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<?php
/**
* See https://github.com/alphp/strftime/blob/master/src/php-8.1-strftime.php
*
*/
namespace PHP81_BC;
defined('_JEXEC') or die('Restricted access');
use DateTime;
use DateTimeZone;
use DateTimeInterface;
use Joomla\CMS\Language\Text;
use IntlDateFormatter;
use IntlGregorianCalendar;
use InvalidArgumentException;
function dayToString($day, $abbr = false)
{
switch ($day) {
case 0:
return $abbr ? Text::_('SUN') : Text::_('SUNDAY');
case 1:
return $abbr ? Text::_('MON') : Text::_('MONDAY');
case 2:
return $abbr ? Text::_('TUE') : Text::_('TUESDAY');
case 3:
return $abbr ? Text::_('WED') : Text::_('WEDNESDAY');
case 4:
return $abbr ? Text::_('THU') : Text::_('THURSDAY');
case 5:
return $abbr ? Text::_('FRI') : Text::_('FRIDAY');
case 6:
return $abbr ? Text::_('SAT') : Text::_('SATURDAY');
}
}
function monthToString($month, $abbr = false)
{
switch ($month) {
case 1:
return $abbr ? Text::_('JANUARY_SHORT') : Text::_('JANUARY');
case 2:
return $abbr ? Text::_('FEBRUARY_SHORT') : Text::_('FEBRUARY');
case 3:
return $abbr ? Text::_('MARCH_SHORT') : Text::_('MARCH');
case 4:
return $abbr ? Text::_('APRIL_SHORT') : Text::_('APRIL');
case 5:
return $abbr ? Text::_('MAY_SHORT') : Text::_('MAY');
case 6:
return $abbr ? Text::_('JUNE_SHORT') : Text::_('JUNE');
case 7:
return $abbr ? Text::_('JULY_SHORT') : Text::_('JULY');
case 8:
return $abbr ? Text::_('AUGUST_SHORT') : Text::_('AUGUST');
case 9:
return $abbr ? Text::_('SEPTEMBER_SHORT') : Text::_('SEPTEMBER');
case 10:
return $abbr ? Text::_('OCTOBER_SHORT') : Text::_('OCTOBER');
case 11:
return $abbr ? Text::_('NOVEMBER_SHORT') : Text::_('NOVEMBER');
case 12:
return $abbr ? Text::_('DECEMBER_SHORT') : Text::_('DECEMBER');
}
}
function strftime (string $format, $timestamp = null) : string {
if (version_compare(PHP_VERSION, "8.2", "lt"))
{
return @\strftime($format, $timestamp);
}
$intl_formatter = function (DateTimeInterface $timestamp, string $format) {
if (class_exists("IntlDateFormatter"))
{
$intl_formats = [
'%a' => 'EEE', // An abbreviated textual representation of the day Sun through Sat
'%A' => 'EEEE', // A full textual representation of the day Sunday through Saturday
'%b' => 'MMM', // Abbreviated month name, based on the locale Jan through Dec
'%B' => 'MMMM', // Full month name, based on the locale January through December
'%h' => 'MMM', // Abbreviated month name, based on the locale (an alias of %b) Jan through Dec
];
$tz = $timestamp->getTimezone();
$date_type = IntlDateFormatter::FULL;
$time_type = IntlDateFormatter::FULL;
$pattern = '';
switch ($format)
{
// %c = Preferred date and time stamp based on locale
// Example: Tue Feb 5 00:45:10 2009 for February 5, 2009 at 12:45:10 AM
case '%c':
$date_type = IntlDateFormatter::LONG;
$time_type = IntlDateFormatter::SHORT;
break;
// %x = Preferred date representation based on locale, without the time
// Example: 02/05/09 for February 5, 2009
case '%x':
$date_type = IntlDateFormatter::SHORT;
$time_type = IntlDateFormatter::NONE;
break;
// Localized time format
case '%X':
$date_type = IntlDateFormatter::NONE;
$time_type = IntlDateFormatter::MEDIUM;
break;
default:
$pattern = $intl_formats[$format];
}
// In October 1582, the Gregorian calendar replaced the Julian in much of Europe, and
// the 4th October was followed by the 15th October.
// ICU (including IntlDateFormattter) interprets and formats dates based on this cutover.
// Posix (including strftime) and timelib (including DateTimeImmutable) instead use
// a "proleptic Gregorian calendar" - they pretend the Gregorian calendar has existed forever.
// This leads to the same instants in time, as expressed in Unix time, having different representations
// in formatted strings.
// To adjust for this, a custom calendar can be supplied with a cutover date arbitrarily far in the past.
$calendar = IntlGregorianCalendar::createInstance();
$calendar->setGregorianChange(PHP_INT_MIN);
// get current locale
$locale = setlocale(LC_TIME, '0');
// remove trailing part not supported by ext-intl locale
$locale = preg_replace('/[^\w-].*$/', '', $locale);
try
{
$dateFormatter = new IntlDateFormatter( $locale, $date_type, $time_type, $tz, $calendar, $pattern );
$iFormat = $dateFormatter->format( $timestamp );
}
catch (\Throwable $e)
{
echo $e->getMessage() . "<br>";
echo "Locale = $locale<br>";
echo "pattern = $pattern<br>";
return 'Y-m-d H:i:s';
}
return $iFormat;
}
else
{
$mapping = [
// time
'%X' => 'H:i:s', // 29, Based on locale without date
// date stamps
'%c' => 'Y-m-d H:i:s', // 32, Date and time stamps based on locale
'%x' => 'Y-m-d', // 36, Date stamps based on locale
];
foreach ($mapping as $index => $value) {
$format = str_replace($index, $value, $format);
}
return $format;
}
};
// Same order as https://www.php.net/manual/en/function.strftime.php
$translation_table = [
// Day
'%a' => function ($timestamp) {
return dayToString(date('w', $timestamp), true);
},
'%A' => function ($timestamp) {
return dayToString(date('w', $timestamp), false);
},
'%d' => 'd',
'%e' => function ($timestamp) {
return sprintf('% 2u', date('j', $timestamp));
},
'%j' => function ($timestamp) {
// Day number in year, 001 to 366
return sprintf('%03d', date('z', $timestamp) + 1);
},
'%u' => 'N',
'%w' => 'w',
// Week
'%U' => function ($timestamp) {
// Number of weeks between date and first Sunday of year
$day = new DateTime(sprintf('%d-01 Sunday', date('Y', $timestamp)));
return sprintf('%02u', 1 + (date('z', $timestamp) - $day->format('z')) / 7);
},
'%V' => 'W',
'%W' => function ($timestamp) {
// Number of weeks between date and first Monday of year
$day = new DateTime(sprintf('%d-01 Monday', date('Y', $timestamp)));
return sprintf('%02u', 1 + (date('z', $timestamp) - $day->format('z')) / 7);
},
// Month
'%m' => 'm',
'%b' => function ($timestamp) {
return monthToString(date('n', $timestamp), true);
},
'%B' => function ($timestamp) {
return monthToString(date('n', $timestamp), false);
},
'%h' => function ($timestamp) {
return monthToString(date('n', $timestamp), true);
},
// Year
'%C' => function ($timestamp) {
// Century (-1): 19 for 20th century
return floor(date('Y', $timestamp) / 100);
},
'%g' => function ($timestamp) {
return substr(date('0', $timestamp), -2);
},
'%G' => 'o',
'%y' => 'y',
'%Y' => 'Y',
// Time
'%H' => 'H',
'%k' => function ($timestamp) {
return sprintf('% 2u', date('G', $timestamp));
},
'%I' => 'h',
'%l' => function ($timestamp) {
return sprintf('% 2u', date('g', $timestamp));
},
'%M' => 'i',
'%p' => 'A', // AM PM (this is reversed on purpose!)
'%P' => 'a', // am pm
'%r' => 'h:i:s A', // %I:%M:%S %p
'%R' => 'H:i', // %H:%M
'%S' => 's',
'%T' => 'H:i:s', // %H:%M:%S
// '%X' =>
// Timezone
'%z' => 'O',
'%Z' => 'T',
// Time and Date Stamps
'%D' => 'm/d/Y',
'%F' => 'Y-m-d',
'%s' => 'U',
// Preferred date and time stamp based on locale
'%c' => $intl_formatter,
// Preferred time representation based on locale, without the date
'%X' => $intl_formatter,
// Preferred date representation based on locale, without the time
'%x' => $intl_formatter,
];
$out = preg_replace_callback('/(?<!%)%([_#-]?)([a-zA-Z])/', function ($match) use ($translation_table, $timestamp) {
$prefix = $match[1];
$char = $match[2];
$pattern = '%'.$char;
if ($pattern == '%n') {
return "\n";
} elseif ($pattern == '%t') {
return "\t";
}
if (!isset($translation_table[$pattern])) {
$replace = str_replace("%", "", $pattern);
}
else
{
$replace = $translation_table[$pattern];
}
if (is_string($replace)) {
$result = date($replace, $timestamp);
} else {
$result = $replace($timestamp, $pattern);
}
switch ($prefix) {
case '_':
// replace leading zeros with spaces but keep last char if also zero
return preg_replace('/\G0(?=.)/', ' ', $result);
case '#':
case '-':
// remove leading zeros but keep last char if also zero
return preg_replace('/^0+(?=.)/', '', $result);
}
return $result;
}, $format);
// echo "old = $oldVersion new = $out <br>";
return $out;
}