218 lines
7.6 KiB
PHP
218 lines
7.6 KiB
PHP
<?php
|
|
namespace PHP81_BC;
|
|
|
|
use DateTime;
|
|
use DateTimeZone;
|
|
use DateTimeInterface;
|
|
use Exception;
|
|
use IntlDateFormatter;
|
|
use IntlGregorianCalendar;
|
|
use InvalidArgumentException;
|
|
|
|
/**
|
|
* Locale-formatted PHP81_BC\PHP81_BC\strftime using IntlDateFormatter (PHP 8.1 compatible)
|
|
* This provides a cross-platform alternative to PHP81_BC\PHP81_BC\strftime() for when it will be removed from PHP.
|
|
* Note that output can be slightly different between libc sprintf and this function as it is using ICU.
|
|
*
|
|
* Usage:
|
|
* use function \PHP81_BC\PHP81_BC\PHP81_BC\strftime;
|
|
* echo PHP81_BC\PHP81_BC\strftime('%A %e %B %Y %X', new \DateTime('2021-09-28 00:00:00'), 'fr_FR');
|
|
*
|
|
* Original use:
|
|
* \setlocale(LC_TIME, 'fr_FR.UTF-8');
|
|
* echo \PHP81_BC\PHP81_BC\strftime('%A %e %B %Y %X', strtotime('2021-09-28 00:00:00'));
|
|
*
|
|
* @param string $format Date format
|
|
* @param integer|string|DateTime $timestamp Timestamp
|
|
* @return string
|
|
* @author BohwaZ <https://bohwaz.net/>
|
|
*/
|
|
function strftime (string $format, $timestamp = null, ?string $locale = null) : string {
|
|
if (!($timestamp instanceof DateTimeInterface)) {
|
|
$timestamp = is_int($timestamp) ? '@' . $timestamp : (string) $timestamp;
|
|
|
|
try {
|
|
$timestamp = new DateTime($timestamp);
|
|
} catch (Exception $e) {
|
|
throw new InvalidArgumentException('$timestamp argument is neither a valid UNIX timestamp, a valid date-time string or a DateTime object.', 0, $e);
|
|
}
|
|
}
|
|
|
|
$timestamp->setTimezone(new DateTimeZone(date_default_timezone_get()));
|
|
|
|
if (empty($locale)) {
|
|
// get current locale
|
|
$locale = setlocale(LC_TIME, '0');
|
|
}
|
|
// remove trailing part not supported by ext-intl locale
|
|
$locale = preg_replace('/[^\w-].*$/', '', $locale);
|
|
|
|
$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
|
|
];
|
|
|
|
$intl_formatter = function (DateTimeInterface $timestamp, string $format) use ($intl_formats, $locale) {
|
|
$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 PHP81_BC\PHP81_BC\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();
|
|
$calendar->setGregorianChange(PHP_INT_MIN);
|
|
|
|
return (new IntlDateFormatter($locale, $date_type, $time_type, $tz, $calendar, $pattern))->format($timestamp);
|
|
};
|
|
|
|
// Same order as https://www.php.net/manual/en/function.PHP81_BC\PHP81_BC\strftime.php
|
|
$translation_table = [
|
|
// Day
|
|
'%a' => $intl_formatter,
|
|
'%A' => $intl_formatter,
|
|
'%d' => 'd',
|
|
'%e' => function ($timestamp) {
|
|
return sprintf('% 2u', $timestamp->format('j'));
|
|
},
|
|
'%j' => function ($timestamp) {
|
|
// Day number in year, 001 to 366
|
|
return sprintf('%03d', $timestamp->format('z')+1);
|
|
},
|
|
'%u' => 'N',
|
|
'%w' => 'w',
|
|
|
|
// Week
|
|
'%U' => function ($timestamp) {
|
|
// Number of weeks between date and first Sunday of year
|
|
$day = new DateTime(sprintf('%d-01 Sunday', $timestamp->format('Y')));
|
|
return sprintf('%02u', 1 + ($timestamp->format('z') - $day->format('z')) / 7);
|
|
},
|
|
'%V' => 'W',
|
|
'%W' => function ($timestamp) {
|
|
// Number of weeks between date and first Monday of year
|
|
$day = new DateTime(sprintf('%d-01 Monday', $timestamp->format('Y')));
|
|
return sprintf('%02u', 1 + ($timestamp->format('z') - $day->format('z')) / 7);
|
|
},
|
|
|
|
// Month
|
|
'%b' => $intl_formatter,
|
|
'%B' => $intl_formatter,
|
|
'%h' => $intl_formatter,
|
|
'%m' => 'm',
|
|
|
|
// Year
|
|
'%C' => function ($timestamp) {
|
|
// Century (-1): 19 for 20th century
|
|
return floor($timestamp->format('Y') / 100);
|
|
},
|
|
'%g' => function ($timestamp) {
|
|
return substr($timestamp->format('o'), -2);
|
|
},
|
|
'%G' => 'o',
|
|
'%y' => 'y',
|
|
'%Y' => 'Y',
|
|
|
|
// Time
|
|
'%H' => 'H',
|
|
'%k' => function ($timestamp) {
|
|
return sprintf('% 2u', $timestamp->format('G'));
|
|
},
|
|
'%I' => 'h',
|
|
'%l' => function ($timestamp) {
|
|
return sprintf('% 2u', $timestamp->format('g'));
|
|
},
|
|
'%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' => $intl_formatter, // Preferred time representation based on locale, without the date
|
|
|
|
// Timezone
|
|
'%z' => 'O',
|
|
'%Z' => 'T',
|
|
|
|
// Time and Date Stamps
|
|
'%c' => $intl_formatter,
|
|
'%D' => 'm/d/Y',
|
|
'%F' => 'Y-m-d',
|
|
'%s' => 'U',
|
|
'%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])) {
|
|
throw new InvalidArgumentException(sprintf('Format "%s" is unknown in time format', $pattern));
|
|
}
|
|
|
|
$replace = $translation_table[$pattern];
|
|
|
|
if (is_string($replace)) {
|
|
$result = $timestamp->format($replace);
|
|
} 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);
|
|
|
|
$out = str_replace('%%', '%', $out);
|
|
return $out;
|
|
}
|