root/ext/intl/calendar/calendar_methods.cpp

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DEFINITIONS

This source file includes following definitions.
  1. PHP_METHOD
  2. PHP_FUNCTION
  3. count
  4. snext
  5. next
  6. reset
  7. UOBJECT_DEFINE_RTTI_IMPLEMENTATION
  8. PHP_FUNCTION
  9. PHP_FUNCTION
  10. _php_intlcal_field_uec_ret_in32t_method
  11. PHP_FUNCTION
  12. PHP_FUNCTION
  13. PHP_FUNCTION
  14. PHP_FUNCTION
  15. PHP_FUNCTION
  16. _php_intlcal_before_after
  17. PHP_FUNCTION
  18. PHP_FUNCTION
  19. PHP_FUNCTION
  20. PHP_FUNCTION
  21. PHP_FUNCTION
  22. PHP_FUNCTION
  23. PHP_FUNCTION
  24. PHP_FUNCTION
  25. PHP_FUNCTION
  26. PHP_FUNCTION
  27. _php_intlcal_field_ret_in32t_method
  28. PHP_FUNCTION
  29. PHP_FUNCTION
  30. PHP_FUNCTION
  31. PHP_FUNCTION
  32. PHP_FUNCTION
  33. PHP_FUNCTION
  34. PHP_FUNCTION
  35. PHP_FUNCTION
  36. PHP_FUNCTION
  37. PHP_FUNCTION
  38. PHP_FUNCTION
  39. PHP_FUNCTION
  40. PHP_FUNCTION
  41. PHP_FUNCTION
  42. PHP_FUNCTION
  43. PHP_FUNCTION
  44. PHP_FUNCTION
  45. PHP_FUNCTION
  46. PHP_FUNCTION
  47. PHP_FUNCTION
  48. PHP_FUNCTION
  49. PHP_FUNCTION
  50. PHP_FUNCTION
  51. PHP_FUNCTION
  52. PHP_FUNCTION
  53. PHP_FUNCTION

/*
   +----------------------------------------------------------------------+
   | PHP Version 5                                                        |
   +----------------------------------------------------------------------+
   | 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: Gustavo Lopes <cataphract@php.net>                          |
   +----------------------------------------------------------------------+
*/

#ifdef HAVE_CONFIG_H
#include "config.h"
#endif

#include "../intl_cppshims.h"

#include <unicode/locid.h>
#include <unicode/calendar.h>
#include <unicode/ustring.h>

#include "../intl_convertcpp.h"
#include "../common/common_date.h"

extern "C" {
#include "../php_intl.h"
#define USE_TIMEZONE_POINTER 1
#include "../timezone/timezone_class.h"
#define USE_CALENDAR_POINTER 1
#include "calendar_class.h"
#include "../intl_convert.h"
#include <zend_exceptions.h>
#include <zend_interfaces.h>
#include <ext/date/php_date.h>
}
#include "../common/common_enum.h"

U_CFUNC PHP_METHOD(IntlCalendar, __construct)
{
        zend_throw_exception( NULL,
                "An object of this type cannot be created with the new operator",
                0 TSRMLS_CC );
}

U_CFUNC PHP_FUNCTION(intlcal_create_instance)
{
        zval            **zv_timezone   = NULL;
        const char      *locale_str             = NULL;
        int                     dummy;
        TimeZone        *timeZone;
        UErrorCode      status                  = U_ZERO_ERROR;
        intl_error_reset(NULL TSRMLS_CC);

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "|Zs!",
                        &zv_timezone, &locale_str, &dummy) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_create_calendar: bad arguments", 0 TSRMLS_CC);
                RETURN_NULL();
        }

        timeZone = timezone_process_timezone_argument(zv_timezone, NULL,
                "intlcal_create_instance" TSRMLS_CC);
        if (timeZone == NULL) {
                RETURN_NULL();
        }

        if (!locale_str) {
                locale_str = intl_locale_get_default(TSRMLS_C);
        }

        Calendar *cal = Calendar::createInstance(timeZone,
                Locale::createFromName(locale_str), status);
        if (cal == NULL) {
                delete timeZone;
                intl_error_set(NULL, status, "Error creating ICU Calendar object", 0 TSRMLS_CC);
                RETURN_NULL();
        }

        calendar_object_create(return_value, cal TSRMLS_CC);
}

#if U_ICU_VERSION_MAJOR_NUM * 10 + U_ICU_VERSION_MINOR_NUM >= 42
class BugStringCharEnumeration : public StringEnumeration
{
public:
        BugStringCharEnumeration(UEnumeration* _uenum) : uenum(_uenum) {}

        ~BugStringCharEnumeration()
        {
                uenum_close(uenum);
        }

        int32_t count(UErrorCode& status) const {
                return uenum_count(uenum, &status);
        }

        virtual const UnicodeString* snext(UErrorCode& status)
        {
                int32_t length;
                const UChar* str = uenum_unext(uenum, &length, &status);
                if (str == 0 || U_FAILURE(status)) {
                        return 0;
                }
                return &unistr.setTo(str, length);
        }

        virtual const char* next(int32_t *resultLength, UErrorCode &status)
        {
                int32_t length = -1;
                const char* str = uenum_next(uenum, &length, &status);
                if (str == 0 || U_FAILURE(status)) {
                        return 0;
                }
                if (resultLength) {
                        //the bug is that uenum_next doesn't set the length
                        *resultLength = (length == -1) ? strlen(str) : length;
                }

                return str;
        }

        void reset(UErrorCode& status)
        {
                uenum_reset(uenum, &status);
        }

        virtual UClassID getDynamicClassID() const;

        static UClassID U_EXPORT2 getStaticClassID();

private:
        UEnumeration *uenum;
};
UOBJECT_DEFINE_RTTI_IMPLEMENTATION(BugStringCharEnumeration)

U_CFUNC PHP_FUNCTION(intlcal_get_keyword_values_for_locale)
{
        UErrorCode      status = U_ZERO_ERROR;
        char            *key,
                                *locale;
        int                     key_len,
                                locale_len;
        zend_bool       commonly_used;
        intl_error_reset(NULL TSRMLS_CC);

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "ssb",
                        &key, &key_len, &locale, &locale_len, &commonly_used) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_keyword_values_for_locale: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        //does not work; see ICU bug 9194
#if 0
        StringEnumeration *se = Calendar::getKeywordValuesForLocale(key,
                Locale::createFromName(locale), (UBool)commonly_used,
                status);
        if (se == NULL) {
                intl_error_set(NULL, status, "intlcal_get_keyword_values_for_locale: "
                        "error calling underlying method", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
#else
    UEnumeration *uenum = ucal_getKeywordValuesForLocale(
                key, locale, !!commonly_used, &status);
    if (U_FAILURE(status)) {
        uenum_close(uenum);
                intl_error_set(NULL, status, "intlcal_get_keyword_values_for_locale: "
                        "error calling underlying method", 0 TSRMLS_CC);
        RETURN_FALSE;
    }

    StringEnumeration *se = new BugStringCharEnumeration(uenum);
#endif

        IntlIterator_from_StringEnumeration(se, return_value TSRMLS_CC);
}
#endif //ICU 4.2 only

U_CFUNC PHP_FUNCTION(intlcal_get_now)
{
        intl_error_reset(NULL TSRMLS_CC);

        if (zend_parse_parameters_none() == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_now: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        RETURN_DOUBLE((double)Calendar::getNow());
}

U_CFUNC PHP_FUNCTION(intlcal_get_available_locales)
{
        intl_error_reset(NULL TSRMLS_CC);

        if (zend_parse_parameters_none() == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_available_locales: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        int32_t count;
        const Locale *availLocales = Calendar::getAvailableLocales(count);
        array_init(return_value);
        for (int i = 0; i < count; i++) {
                Locale locale = availLocales[i];
                add_next_index_string(return_value, locale.getName(), 1);
        }
}

static void _php_intlcal_field_uec_ret_in32t_method(
                int32_t (Calendar::*func)(UCalendarDateFields, UErrorCode&) const,
                const char *method_name,
                INTERNAL_FUNCTION_PARAMETERS)
{
        long    field;
        char    *message;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &field) == FAILURE) {
                spprintf(&message, 0, "%s: bad arguments", method_name);
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                efree(message);
                RETURN_FALSE;
        }

        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                spprintf(&message, 0, "%s: invalid field", method_name);
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                efree(message);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t result = (co->ucal->*func)(
                (UCalendarDateFields)field, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "Call to ICU method has failed");

        RETURN_LONG((long)result);
}

U_CFUNC PHP_FUNCTION(intlcal_get)
{
        _php_intlcal_field_uec_ret_in32t_method(&Calendar::get,
                "intlcal_get", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_time)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",
                        &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_time: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        UDate result = co->ucal->getTime(CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_get_time: error calling ICU Calendar::getTime");

        RETURN_DOUBLE((double)result);
}

U_CFUNC PHP_FUNCTION(intlcal_set_time)
{
        double  time_arg;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "Od",
                        &object, Calendar_ce_ptr, &time_arg) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_time: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setTime((UDate)time_arg, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "Call to underlying method failed");
        
        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_add)
{
        long    field,
                        amount;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Oll", &object, Calendar_ce_ptr, &field, &amount) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_add: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        
        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_add: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        if (amount < INT32_MIN || amount > INT32_MAX) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_add: amount out of bounds", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->add((UCalendarDateFields)field, (int32_t)amount, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "intlcal_add: Call to underlying method failed");

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_set_time_zone)
{
        zval                    *zv_timezone;
        TimeZone                *timeZone;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Oz!", &object, Calendar_ce_ptr, &zv_timezone) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_time_zone: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        if (zv_timezone == NULL) {
                RETURN_TRUE; /* the method does nothing if passed null */
        }
        
        timeZone = timezone_process_timezone_argument(&zv_timezone,
                CALENDAR_ERROR_P(co), "intlcal_set_time_zone" TSRMLS_CC);
        if (timeZone == NULL) {
                RETURN_FALSE;
        }

        co->ucal->adoptTimeZone(timeZone);

        RETURN_TRUE;
}


static void _php_intlcal_before_after(
                UBool (Calendar::*func)(const Calendar&, UErrorCode&) const,
                INTERNAL_FUNCTION_PARAMETERS)
{
        zval                    *when_object;
        Calendar_object *when_co;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "OO", &object, Calendar_ce_ptr, &when_object, Calendar_ce_ptr)
                        == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_before/after: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;
        
        when_co = static_cast<Calendar_object*>(
                zend_object_store_get_object(when_object TSRMLS_CC));
        if (when_co->ucal == NULL) {
                intl_errors_set(&co->err, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_before/after: Other IntlCalendar was unconstructed", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        UBool res = (co->ucal->*func)(*when_co->ucal, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "intlcal_before/after: Error calling ICU method");

        RETURN_BOOL((int)res);
}

U_CFUNC PHP_FUNCTION(intlcal_after)
{
        _php_intlcal_before_after(&Calendar::after, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_before)
{
        _php_intlcal_before_after(&Calendar::before, INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_set)
{
        long    arg1, arg2, arg3, arg4, arg5, arg6;
        zval    **args_a[7] = {0},
                        ***args         = &args_a[0];
        int             i;
        int             variant; /* number of args of the set() overload */
        CALENDAR_METHOD_INIT_VARS;

        /* must come before zpp because zpp would convert the args in the stack to 0 */
        if (ZEND_NUM_ARGS() > (getThis() ? 6 : 7) ||
                                zend_get_parameters_array_ex(ZEND_NUM_ARGS(), args) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set: too many arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        if (!getThis()) {
                args++;
        }
        variant = ZEND_NUM_ARGS() - (getThis() ? 0 : 1);
        while (variant > 2 && Z_TYPE_PP(args[variant - 1]) == IS_NULL) {
                variant--;
        }

        if (variant == 4 ||
                        zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Oll|llll",     &object, Calendar_ce_ptr, &arg1, &arg2, &arg3, &arg4,
                        &arg5, &arg6) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        
        for (i = 0; i < variant; i++) {
                if (Z_LVAL_PP(args[i]) < INT32_MIN || Z_LVAL_PP(args[i]) > INT32_MAX) {
                        intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                                "intlcal_set: at least one of the arguments has an absolute "
                                "value that is too large", 0 TSRMLS_CC);
                        RETURN_FALSE;
                }
        }

        if (variant == 2 && (arg1 < 0 || arg1 >= UCAL_FIELD_COUNT)) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        if (variant == 2) {
                co->ucal->set((UCalendarDateFields)arg1, (int32_t)arg2);
        } else if (variant == 3) {
                co->ucal->set((int32_t)arg1, (int32_t)arg2, (int32_t)arg3);
        } else if (variant == 5) {
                co->ucal->set((int32_t)arg1, (int32_t)arg2, (int32_t)arg3, (int32_t)arg4, (int32_t)arg5);
        } else if (variant == 6) {
                co->ucal->set((int32_t)arg1, (int32_t)arg2, (int32_t)arg3, (int32_t)arg4, (int32_t)arg5, (int32_t)arg6);
        }
        
        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_roll)
{
        long            field,
                                value;
        zval            **args_a[3]              = {0},
                                ***args                  = &args_a[0];
        zend_bool       bool_variant_val = (zend_bool)-1;
        CALENDAR_METHOD_INIT_VARS;

        if (ZEND_NUM_ARGS() > (getThis() ? 2 :3) ||
                        zend_get_parameters_array_ex(ZEND_NUM_ARGS(), args) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set: too many arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        if (!getThis()) {
                args++;
        }
        if (args[1] != NULL && Z_TYPE_PP(args[1]) == IS_BOOL) {
                if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                                "Olb", &object, Calendar_ce_ptr, &field, &bool_variant_val)
                                == FAILURE) {
                        intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                                "intlcal_roll: bad arguments", 0 TSRMLS_CC);
                        RETURN_FALSE;
                }
                bool_variant_val = Z_BVAL_PP(args[1]);
        } else if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Oll", &object, Calendar_ce_ptr, &field, &value) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_roll: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_roll: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        if (bool_variant_val == (zend_bool)-1 &&
                        (value < INT32_MIN || value > INT32_MAX)) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_roll: value out of bounds", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        if (bool_variant_val != (zend_bool)-1) {
                co->ucal->roll((UCalendarDateFields)field, (UBool)bool_variant_val,
                        CALENDAR_ERROR_CODE(co));
        } else {
                co->ucal->roll((UCalendarDateFields)field, (int32_t)value,
                        CALENDAR_ERROR_CODE(co));
        }
        INTL_METHOD_CHECK_STATUS(co, "intlcal_roll: Error calling ICU Calendar::roll");

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_clear)
{
        zval    **args_a[2] = {0},
                        ***args         = &args_a[0];
        long    field;
        int             variant;
        CALENDAR_METHOD_INIT_VARS;

        if (ZEND_NUM_ARGS() > (getThis() ? 1 : 2) ||
                        zend_get_parameters_array_ex(ZEND_NUM_ARGS(), args) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_clear: too many arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        if (!getThis()) {
                args++;
        }
        if (args[0] == NULL || Z_TYPE_PP(args[0]) == IS_NULL) {
                zval *dummy; /* we know it's null */
                if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
                                getThis(), "O|z", &object, Calendar_ce_ptr, &dummy) == FAILURE) {
                        intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                                "intlcal_clear: bad arguments", 0 TSRMLS_CC);
                        RETURN_FALSE;
                }
                variant = 0;
        } else if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC,
                        getThis(), "Ol", &object, Calendar_ce_ptr, &field) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_clear: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        } else if (field < 0 || field >= UCAL_FIELD_COUNT) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_clear: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        } else {
                variant = 1;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        if (variant == 0) {
                co->ucal->clear();
        } else {
                co->ucal->clear((UCalendarDateFields)field);
        }

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_field_difference)
{
        long    field;
        double  when;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Odl", &object, Calendar_ce_ptr, &when, &field) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_field_difference: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_field_difference: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t result = co->ucal->fieldDifference((UDate)when,
                (UCalendarDateFields)field, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_field_difference: Call to ICU method has failed");

        RETURN_LONG((long)result);
}

U_CFUNC PHP_FUNCTION(intlcal_get_actual_maximum)
{
        _php_intlcal_field_uec_ret_in32t_method(&Calendar::getActualMaximum,
                "intlcal_get_actual_maximum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_actual_minimum)
{
        _php_intlcal_field_uec_ret_in32t_method(&Calendar::getActualMinimum,
                "intlcal_get_actual_minimum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

#if U_ICU_VERSION_MAJOR_NUM * 10 + U_ICU_VERSION_MINOR_NUM >= 44
U_CFUNC PHP_FUNCTION(intlcal_get_day_of_week_type)
{
        long    dow;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &dow) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_day_of_week_type: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (dow < UCAL_SUNDAY || dow > UCAL_SATURDAY) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_day_of_week_type: invalid day of week", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t result = co->ucal->getDayOfWeekType(
                (UCalendarDaysOfWeek)dow, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_get_day_of_week_type: Call to ICU method has failed");

        RETURN_LONG((long)result);
}
#endif

U_CFUNC PHP_FUNCTION(intlcal_get_first_day_of_week)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_first_day_of_week: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t result = co->ucal->getFirstDayOfWeek(CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_get_first_day_of_week: Call to ICU method has failed");

        RETURN_LONG((long)result);
}

static void _php_intlcal_field_ret_in32t_method(
                int32_t (Calendar::*func)(UCalendarDateFields) const,
                const char *method_name,
                INTERNAL_FUNCTION_PARAMETERS)
{
        long    field;
        char    *message;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &field) == FAILURE) {
                spprintf(&message, 0, "%s: bad arguments", method_name);
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                efree(message);
                RETURN_FALSE;
        }

        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                spprintf(&message, 0, "%s: invalid field", method_name);
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, message, 1 TSRMLS_CC);
                efree(message);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t result = (co->ucal->*func)((UCalendarDateFields)field);
        INTL_METHOD_CHECK_STATUS(co, "Call to ICU method has failed");

        RETURN_LONG((long)result);
}

U_CFUNC PHP_FUNCTION(intlcal_get_greatest_minimum)
{
        _php_intlcal_field_ret_in32t_method(&Calendar::getGreatestMinimum,
                "intlcal_get_greatest_minimum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_least_maximum)
{
        _php_intlcal_field_ret_in32t_method(&Calendar::getLeastMaximum,
                "intlcal_get_least_maximum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_locale)
{
        long    locale_type;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &locale_type) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_locale: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (locale_type != ULOC_ACTUAL_LOCALE && locale_type != ULOC_VALID_LOCALE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_locale: invalid locale type", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        Locale locale = co->ucal->getLocale((ULocDataLocaleType)locale_type,
                CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_get_locale: Call to ICU method has failed");

        RETURN_STRING(locale.getName(), 1);
}

U_CFUNC PHP_FUNCTION(intlcal_get_maximum)
{
        _php_intlcal_field_ret_in32t_method(&Calendar::getMaximum,
                "intlcal_get_maximum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_minimal_days_in_first_week)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_minimal_days_in_first_week: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        uint8_t result = co->ucal->getMinimalDaysInFirstWeek();
        INTL_METHOD_CHECK_STATUS(co,
                "intlcal_get_first_day_of_week: Call to ICU method has failed");

        RETURN_LONG((long)result);
}

U_CFUNC PHP_FUNCTION(intlcal_get_minimum)
{
        _php_intlcal_field_ret_in32t_method(&Calendar::getMinimum,
                "intlcal_get_minimum", INTERNAL_FUNCTION_PARAM_PASSTHRU);
}

U_CFUNC PHP_FUNCTION(intlcal_get_time_zone)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_time_zone: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        TimeZone *tz = co->ucal->getTimeZone().clone();
        if (tz == NULL) {
                intl_errors_set(CALENDAR_ERROR_P(co), U_MEMORY_ALLOCATION_ERROR,
                        "intlcal_get_time_zone: could not clone TimeZone", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        timezone_object_construct(tz, return_value, 1 TSRMLS_CC);
}

U_CFUNC PHP_FUNCTION(intlcal_get_type)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_type: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_STRING(co->ucal->getType(), 1);
}

#if U_ICU_VERSION_MAJOR_NUM * 10 + U_ICU_VERSION_MINOR_NUM >= 44
U_CFUNC PHP_FUNCTION(intlcal_get_weekend_transition)
{
        long    dow;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &dow) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_weekend_transition: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (dow < UCAL_SUNDAY || dow > UCAL_SATURDAY) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_weekend_transition: invalid day of week", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        int32_t res = co->ucal->getWeekendTransition((UCalendarDaysOfWeek)dow,
                CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "intlcal_get_weekend_transition: "
                "Error calling ICU method");

        RETURN_LONG((long)res);
}
#endif

U_CFUNC PHP_FUNCTION(intlcal_in_daylight_time)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_in_daylight_time: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        UBool ret = co->ucal->inDaylightTime(CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "intlcal_in_daylight_time: "
                "Error calling ICU method");

        RETURN_BOOL((int)ret);
}

U_CFUNC PHP_FUNCTION(intlcal_is_equivalent_to)
{
        zval                    *other_object;
        Calendar_object *other_co;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "OO", &object, Calendar_ce_ptr, &other_object, Calendar_ce_ptr)
                        == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_is_equivalent_to: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        other_co = (Calendar_object*)zend_object_store_get_object(other_object TSRMLS_CC);
        if (other_co->ucal == NULL) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR, "intlcal_is_equivalent_to:"
                        " Other IntlCalendar is unconstructed", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_BOOL((int)co->ucal->isEquivalentTo(*other_co->ucal));
}

U_CFUNC PHP_FUNCTION(intlcal_is_lenient)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_is_lenient: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_BOOL((int)co->ucal->isLenient());
}

U_CFUNC PHP_FUNCTION(intlcal_is_set)
{
        long field;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &field) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_is_set: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (field < 0 || field >= UCAL_FIELD_COUNT) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_is_set: invalid field", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_BOOL((int)co->ucal->isSet((UCalendarDateFields)field));
}

#if U_ICU_VERSION_MAJOR_NUM * 10 + U_ICU_VERSION_MINOR_NUM >= 44
U_CFUNC PHP_FUNCTION(intlcal_is_weekend)
{
        double date;
        zval *rawDate = NULL;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters_ex(ZEND_PARSE_PARAMS_QUIET,
                        ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O|z!", &object, Calendar_ce_ptr, &rawDate) == FAILURE
                        || (rawDate != NULL &&
                                zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                                "O|d", &object, Calendar_ce_ptr, &date) == FAILURE)) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_is_weekend: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        if (rawDate == NULL) {
                RETURN_BOOL((int)co->ucal->isWeekend());
        } else {
                UBool ret = co->ucal->isWeekend((UDate)date, CALENDAR_ERROR_CODE(co));
                INTL_METHOD_CHECK_STATUS(co, "intlcal_is_weekend: "
                        "Error calling ICU method");
                RETURN_BOOL((int)ret);
        }
}
#endif


U_CFUNC PHP_FUNCTION(intlcal_set_first_day_of_week)
{
        long    dow;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &dow) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_first_day_of_week: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (dow < UCAL_SUNDAY || dow > UCAL_SATURDAY) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_first_day_of_week: invalid day of week", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setFirstDayOfWeek((UCalendarDaysOfWeek)dow);

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_set_lenient)
{
        zend_bool is_lenient;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ob", &object, Calendar_ce_ptr, &is_lenient) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_lenient: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setLenient((UBool) is_lenient);

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_set_minimal_days_in_first_week)
{
        long    num_days;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &num_days) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_minimal_days_in_first_week: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (num_days < 1 || num_days > 7) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_minimal_days_in_first_week: invalid number of days; "
                        "must be between 1 and 7", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setMinimalDaysInFirstWeek((uint8_t)num_days);

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_equals)
{
        zval                    *other_object;
        Calendar_object *other_co;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "OO", &object, Calendar_ce_ptr, &other_object, Calendar_ce_ptr)
                        == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_equals: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;
        other_co = (Calendar_object *) zend_object_store_get_object(other_object TSRMLS_CC);
        if (other_co->ucal == NULL) {
                intl_errors_set(&co->err, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_equals: The second IntlCalendar is unconstructed", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        UBool result = co->ucal->equals(*other_co->ucal, CALENDAR_ERROR_CODE(co));
        INTL_METHOD_CHECK_STATUS(co, "intlcal_equals: error calling ICU Calendar::equals");

        RETURN_BOOL((int)result);
}

#if U_ICU_VERSION_MAJOR_NUM >= 49

U_CFUNC PHP_FUNCTION(intlcal_get_repeated_wall_time_option)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_repeated_wall_time_option: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_LONG(co->ucal->getRepeatedWallTimeOption());
}

U_CFUNC PHP_FUNCTION(intlcal_get_skipped_wall_time_option)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "O", &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_skipped_wall_time_option: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        RETURN_LONG(co->ucal->getSkippedWallTimeOption());
}

U_CFUNC PHP_FUNCTION(intlcal_set_repeated_wall_time_option)
{
        long    option;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &option) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_repeated_wall_time_option: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (option != UCAL_WALLTIME_FIRST && option != UCAL_WALLTIME_LAST) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_repeated_wall_time_option: invalid option", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setRepeatedWallTimeOption((UCalendarWallTimeOption)option);

        RETURN_TRUE;
}

U_CFUNC PHP_FUNCTION(intlcal_set_skipped_wall_time_option)
{
        long    option;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(),
                        "Ol", &object, Calendar_ce_ptr, &option) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_skipped_wall_time_option: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        if (option != UCAL_WALLTIME_FIRST && option != UCAL_WALLTIME_LAST
                        && option != UCAL_WALLTIME_NEXT_VALID) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_set_skipped_wall_time_option: invalid option", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        co->ucal->setSkippedWallTimeOption((UCalendarWallTimeOption)option);

        RETURN_TRUE;
}

#endif

U_CFUNC PHP_FUNCTION(intlcal_from_date_time)
{
        zval                    **zv_arg,
                                        *zv_datetime            = NULL,
                                        *zv_timestamp           = NULL;
        php_date_obj    *datetime;
        char                    *locale_str                     = NULL;
        int                             locale_str_len;
        TimeZone                *timeZone;
        UErrorCode              status                          = U_ZERO_ERROR;
        Calendar        *cal;
        intl_error_reset(NULL TSRMLS_CC);

        if (zend_parse_parameters(ZEND_NUM_ARGS() TSRMLS_CC, "Z|s!",
                        &zv_arg, &locale_str, &locale_str_len) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_from_date_time: bad arguments", 0 TSRMLS_CC);
                RETURN_NULL();
        }

        if (!(Z_TYPE_PP(zv_arg) == IS_OBJECT && instanceof_function(
                        Z_OBJCE_PP(zv_arg), php_date_get_date_ce() TSRMLS_CC))) {
                ALLOC_INIT_ZVAL(zv_datetime);
                object_init_ex(zv_datetime, php_date_get_date_ce());
                zend_call_method_with_1_params(&zv_datetime, NULL, NULL, "__construct",
                        NULL, *zv_arg);
                if (EG(exception)) {
                        zend_object_store_ctor_failed(zv_datetime TSRMLS_CC);
                        goto error;
                }
        } else {
                zv_datetime = *zv_arg;
        }

        datetime = (php_date_obj*)zend_object_store_get_object(zv_datetime TSRMLS_CC);
        if (!datetime->time) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_from_date_time: DateTime object is unconstructed",
                        0 TSRMLS_CC);
                goto error;
        }

        zend_call_method_with_0_params(&zv_datetime, php_date_get_date_ce(),
                NULL, "gettimestamp", &zv_timestamp);
        if (!zv_timestamp || Z_TYPE_P(zv_timestamp) != IS_LONG) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_from_date_time: bad DateTime; call to "
                        "DateTime::getTimestamp() failed", 0 TSRMLS_CC);
                goto error;
        }

        if (!datetime->time->is_localtime) {
                timeZone = TimeZone::getGMT()->clone();
        } else {
                timeZone = timezone_convert_datetimezone(datetime->time->zone_type,
                        datetime, 1, NULL, "intlcal_from_date_time" TSRMLS_CC);
                if (timeZone == NULL) {
                        goto error;
                }
        }

        if (!locale_str) {
                locale_str = const_cast<char*>(intl_locale_get_default(TSRMLS_C));
        }

        cal = Calendar::createInstance(timeZone,
                Locale::createFromName(locale_str), status);
        if (cal == NULL) {
                delete timeZone;
                intl_error_set(NULL, status, "intlcal_from_date_time: "
                                "error creating ICU Calendar object", 0 TSRMLS_CC);
                goto error;
        }
        cal->setTime(((UDate)Z_LVAL_P(zv_timestamp)) * 1000., status);
    if (U_FAILURE(status)) {
                /* time zone was adopted by cal; should not be deleted here */
                delete cal;
                intl_error_set(NULL, status, "intlcal_from_date_time: "
                                "error creating ICU Calendar::setTime()", 0 TSRMLS_CC);
        goto error;
    }

        calendar_object_create(return_value, cal TSRMLS_CC);

error:
        if (zv_datetime != *zv_arg) {
                zval_ptr_dtor(&zv_datetime);
        }
        if (zv_timestamp) {
                zval_ptr_dtor(&zv_timestamp);
        }
}

U_CFUNC PHP_FUNCTION(intlcal_to_date_time)
{
        zval *retval = NULL;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",
                        &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_to_date_time: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        CALENDAR_METHOD_FETCH_OBJECT;

        /* There are no exported functions in ext/date to this
         * in a more native fashion */
        double  date = co->ucal->getTime(CALENDAR_ERROR_CODE(co)) / 1000.;
        int64_t ts;
        char    ts_str[sizeof("@-9223372036854775808")];
        int             ts_str_len;
        zval    ts_zval = zval_used_for_init;

        INTL_METHOD_CHECK_STATUS(co, "Call to ICU method has failed");

        if (date > (double)U_INT64_MAX || date < (double)U_INT64_MIN) {
                intl_errors_set(CALENDAR_ERROR_P(co), U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_to_date_time: The calendar date is out of the "
                        "range for a 64-bit integer", 0 TSRMLS_CC);
                RETURN_FALSE;
        }
        
        ts = (int64_t)date;

        ts_str_len = slprintf(ts_str, sizeof(ts_str), "@%I64d", ts);
        ZVAL_STRINGL(&ts_zval, ts_str, ts_str_len, 0);

        /* Now get the time zone */
        const TimeZone& tz = co->ucal->getTimeZone();
        zval *timezone_zval = timezone_convert_to_datetimezone(
                &tz, CALENDAR_ERROR_P(co), "intlcal_to_date_time" TSRMLS_CC);
        if (timezone_zval == NULL) {
                RETURN_FALSE;
        }

        /* resources allocated from now on */

        /* Finally, instantiate object and call constructor */
        object_init_ex(return_value, php_date_get_date_ce());
        zend_call_method_with_2_params(&return_value, NULL, NULL, "__construct",
                        NULL, &ts_zval, timezone_zval);
        if (EG(exception)) {
                intl_errors_set(CALENDAR_ERROR_P(co), U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_to_date_time: DateTime constructor has thrown exception",
                        1 TSRMLS_CC);
                zend_object_store_ctor_failed(return_value TSRMLS_CC);
                zval_ptr_dtor(&return_value);

                RETVAL_FALSE;
                goto error;
        }

        /* due to bug #40743, we have to set the time zone again */
        zend_call_method_with_1_params(&return_value, NULL, NULL, "settimezone",
                        &retval, timezone_zval);
        if (retval == NULL || Z_TYPE_P(retval) == IS_BOOL) {
                intl_errors_set(CALENDAR_ERROR_P(co), U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_to_date_time: call to DateTime::setTimeZone has failed",
                        1 TSRMLS_CC);
                zval_ptr_dtor(&return_value);
                RETVAL_FALSE;
                goto error;
        }

error:
        zval_ptr_dtor(&timezone_zval);
        if (retval != NULL) {
                zval_ptr_dtor(&retval);
        }
}

U_CFUNC PHP_FUNCTION(intlcal_get_error_code)
{
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",
                        &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set(NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_error_code: bad arguments", 0 TSRMLS_CC);
                RETURN_FALSE;
        }

        /* Fetch the object (without resetting its last error code ). */
        co = (Calendar_object*)zend_object_store_get_object(object TSRMLS_CC);
        if (co == NULL)
                RETURN_FALSE;

        RETURN_LONG((long)CALENDAR_ERROR_CODE(co));
}

U_CFUNC PHP_FUNCTION(intlcal_get_error_message)
{
        const char* message = NULL;
        CALENDAR_METHOD_INIT_VARS;

        if (zend_parse_method_parameters(ZEND_NUM_ARGS() TSRMLS_CC, getThis(), "O",
                        &object, Calendar_ce_ptr) == FAILURE) {
                intl_error_set( NULL, U_ILLEGAL_ARGUMENT_ERROR,
                        "intlcal_get_error_message: bad arguments", 0 TSRMLS_CC );
                RETURN_FALSE;
        }


        /* Fetch the object (without resetting its last error code ). */
        co = (Calendar_object*)zend_object_store_get_object(object TSRMLS_CC);
        if (co == NULL)
                RETURN_FALSE;

        /* Return last error message. */
        message = intl_error_get_message(CALENDAR_ERROR_P(co) TSRMLS_CC);
        RETURN_STRING(message, 0);
}

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