[#46922] - [5.4] Error Call to undefined function gregoriantojd() with fa-IR
- New
- Medium
- Build: 5.4-dev
- # 46922
Steps to reproduce the issue
- Fresh 5.4-dev installation
- Install language Persian (Iran)
fa-IR - Create second super user with
fa-IRset as frontend language - Create an article and feature it
- Open home, login as second super user to see home with the featured article in persian
Expected result
- Home with featured article is shown in persian
Actual result
- Error Uncaught Throwable of type Error thrown with message "Call to undefined function gregoriantojd()"
System information (as much as possible)
- Tested with JBT
Stack Trace
2026-02-19T09:16:24+00:00 CRITICAL 192.168.65.1 error Uncaught Throwable of type Error thrown with message "Call to undefined function gregoriantojd()". Stack trace: #0 [ROOT]/libraries/src/HTML/HTMLHelper.php(963): fa_IRDate->calendar('c', true)
#1 [ROOT]/libraries/src/HTML/HTMLHelper.php(307): Joomla\CMS\HTML\HTMLHelper::date('2026-02-19 09:1...', 'c')
#2 [ROOT]/libraries/src/HTML/HTMLHelper.php(195): Joomla\CMS\HTML\HTMLHelper::call(Array, Array)
#3 [ROOT]/layouts/joomla/content/info_block/publish_date.php(19): Joomla\CMS\HTML\HTMLHelper::_('joomla\\cms\\html...', '2026-02-19 09:1...', 'c')
#4 [ROOT]/libraries/src/Layout/FileLayout.php(128): include('[ROOT]/l...')
#5 [ROOT]/libraries/src/Layout/FileLayout.php(636): Joomla\CMS\Layout\FileLayout->render(Array)
#6 [ROOT]/layouts/joomla/content/info_block.php(52): Joomla\CMS\Layout\FileLayout->sublayout('joomla.content....', Array)
#7 [ROOT]/libraries/src/Layout/FileLayout.php(128): include('[ROOT]/l...')
#8 [ROOT]/libraries/src/Layout/LayoutHelper.php(76): Joomla\CMS\Layout\FileLayout->render(Array)
#9 [ROOT]/components/com_content[TMP]l/featured/default_item.php(78): Joomla\CMS\Layout\LayoutHelper::render('joomla.content....', Array)
#10 [ROOT]/libraries/src/MVC/View/HtmlView.php(416): include('[ROOT]/c...')
#11 [ROOT]/components/com_content[TMP]l/featured/default.php(30): Joomla\CMS\MVC\View\HtmlView->loadTemplate(NULL)
#12 [ROOT]/libraries/src/MVC/View/HtmlView.php(416): include('[ROOT]/c...')
#13 [ROOT]/libraries/src/MVC/View/HtmlView.php(204): Joomla\CMS\MVC\View\HtmlView->loadTemplate(NULL)
#14 [ROOT]/components/com_content/src/View/Featured/HtmlView.php(200): Joomla\CMS\MVC\View\HtmlView->display(NULL)
#15 [ROOT]/libraries/src/MVC/Controller/BaseController.php(697): Joomla\Component\Content\Site\View\Featured\HtmlView->display()
#16 [ROOT]/components/com_content/src/Controller/DisplayController.php(123): Joomla\CMS\MVC\Controller\BaseController->display(false, Array)
#17 [ROOT]/libraries/src/MVC/Controller/BaseController.php(730): Joomla\Component\Content\Site\Controller\DisplayController->display()
#18 [ROOT]/libraries/src/Dispatcher/ComponentDispatcher.php(143): Joomla\CMS\MVC\Controller\BaseController->execute('display')
#19 [ROOT]/components/com_content/src/Dispatcher/Dispatcher.php(56): Joomla\CMS\Dispatcher\ComponentDispatcher->dispatch()
#20 [ROOT]/libraries/src/Component/ComponentHelper.php(361): Joomla\Component\Content\Site\Dispatcher\Dispatcher->dispatch()
#21 [ROOT]/libraries/src/Application/SiteApplication.php(217): Joomla\CMS\Component\ComponentHelper::renderComponent('com_content')
#22 [ROOT]/libraries/src/Application/SiteApplication.php(271): Joomla\CMS\Application\SiteApplication->dispatch()
#23 [ROOT]/libraries/src/Application/CMSApplication.php(320): Joomla\CMS\Application\SiteApplication->doExecute()
#24 [ROOT]/includes/app.php(58): Joomla\CMS\Application\CMSApplication->execute()
#25 [ROOT]/index.php(51): require_once('[ROOT]/i...')
#26 {main}
Additional comments
- Same with 6.0-dev
- Found in testing #46910 (but it is unrelated to this PR)
joomla-cms-bot
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This sounds like a server config issue not a joomla issue. It would appear that you do not have the php calendar extension
Thank you @brianteeman for the hint. Another test with en-GB, de-DE, fa-IR, ur-PK and 'Multilingual Sample Data' installed. Only /fa crashes. The other RTL language Urdu works.
However, you are right, the calendar PHP extension wasn't installed. After docker-php-ext-install calendar and restart, the problem is fixed.
@HLeithner Should calendar be added to the required PHP modules in Technical Requirements?
The other languages didn't give you any error as this is noth8ng to do with the language and only to do with non Gregorian calendars
That’s why we don’t require that. But a better error message could be nice, telling that the PHP calendar extension is missing and that it’s needed for non Gregorian calendars.
As far as I know the calling code is part of the language pack, so it’s nothing we can fix in the core.
fyi The calendar extension is not required on windows environments as its built in for windows php builds.
Hello mentainers,
I'm Dhanashri Jadhav, a GSOC aspirant.
Eager to contribute to GSoC projects & actively participate in Joomla.
Looking forward to collaborating & learing from all of you.
Thank you!
Dear @Jadhav-Dhanashri, all GSoC-related topics are discussed in the Mattermost channel Google Summer of Code 2026 - Joomla!. Please use issues and PR comments only for discussion directly related to this issue/PR.
This sounds like a server config issue not a joomla issue. It would appear that you do not have the php calendar extension