编辑文件 - strftime

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<?php
/**
 * Locale-formatted strftime using \IntlDateFormatter (PHP 8.1 compatible)
 * This provides a cross-platform alternative to 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.
 *
 * @link https://gist.github.com/bohwaz/42fc223031e2b2dd2585aab159a20f30
 *
 * Requires PHP intl extension
 *
 * Usage:
 * echo strftime_compat('%A %e %B %Y %X', new \DateTime('2021-09-28 00:00:00'));
 *
 * Original use:
 * \setlocale('fr_FR.UTF-8', LC_TIME);
 * echo \strftime('%A %e %B %Y %X', strtotime('2021-09-28 00:00:00'));
 *
 * @param  string $format Date format
 * @param  integer|string|DateTime $timestamp Timestamp
 * @return string
 * @author BohwaZ <https://bohwaz.net/>
 */
function strftime_compat($format, $timestamp = null)
{
	if ( ! class_exists( 'IntlDateFormatter' ) ) {
		if ( ! function_exists( 'strftime' ) ) {
			// strftime() function does not exist either, exit.
			$error[] = 'PHP extensions: RosarioSIS relies on the intl extension. Please install and activate it.';

echo ErrorMessage( $error, 'fatal' );
		}

if ( ! is_numeric( $timestamp )
			&& is_string( $timestamp ) ) {
			$timestamp = strtotime( $timestamp );
		}

if ( is_null( $timestamp ) ) {
			// Fix date is 1969-12-31 on Windows when PHP intl ext not activated.
			$timestamp = time();
		}

// Revert to strftime() if PHP intl extension not installed...
		return strftime( $format, $timestamp );
	}

if (null === $timestamp) {
		$timestamp = new \DateTime;
	}
	elseif (is_numeric($timestamp)) {
		$timestamp = date_create('@' . $timestamp);

if ($timestamp) {
			$timestamp->setTimezone(new \DateTimezone(date_default_timezone_get()));
		}
	}
	elseif (is_string($timestamp)) {
		$timestamp = date_create($timestamp);
	}

if (!($timestamp instanceof \DateTimeInterface)) {
		throw new \InvalidArgumentException('$timestamp argument is neither a valid UNIX timestamp, a valid date-time string or a DateTime object.');
	}

$locale = substr((string) $_SESSION['locale'], 0, 5);

$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
		'%p' => 'aa',	// UPPER-CASE 'AM' or 'PM' based on the given time	Example: AM for 00:31, PM for 22:23
		'%P' => 'aa',	// lower-case 'am' or 'pm' based on the given time	Example: am for 00:31, pm for 22:23
	];

$intl_formatter = function (\DateTimeInterface $timestamp, $format) use ($intl_formats, $locale) {
		$tz = $timestamp->getTimezone();
		$date_type = \IntlDateFormatter::FULL;
		$time_type = \IntlDateFormatter::FULL;
		$pattern = '';

// %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
		if ($format == '%c') {
			$date_type = \IntlDateFormatter::LONG;
			$time_type = \IntlDateFormatter::SHORT;
		}
		// %x = Preferred date representation based on locale, without the time
		// Example: 02/05/09 for February 5, 2009
		elseif ($format == '%x') {
			$date_type = \IntlDateFormatter::SHORT;
			$time_type = \IntlDateFormatter::NONE;
		}
		// Localized time format
		elseif ($format == '%X') {
			$date_type = \IntlDateFormatter::NONE;
			$time_type = \IntlDateFormatter::MEDIUM;
		}
		else {
			$pattern = $intl_formats[$format];
		}

return (new \IntlDateFormatter($locale, $date_type, $time_type, $tz, null, $pattern))->format($timestamp);
	};

// Same order as https://www.php.net/manual/en/function.strftime.php
	$translation_table = [
		// Day
		'%a' => $intl_formatter,
		'%A' => $intl_formatter,
		'%d' => 'd',
		'%e' => 'j',
		'%j' => function ($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', $timestamp->format('Y')));
			return intval(($timestamp->format('z') - $day->format('z')) / 7);
		},
		'%W' => function ($timestamp) {
			// Number of weeks between date and first Monday of year
			$day = new \DateTime(sprintf('%d-01 Monday', $timestamp->format('Y')));
			return intval(($timestamp->format('z') - $day->format('z')) / 7);
		},
		'%V' => 'W',

// Month
		'%b' => $intl_formatter,
		'%B' => $intl_formatter,
		'%h' => $intl_formatter,
		'%m' => 'm',

// Year
		'%C' => function ($timestamp) {
			// Century (-1): 19 for 20th century
			return (int) $timestamp->format('Y') / 100;
		},
		'%g' => function ($timestamp) {
			return substr($timestamp->format('o'), -2);
		},
		'%G' => 'o',
		'%y' => 'y',
		'%Y' => 'Y',

// Time
		'%H' => 'H',
		'%k' => 'G',
		'%I' => 'h',
		'%l' => 'g',
		'%M' => 'i',
		'%p' => $intl_formatter, // AM PM (this is reversed on purpose!)
		'%P' => $intl_formatter, // am pm
		'%r' => 'G: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, $timestamp) {
		if ($match[1] == '%n') {
			return "\n";
		}
		elseif ($match[1] == '%t') {
			return "\t";
		}

if (!isset($translation_table[$match[1]])) {
			throw new \InvalidArgumentException(sprintf('Format "%s" is unknown in time format', $match[1]));
		}

$replace = $translation_table[$match[1]];

if (is_string($replace)) {
			return $timestamp->format($replace);
		}
		else {
			return $replace($timestamp, $match[1]);
		}
	}, $format);

$out = str_replace('%%', '%', $out);
	return $out;
}

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