Symfony Date to Hijri date conversion in twig file - datetime

Question

In symfony template we can use the formatters like
{{ news.created|date('Y-m-d') }}
I need something similar for the hijri date conversion. Meaning I provide the date in gregorian and it convert it to hijri in the twig template file may be something like
{{ news.created|hijridate }}
I searched a lot on forums etc but did not find something relevant specifically in twig template.

Answer 1

After not finding any solution I make my own twig extension. I am pasting it hopefully it will help any one the input is the date object like
{{ newsitem.created|hdate }} and ouput is
الأربعاء 10 رمضان 1437 هـ
Write a twig extension in src/AppBundle/Twig/HdateExtension.php with the following code.
<?php
namespace AppBundle\Twig;
class HdateExtension extends \Twig_Extension
{
public function getFilters()
{
return array(
new \Twig_SimpleFilter('hdate', array($this, 'hdateConvert') )
);
}
public function hdateConvert($date)
{
if($date instanceof \DateTime){
$dateDay = $date->format('N');
$date->modify('+1 day');
$year = $date->format('Y');
$month = $date->format('m');
$day = $date->format('d');
}
$dayH = array("الأثنين","الثلاثاء","الأربعاء","الخميس","الجمعة","السبت","الأحد");
// actual calculation
$newDate = $dayH[$dateDay-1]." ".HdateExtension::Greg2Hijri($day, $month, $year, true );
return $newDate;
}
public function getName()
{
return 'hdate_extension';
}
public function Greg2Hijri($day, $month, $year, $string = false)
{
$day = (int) $day;
$month = (int) $month;
$year = (int) $year;
if (($year > 1582) or (($year == 1582) and ($month > 10)) or (($year == 1582) and ($month == 10) and ($day > 14)))
{
$jd = HdateExtension::intPart((1461*($year+4800+HdateExtension::intPart(($month-14)/12)))/4)+HdateExtension::intPart((367*($month-2-12*(HdateExtension::intPart(($month-14)/12))))/12)-
HdateExtension::intPart( (3* (HdateExtension::intPart( ($year+4900+ HdateExtension::intPart( ($month-14)/12) )/100) ) ) /4)+$day-32075;
}
else
{
$jd = 367*$year-HdateExtension::intPart((7*($year+5001+HdateExtension::intPart(($month-9)/7)))/4)+HdateExtension::intPart((275*$month)/9)+$day+1729777;
}
$l = $jd-1948440+10632;
$n = HdateExtension::intPart(($l-1)/10631);
$l = $l-10631*$n+354;
$j = (HdateExtension::intPart((10985-$l)/5316))*(HdateExtension::intPart((50*$l)/17719))+(HdateExtension::intPart($l/5670))*(HdateExtension::intPart((43*$l)/15238));
$l = $l-(HdateExtension::intPart((30-$j)/15))*(HdateExtension::intPart((17719*$j)/50))-(HdateExtension::intPart($j/16))*(HdateExtension::intPart((15238*$j)/43))+29;
$month = HdateExtension::intPart((24*$l)/709);
$day = $l-HdateExtension::intPart((709*$month)/24);
$year = 30*$n+$j-30;
$mname = array("محرّم","صفر","ربيع الأوّل"," ربيع الثاني","جمادى الأولى","جمادى الثانية","رجب","شعبان","رمضان","شوّال","ذو القعدة","ذو الحجّة");
$date = array();
$date['year'] = $year;
$date['month'] = $mname[$month-1];
$month = $mname[$month-1];
$date['day'] = $day;
if (!$string)
return $date;
else
return "{$day} {$month} {$year} هـ ";
}
public function intPart($float)
{
if ($float < -0.0000001)
return ceil($float - 0.0000001);
else
return floor($float + 0.0000001);
}
}
Then add the following in the services.yml file
app.twig_extension:
class: AppBundle\Twig\HdateExtension
public: false
tags:
- { name: twig.extension }

Answer 2

thanks for your code,
symfony 5:
<?php
namespace App\Twig;
use Exception;
use Twig\Extension\AbstractExtension;
use Twig\TwigFilter;
class HdateExtension extends AbstractExtension {
/**
* #return TwigFilter[]
*/
public function getFilters(): array {
return [
new TwigFilter(
'hdate', [
$this, 'hdateConvert'
])
];
}
/**
* #param $arg
* #return string
* #throws Exception
*/
public function hdateConvert($arg): string {
if ($arg instanceof \DateTime) {
$dayNumber = $arg->format('N');
$arg->modify('+1 day');
$year = $arg->format('Y');
$month = $arg->format('n');
$day = $arg->format('j');
$dayH = [
"الأثنين",
"الثلاثاء",
"الأربعاء",
"الخميس",
"الجمعة",
"السبت",
"الأحد"
];
return $dayH[$dayNumber - 1] . " " . HdateExtension::Greg2Hijri($day, $month, $year);
}
throw new Exception('Invalid date');
}
/**
* #return string
*/
public function getName(): string {
return 'hdate_extension';
}
/**
* #param int $day
* #param int $month
* #param int $year
* #return string
*/
public function Greg2Hijri(int $day, int $month, int $year): string {
if (
($year > 1582) or
(($year == 1582) and ($month > 10)) or
(($year == 1582) and ($month == 10) and ($day > 14))
) {
$jd = HdateExtension::intPart((1461 * ($year + 4800 + HdateExtension::intPart(($month - 14) / 12))) / 4) + HdateExtension::intPart((367 * ($month - 2 - 12 * (HdateExtension::intPart(($month - 14) / 12)))) / 12) -
HdateExtension::intPart((3 * (HdateExtension::intPart(($year + 4900 + HdateExtension::intPart(($month - 14) / 12)) / 100))) / 4) + $day - 32075;
} else {
$jd = 367 * $year - HdateExtension::intPart((7 * ($year + 5001 + HdateExtension::intPart(($month - 9) / 7))) / 4) + HdateExtension::intPart((275 * $month) / 9) + $day + 1729777;
}
$l = $jd - 1948440 + 10632;
$n = HdateExtension::intPart(($l - 1) / 10631);
$l = $l - 10631 * $n + 354;
$j = (HdateExtension::intPart((10985 - $l) / 5316)) * (HdateExtension::intPart((50 * $l) / 17719)) + (HdateExtension::intPart($l / 5670)) * (HdateExtension::intPart((43 * $l) / 15238));
$l = $l - (HdateExtension::intPart((30 - $j) / 15)) * (HdateExtension::intPart((17719 * $j) / 50)) - (HdateExtension::intPart($j / 16)) * (HdateExtension::intPart((15238 * $j) / 43)) + 29;
$month = HdateExtension::intPart((24 * $l) / 709);
$day = $l - HdateExtension::intPart((709 * $month) / 24);
$year = 30 * $n + $j - 30;
$mname = [
"محرّم",
"صفر",
"ربيع الأوّل",
" ربيع الثاني",
"جمادى الأولى",
"جمادى الثانية",
"رجب",
"شعبان",
"رمضان",
"شوّال",
"ذو القعدة",
"ذو الحجّة"
];
return "{$day} {$mname[$month - 1]} {$year} هـ ";
}
/**
* #param $float
* #return false|float
*/
private function intPart($float) {
if ($float < -0.0000001)
return ceil($float - 0.0000001);
else
return floor($float + 0.0000001);
}
}