diff --git a/admin/mailout-debugger.php b/admin/mailout-debugger.php
index ae9fc85e816..bab5e998322 100644
--- a/admin/mailout-debugger.php
+++ b/admin/mailout-debugger.php
@@ -45,7 +45,7 @@ if (isset($_ENV['TMPDIR']) && is_dir($_ENV['TMPDIR'])) {
$tmpfile = $tmpdir . '/moodle-mailout.log';
$fh = fopen($tmpfile, 'a+', false)
or mdie("Error openning $tmpfile on append\n");
-fwrite($fh, "==== ".strftime("%a %b %e %H:%M:%S %Y", time())." ====\n");
+fwrite($fh, "==== ".date("D M d H:i:s Y", time())." ====\n");
fwrite($fh, "==== Commandline: " . implode(' ',$argv) . "\n");
$stdin = fopen('php://stdin', 'r');
diff --git a/admin/tool/admin_presets/classes/local/action/rollback.php b/admin/tool/admin_presets/classes/local/action/rollback.php
index 18ff777b583..aa7dd61f966 100644
--- a/admin/tool/admin_presets/classes/local/action/rollback.php
+++ b/admin/tool/admin_presets/classes/local/action/rollback.php
@@ -52,7 +52,7 @@ class rollback extends base {
);
$context->applications[] = [
- 'timeapplied' => strftime($format, $application->time),
+ 'timeapplied' => \core_date::strftime($format, (int)$application->time),
'user' => fullname($user),
'action' => $rollbacklink->out(false),
];
diff --git a/blocks/rss_client/classes/output/renderer.php b/blocks/rss_client/classes/output/renderer.php
index 7a03280fbdc..e6a24899124 100644
--- a/blocks/rss_client/classes/output/renderer.php
+++ b/blocks/rss_client/classes/output/renderer.php
@@ -92,8 +92,7 @@ class renderer extends \plugin_renderer_base {
* @return string
*/
public function format_published_date($timestamp) {
- return strftime(get_string('strftimerecentfull', 'langconfig'), $timestamp);
- return date('j F Y, g:i a', $timestamp);
+ return \core_date::strftime(get_string('strftimerecentfull', 'langconfig'), $timestamp);
}
/**
diff --git a/calendar/tests/behat/behat_calendar.php b/calendar/tests/behat/behat_calendar.php
index e7029fa9fde..44b11d31e27 100644
--- a/calendar/tests/behat/behat_calendar.php
+++ b/calendar/tests/behat/behat_calendar.php
@@ -118,9 +118,7 @@ class behat_calendar extends behat_base {
* @Given /^I hover over today in the mini-calendar block$/
*/
public function i_hover_over_today_in_mini_calendar_block(): void {
- // For window's compatibility, using %d and not %e.
- $todaysday = trim(strftime('%d'));
- $todaysday = ltrim($todaysday, '0');
+ $todaysday = date('j');
$this->i_hover_over_day_of_this_month_in_mini_calendar_block($todaysday);
}
@@ -130,9 +128,7 @@ class behat_calendar extends behat_base {
* @Given /^I hover over today in the calendar$/
*/
public function i_hover_over_today_in_the_calendar() {
- // For window's compatibility, using %d and not %e.
- $todaysday = trim(strftime('%d'));
- $todaysday = ltrim($todaysday, '0');
+ $todaysday = date('j');
return $this->i_hover_over_day_of_this_month_in_calendar($todaysday);
}
diff --git a/calendar/type/gregorian/classes/structure.php b/calendar/type/gregorian/classes/structure.php
index cfcabe94ffd..bb0012666b2 100644
--- a/calendar/type/gregorian/classes/structure.php
+++ b/calendar/type/gregorian/classes/structure.php
@@ -329,11 +329,11 @@ class structure extends type_base {
date_default_timezone_set(\core_date::get_user_timezone($timezone));
if ($fixday) {
- $daystring = ltrim(str_replace(array(' 0', ' '), '', strftime(' %d', $time)));
+ $daystring = ltrim(str_replace(array(' 0', ' '), '', date(' d', $time)));
$datestring = str_replace('DD', $daystring, $datestring);
}
if ($fixhour) {
- $hourstring = ltrim(str_replace(array(' 0', ' '), '', strftime(' %I', $time)));
+ $hourstring = ltrim(str_replace(array(' 0', ' '), '', date(' h', $time)));
$datestring = str_replace('HH', $hourstring, $datestring);
}
diff --git a/lib/classes/date.php b/lib/classes/date.php
index 9702d43f8bb..bde01d29b05 100644
--- a/lib/classes/date.php
+++ b/lib/classes/date.php
@@ -692,4 +692,209 @@ class core_date {
}
}
}
+
+ /**
+ * 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.
+ *
+ * From:
+ * https://github.com/alphp/strftime
+ *
+ * @param string $format Date format
+ * @param int|string|DateTime $timestamp Timestamp
+ * @param string|null $locale
+ * @return string
+ * @author BohwaZ
+ */
+ public static function strftime(string $format, $timestamp = null, ?string $locale = null) : string {
+ // phpcs:disable
+ if (!($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 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.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,
+ ];
+
+ $out = preg_replace_callback('/(?format($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 $out;
+ // phpcs:enable
+ }
}
diff --git a/lib/moodlelib.php b/lib/moodlelib.php
index c631840ebcc..6d0cc74c325 100644
--- a/lib/moodlelib.php
+++ b/lib/moodlelib.php
@@ -2377,7 +2377,7 @@ function date_format_string($date, $format, $tz = 99) {
date_default_timezone_set(core_date::get_user_timezone($tz));
- if (strftime('%p', 0) === strftime('%p', HOURSECS * 18)) {
+ if (date('A', 0) === date('A', HOURSECS * 18)) {
$datearray = getdate($date);
$format = str_replace([
'%P',
@@ -2388,7 +2388,7 @@ function date_format_string($date, $format, $tz = 99) {
], $format);
}
- $datestring = strftime($format, $date);
+ $datestring = core_date::strftime($format, $date);
core_date::set_default_server_timezone();
if ($localewincharset) {
diff --git a/lib/odslib.class.php b/lib/odslib.class.php
index 7ac88b31a5e..3f49756dd6e 100644
--- a/lib/odslib.class.php
+++ b/lib/odslib.class.php
@@ -1177,8 +1177,8 @@ class MoodleODSWriter {
if (isset($cell->formula)) {
$buffer .= ''."\n";
} else if ($cell->type == 'date') {
- $buffer .= ''
- . $pretext . strftime('%Y-%m-%dT%H:%M:%S', $cell->value) . $posttext
+ $buffer .= 'value) . '"'.$extra.'>'
+ . $pretext . date("Y-m-d\\TH:i:s", $cell->value) . $posttext
. ''."\n";
} else if ($cell->type == 'float') {
$buffer .= ''
@@ -1267,7 +1267,7 @@ class MoodleODSWriter {
Moodle '.$CFG->release.'
' . htmlspecialchars(fullname($USER, true), ENT_QUOTES, 'utf-8') . '
- '.strftime('%Y-%m-%dT%H:%M:%S').'
+ '.date("Y-m-d\\TH:i:s").'
';
diff --git a/lib/tests/date_legacy_test.php b/lib/tests/date_legacy_test.php
index 542a02bd8b8..f26e164a1f1 100644
--- a/lib/tests/date_legacy_test.php
+++ b/lib/tests/date_legacy_test.php
@@ -276,7 +276,7 @@ class date_legacy_test extends \advanced_testcase {
$expected->setTimezone(new \DateTimeZone(($user->timezone == 99 ? 'Pacific/Auckland' : $user->timezone)));
$result = userdate($expected->getTimestamp(), '', 99, false, false);
date_default_timezone_set($expected->getTimezone()->getName());
- $ex = strftime($format, $expected->getTimestamp());
+ $ex = \core_date::strftime($format, $expected->getTimestamp());
date_default_timezone_set($CFG->timezone);
$this->assertSame($ex, $result);
}
diff --git a/mod/wiki/pagelib.php b/mod/wiki/pagelib.php
index cea90fef5c4..535ad17c5c7 100644
--- a/mod/wiki/pagelib.php
+++ b/mod/wiki/pagelib.php
@@ -1771,7 +1771,7 @@ class page_wiki_map extends page_wiki {
$strdataux = '';
foreach ($pages as $page) {
$user = wiki_get_user_info($page->userid);
- $strdata = strftime('%d %b %Y', $page->timemodified);
+ $strdata = date('d M Y', $page->timemodified);
if ($strdata != $strdataux) {
$table->data[] = array($OUTPUT->heading($strdata, 4));
$strdataux = $strdata;