': length = slprintf(buffer, 32, "%c%02d%s%02d",
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
rfc_colon ? ":" : "",
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'T': length = slprintf(buffer, 32, "%s", localtime ? offset->abbr : "GMT"); break;
case 'e': length = slprintf(buffer, 32, "%s", localtime ? t->tz_info->name : "UTC"); break;
case 'Z': length = slprintf(buffer, 32, "%d", localtime ? offset->offset : 0); break;
/* full date/time */
case 'c': length = slprintf(buffer, 32, "%04d-%02d-%02dT%02d:%02d:%02d%c%02d:%02d",
(int) t->y, (int) t->m, (int) t->d,
(int) t->h, (int) t->i, (int) t->s,
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'r': length = slprintf(buffer, 32, "%3s, %02d %3s %04d %02d:%02d:%02d %c%02d%02d",
php_date_short_day_name(t->y, t->m, t->d),
(int) t->d, mon_short_names[t->m - 1],
(int) t->y, (int) t->h, (int) t->i, (int) t->s,
localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
localtime ? abs(offset->offset / 3600) : 0,
localtime ? abs((offset->offset % 3600) / 60) : 0
);
break;
case 'U': length = slprintf(buffer, 32, "%lld", (timelib_sll) t->sse); break;
case '\\': if (i < format_len) i++; /* break intentionally missing */
default: buffer[0] = format[i]; buffer[1] = '\0'; length = 1; break;
}
smart_str_appendl(&string, buffer, length);
}
smart_str_0(&string);
if (localtime) {
timelib_time_offset_dtor(offset);
}
return string.c;
}
static void php_date(INTERNAL_FUNCTION_PARAMETERS, int localtime)
{
char *format;
int format_len;
long ts;
char *string;
if (ZEND_NUM_ARGS() == 1) {
ts = time(NULL);
}
if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "s|l", &format, &format_len, &ts) == FAILURE) {
RETURN_FALSE;
}
string = php_format_date(format, format_len, ts, localtime TSRMLS_CC);
RETVAL_STRING(string, 0);
}
/* }}} */
PHPAPI char *php_format_date(char *format, int format_len, time_t ts, int localtime TSRMLS_DC) /* {{{ */
{
timelib_time *t;
timelib_tzinfo *tzi;
char *string;
t = timelib_time_ctor();
if (localtime) {
tzi = get_timezone_info(TSRMLS_C);
t->tz_info = tzi;
t->zone_type = TIMELIB_ZONETYPE_ID;
timelib_unixtime2local(t, ts);
} else {
tzi = NULL;
timelib_unixtime2gmt(t, ts);
}
string = date_format(format, format_len, t, localtime);
timelib_time_dtor(t);
return string;
}
/* }}} */
/* {{{ php_idate
*/
PHPAPI int php_idate(char format, time_t ts, int localtime)
{
timelib_time *t;
timelib_tzinfo *tzi;
int retval = -1;
timelib_time_offset *offset = NULL;
timelib_sll isoweek, isoyear;
t = timelib_time_ctor();
if (!localtime) {
TSRMLS_FETCH();
tzi = get_timezone_info(TSRMLS_C);
t->tz_info = tzi;
t->zone_type = TIMELIB_ZONETYPE_ID;
timelib_unixtime2local(t, ts);
} else {
tzi = NULL;
timelib_unixtime2gmt(t, ts);
}
if (!localtime) {
if (t->zone_type == TIMELIB_ZONETYPE_ABBR) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z - (t->dst * 60)) * -60;
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = strdup(t->tz_abbr);
} else if (t->zone_type == TIMELIB_ZONETYPE_OFFSET) {
offset = timelib_time_offset_ctor();
offset->offset = (t->z - (t->dst * 60)) * -60;
offset->leap_secs = 0;
offset->is_dst = t->dst;
offset->abbr = malloc(9); /* GMT±xxxx\0 */
snprintf(offset->abbr, 9, "GMT%c%02d%02d",
!localtime ? ((offset->offset < 0) ? '-' : '+') : '+',
!localtime ? abs(offset->offset / 3600) : 0,
!localtime ? abs((offset->offset % 3600) / 60) : 0 );
} else {
offset = timelib_get_time_zone_info(t->sse, t->tz_info);
}
}
timelib_isoweek_from_date(t->y, t->m, t->d, &isoweek, &isoyear);
switch (format) {
/* day */
case 'd': case 'j': retval = (int) t->d; break;
case 'w': retval = (int) timelib_day_of_week(t->y, t->m, t->d); break;
case 'z': retval = (int) timelib_day_of_year(t->y, t->m, t->d); break;
/* week */
case 'W': retval = (int) isoweek; break; /* iso weeknr */
/* month */
case 'm': case 'n': retval = (int) t->m; break;
case 't': retval = (int) timelib_days_in_month(t->y, t->m); break;
/* year */
case 'L': retval = (int) timelib_is_leap((int) t->y); break;
case 'y': retval = (int) (t->y % 100); break;
case 'Y': retval = (int) t->y; break;
/* Swatch Beat a.k.a. Internet Time */
case 'B':
retval = (((((long)t->sse)-(((long)t->sse) - ((((long)t->sse) % 86400) + 3600))) * 10) / 864);
while (retval < 0) {
retval += 1000;
}
retval = retval % 1000;
break;
/* time */
case 'g': case 'h': retval = (int) ((t->h % 12) ? (int) t->h % 12 : 12); break;
case 'H': case 'G': retval = (int) t->h; break;
case 'i': retval = (int) t->i; break;
case 's': retval = (int) t->s; break;
/* timezone */
case 'I': retval = (int) (!localtime ? offset->is_dst : 0); break;
case 'Z': retval = (int) (!localtime ? offset->offset : 0); break;
case 'U': retval = (int) t->sse; break;
}
if (!localtime) {
timelib_time_offset_dtor(offset);
}
timelib_time_dtor(t);
return retval;
}
/* }}} */
/* {{{ proto string date(string format [, long timestamp])
Format a local date/time */
PHP_FUNCTION(date)
{
php_date(INTERNAL_FUNCTION_PARAM_PASSTHRU, 1);
}
/* }}} */
/* {{{ proto string gmdate(string format [, long timestamp])