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IntlCalendar::isEquivalentTo

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(PHP 5 >= 5.5.0, PHP 7, PECL >= 3.0.0a1)

IntlCalendar::isEquivalentTo — Whether another calendar is equal but for a different time

Description

Object oriented style

public IntlCalendar::isEquivalentTo ( IntlCalendar $other ) : bool

Procedural style

intlcal_is_equivalent_to ( IntlCalendar $cal , IntlCalendar $other ) : bool

Returns whether this and the given object are equivalent for all purposes except as to the time they have set. The locales do not have to match, as long as no change in behavior results from such mismatch. This includes the timezone, whether the lenient mode is set, the repeated and skipped wall time settings, the days of the week when the weekend starts and ceases and the times where such transitions occur. It may also include other calendar specific settings, such as the Gregorian/Julian transition instant.

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Parameters

cal

The IntlCalendar resource.

other

The other calendar against which the comparison is to be made.

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Return Values

Assuming there are no argument errors, returns TRUE iif the calendars are equivalent except possibly for their set time.

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Examples

Example #1 IntlCalendar::isEquivalentTo()

<?php
$cal1 = IntlCalendar::createInstance('Europe/Lisbon', 'pt_PT');
$cal2 = IntlCalendar::createInstance('Europe/Lisbon', 'es_ES');
$cal2->clear();

var_dump($cal1->isEquivalentTo($cal2)); // true

$cal3 = IntlCalendar::createInstance('Europe/Lisbon', 'en_US');
var_dump($cal1->isEquivalentTo($cal3)); // false
var_dump($cal1->getFirstDayOfWeek(),    // 2 (Monday)
$cal3->getFirstDayOfWeek());            // 1 (Sunday)

The above example will output:

bool(true)
bool(false)
int(2)
int(1)

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See Also

Find a PHP function

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Document created the 30/01/2003, last modified the 26/10/2018
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References

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