3 * @file include/datetime.php
4 * @brief Some functions for date and time related tasks.
7 use Friendica\Core\Config;
8 use Friendica\Core\PConfig;
9 use Friendica\Database\DBM;
12 * @brief Two-level sort for timezones.
18 function timezone_cmp($a, $b) {
19 if (strstr($a, '/') && strstr($b, '/')) {
20 if ( t($a) == t($b)) {
23 return ( t($a) < t($b)) ? -1 : 1;
26 if (strstr($a, '/')) {
28 } elseif (strstr($b, '/')) {
30 } elseif ( t($a) == t($b)) {
34 return ( t($a) < t($b)) ? -1 : 1;
38 * @brief Emit a timezone selector grouped (primarily) by continent
40 * @param string $current Timezone
41 * @return string Parsed HTML output
43 function select_timezone($current = 'America/Los_Angeles') {
45 $timezone_identifiers = DateTimeZone::listIdentifiers();
47 $o ='<select id="timezone_select" name="timezone">';
49 usort($timezone_identifiers, 'timezone_cmp');
51 foreach ($timezone_identifiers as $value) {
52 $ex = explode("/", $value);
54 if ($ex[0] != $continent) {
55 if ($continent != '') {
59 $o .= '<optgroup label="' . t($continent) . '">';
62 $city = substr($value,strpos($value,'/')+1);
68 if ($continent != t('Miscellaneous')) {
70 $continent = t('Miscellaneous');
71 $o .= '<optgroup label="' . t($continent) . '">';
74 $city = str_replace('_', ' ', t($city));
75 $selected = (($value == $current) ? " selected=\"selected\" " : "");
76 $o .= "<option value=\"$value\" $selected >$city</option>";
78 $o .= '</optgroup></select>';
85 * @brief Generating a Timezone selector
87 * Return a select using 'field_select_raw' template, with timezones
88 * groupped (primarily) by continent
89 * arguments follow convetion as other field_* template array:
90 * 'name', 'label', $value, 'help'
92 * @param string $name Name of the selector
93 * @param string $label Label for the selector
94 * @param string $current Timezone
95 * @param string $help Help text
97 * @return string Parsed HTML
99 function field_timezone($name='timezone', $label='', $current = 'America/Los_Angeles', $help){
100 $options = select_timezone($current);
101 $options = str_replace('<select id="timezone_select" name="timezone">','', $options);
102 $options = str_replace('</select>','', $options);
104 $tpl = get_markup_template('field_select_raw.tpl');
105 return replace_macros($tpl, [
106 '$field' => [$name, $label, $current, $help, $options],
112 * @brief General purpose date parse/convert function.
114 * @param string $from Source timezone
115 * @param string $to Dest timezone
116 * @param string $s Some parseable date/time string
117 * @param string $fmt Output format recognised from php's DateTime class
118 * http://www.php.net/manual/en/datetime.format.php
120 * @return string Formatted date according to given format
122 function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") {
124 // Defaults to UTC if nothing is set, but throws an exception if set to empty string.
125 // Provide some sane defaults regardless.
133 if ( ($s === '') || (! is_string($s)) ) {
138 * Slight hackish adjustment so that 'zero' datetime actually returns what is intended
139 * otherwise we end up with -0001-11-30 ...
140 * add 32 days so that we at least get year 00, and then hack around the fact that
141 * months and days always start with 1.
144 if (substr($s,0,10) <= '0001-01-01') {
145 $d = new DateTime($s . ' + 32 days', new DateTimeZone('UTC'));
146 return str_replace('1','0',$d->format($fmt));
150 $from_obj = new DateTimeZone($from);
151 } catch (Exception $e) {
152 $from_obj = new DateTimeZone('UTC');
156 $d = new DateTime($s, $from_obj);
157 } catch (Exception $e) {
158 logger('datetime_convert: exception: ' . $e->getMessage());
159 $d = new DateTime('now', $from_obj);
163 $to_obj = new DateTimeZone($to);
164 } catch (Exception $e) {
165 $to_obj = new DateTimeZone('UTC');
168 $d->setTimeZone($to_obj);
170 return $d->format($fmt);
175 * @brief Wrapper for date selector, tailored for use in birthday fields.
177 * @param string $dob Date of Birth
178 * @return string Formatted html
182 list($year, $month, $day) = sscanf($dob, '%4d-%2d-%2d');
184 if ($dob < '0000-01-01') {
187 $value = (($year > 1000) ? datetime_convert('UTC', 'UTC', $dob, 'Y-m-d') : datetime_convert('UTC', 'UTC', '1000-' . $month . '-'. $day, 'm-d'));
190 $age = (intval($value) ? age($value, $a->user["timezone"], $a->user["timezone"]) : "");
192 $o = replace_macros(get_markup_template("field_input.tpl"), [
197 (((intval($age)) > 0 ) ? t('Age: ') . $age : ""),
199 'placeholder="' . t('YYYY-MM-DD or MM-DD') . '"'
207 * @brief Returns a date selector
210 * Unix timestamp of minimum date
212 * Unix timestap of maximum date
213 * @param string $default
214 * Unix timestamp of default date
216 * ID and name of datetimepicker (defaults to "datetimepicker")
218 * @return string Parsed HTML output.
220 function datesel($min, $max, $default, $id = 'datepicker')
222 return datetimesel($min, $max, $default, '', $id, true, false, '', '');
226 * @brief Returns a time selector
229 * Already selected hour
231 * Already selected minute
233 * ID and name of datetimepicker (defaults to "timepicker")
235 * @return string Parsed HTML output.
237 function timesel($h, $m, $id = 'timepicker')
239 return datetimesel(new DateTime(), new DateTime(), new DateTime("$h:$m"), '', $id, false, true);
243 * @brief Returns a datetime selector.
246 * unix timestamp of minimum date
248 * unix timestap of maximum date
249 * @param string $default
250 * unix timestamp of default date
252 * id and name of datetimepicker (defaults to "datetimepicker")
253 * @param bool $pickdate
254 * true to show date picker (default)
255 * @param boolean $picktime
256 * true to show time picker (default)
258 * set minimum date from picker with id $minfrom (none by default)
260 * set maximum date from picker with id $maxfrom (none by default)
261 * @param bool $required default false
263 * @return string Parsed HTML output.
265 * @todo Once browser support is better this could probably be replaced with
266 * native HTML5 date picker.
268 function datetimesel($min, $max, $default, $label, $id = 'datetimepicker', $pickdate = true, $picktime = true, $minfrom = '', $maxfrom = '', $required = false)
270 // First day of the week (0 = Sunday)
271 $firstDay = PConfig::get(local_user(), 'system', 'first_day_of_week', 0);
273 $lang = substr(get_browser_language(), 0, 2);
275 // Check if the detected language is supported by the picker
276 if (!in_array($lang, ["ar", "ro", "id", "bg", "fa", "ru", "uk", "en", "el", "de", "nl", "tr", "fr", "es", "th", "pl", "pt", "ch", "se", "kr", "it", "da", "no", "ja", "vi", "sl", "cs", "hu"])) {
277 $lang = Config::get('system', 'language', 'en');
284 $dateformat .= 'Y-m-d';
286 if ($pickdate && $picktime) {
290 $dateformat .= 'H:i';
293 $minjs = $min ? ",minDate: new Date({$min->getTimestamp()}*1000), yearStart: " . $min->format('Y') : '';
294 $maxjs = $max ? ",maxDate: new Date({$max->getTimestamp()}*1000), yearEnd: " . $max->format('Y') : '';
296 $input_text = $default ? date($dateformat, $default->getTimestamp()) : '';
297 $defaultdatejs = $default ? ",defaultDate: new Date({$default->getTimestamp()}*1000)" : '';
301 $pickers .= ', datepicker: false';
304 $pickers .= ',timepicker: false';
308 $pickers .= ",dayOfWeekStart: " . $firstDay . ",lang:'" . $lang . "'";
309 if ($minfrom != '') {
310 $extra_js .= "\$('#id_$minfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({minDate: currentDateTime})}})";
312 if ($maxfrom != '') {
313 $extra_js .= "\$('#id_$maxfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({maxDate: currentDateTime})}})";
316 $readable_format = $dateformat;
317 $readable_format = str_replace('Y','yyyy',$readable_format);
318 $readable_format = str_replace('m','mm',$readable_format);
319 $readable_format = str_replace('d','dd',$readable_format);
320 $readable_format = str_replace('H','HH',$readable_format);
321 $readable_format = str_replace('i','MM',$readable_format);
323 $tpl = get_markup_template('field_input.tpl');
324 $o .= replace_macros($tpl, [
325 '$field' => [$id, $label, $input_text, '', (($required) ? '*' : ''), 'placeholder="' . $readable_format . '"'],
328 $o .= "<script type='text/javascript'>";
329 $o .= "\$(function () {var picker = \$('#id_$id').datetimepicker({step:5,format:'$dateformat' $minjs $maxjs $pickers $defaultdatejs}); $extra_js})";
336 * @brief Returns a relative date string.
338 * Implements "3 seconds ago" etc.
339 * Based on $posted_date, (UTC).
340 * Results relative to current timezone.
341 * Limited to range of timestamps.
343 * @param string $posted_date MySQL-formatted date string (YYYY-MM-DD HH:MM:SS)
344 * @param string $format (optional) Parsed with sprintf()
345 * <tt>%1$d %2$s ago</tt>, e.g. 22 hours ago, 1 minute ago
347 * @return string with relative date
349 function relative_date($posted_date, $format = null) {
351 $localtime = $posted_date . ' UTC';
353 $abs = strtotime($localtime);
355 if (is_null($posted_date) || $posted_date <= NULL_DATE || $abs === False) {
359 $etime = time() - $abs;
362 return t('less than a second ago');
365 $a = [ 12 * 30 * 24 * 60 * 60 => [ t('year'), t('years')],
366 30 * 24 * 60 * 60 => [ t('month'), t('months')],
367 7 * 24 * 60 * 60 => [ t('week'), t('weeks')],
368 24 * 60 * 60 => [ t('day'), t('days')],
369 60 * 60 => [ t('hour'), t('hours')],
370 60 => [ t('minute'), t('minutes')],
371 1 => [ t('second'), t('seconds')]
374 foreach ($a as $secs => $str) {
378 // translators - e.g. 22 hours ago, 1 minute ago
380 $format = t('%1$d %2$s ago');
383 return sprintf($format, $r, (($r == 1) ? $str[0] : $str[1]));
389 * @brief Returns timezone correct age in years.
391 * Returns the age in years, given a date of birth, the timezone of the person
392 * whose date of birth is provided, and the timezone of the person viewing the
395 * Why? Bear with me. Let's say I live in Mittagong, Australia, and my birthday
396 * is on New Year's. You live in San Bruno, California.
397 * When exactly are you going to see my age increase?
399 * A: 5:00 AM Dec 31 San Bruno time. That's precisely when I start celebrating
400 * and become a year older. If you wish me happy birthday on January 1
401 * (San Bruno time), you'll be a day late.
403 * @param string $dob Date of Birth
404 * @param string $owner_tz (optional) Timezone of the person of interest
405 * @param string $viewer_tz (optional) Timezone of the person viewing
407 * @return int Age in years
409 function age($dob, $owner_tz = '', $viewer_tz = '') {
410 if (! intval($dob)) {
414 $owner_tz = date_default_timezone_get();
417 $viewer_tz = date_default_timezone_get();
420 $birthdate = datetime_convert('UTC', $owner_tz,$dob . ' 00:00:00+00:00','Y-m-d');
421 list($year, $month, $day) = explode("-", $birthdate);
422 $year_diff = datetime_convert('UTC',$viewer_tz, 'now', 'Y') - $year;
423 $curr_month = datetime_convert('UTC',$viewer_tz, 'now', 'm');
424 $curr_day = datetime_convert('UTC',$viewer_tz, 'now', 'd');
426 if (($curr_month < $month) || (($curr_month == $month) && ($curr_day < $day))) {
434 * @brief Get days of a month in a given year.
436 * Returns number of days in the month of the given year.
437 * $m = 1 is 'January' to match human usage.
440 * @param int $m Month (1=January, 12=December)
442 * @return int Number of days in the given month
444 function get_dim($y, $m) {
447 31, 28, 31, 30, 31, 30,
448 31, 31, 30, 31, 30, 31];
452 } elseif (((($y % 4) == 0) && (($y % 100) != 0)) || (($y % 400) == 0)) {
460 * @brief Returns the first day in month for a given month, year.
465 * @param int $m Month (1=January, 12=December)
467 * @return string day 0 = Sunday through 6 = Saturday
469 function get_first_dim($y,$m) {
470 $d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m));
472 return datetime_convert('UTC','UTC',$d,'w');
476 * @brief Output a calendar for the given month, year.
478 * If $links are provided (array), e.g. $links[12] => 'http://mylink' ,
479 * date 12 will be linked appropriately. Today's date is also noted by
481 * Months count from 1.
484 * @param int $m Month
485 * @param array $links (default null)
486 * @param string $class
490 * @todo Provide (prev,next) links, define class variations for different size calendars
492 function cal($y = 0, $m = 0, $links = null, $class = '')
494 // month table - start at 1 to match human usage.
496 'January', 'February', 'March',
497 'April' , 'May' , 'June',
498 'July' , 'August' , 'September',
499 'October', 'November', 'December'
502 $thisyear = datetime_convert('UTC', date_default_timezone_get(), 'now', 'Y');
503 $thismonth = datetime_convert('UTC', date_default_timezone_get(), 'now', 'm');
509 $m = intval($thismonth);
512 $dn = ['Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday'];
513 $f = get_first_dim($y, $m);
514 $l = get_dim($y, $m);
519 if (($y == $thisyear) && ($m == $thismonth)) {
520 $tddate = intval(datetime_convert('UTC', date_default_timezone_get(), 'now', 'j'));
523 $str_month = day_translate($mtab[$m]);
524 $o = '<table class="calendar' . $class . '">';
525 $o .= "<caption>$str_month $y</caption><tr>";
526 for ($a = 0; $a < 7; $a ++) {
527 $o .= '<th>' . mb_substr(day_translate($dn[$a]), 0, 3, 'UTF-8') . '</th>';
533 if (($dow == $f) && (! $started)) {
537 $today = (((isset($tddate)) && ($tddate == $d)) ? "class=\"today\" " : '');
539 $day = str_replace(' ', ' ', sprintf('%2.2d', $d));
541 if (x($links, $d) !== false) {
542 $o .= "<a href=\"{$links[$d]}\">$day</a>";
554 if (($dow == 7) && ($d <= $l)) {
560 for ($a = $dow; $a < 7; $a ++) {
561 $o .= '<td> </td>';
565 $o .= '</tr></table>' . "\r\n";
571 * @brief Create a birthday event.
573 * Update the year and the birthday.
575 function update_contact_birthdays() {
577 // This only handles foreign or alien networks where a birthday has been provided.
578 // In-network birthdays are handled within local_delivery
580 $r = q("SELECT * FROM `contact` WHERE `bd` != '' AND `bd` > '0001-01-01' AND SUBSTRING(`bd`, 1, 4) != `bdyear` ");
581 if (DBM::is_result($r)) {
582 foreach ($r as $rr) {
584 logger('update_contact_birthday: ' . $rr['bd']);
586 $nextbd = datetime_convert('UTC','UTC','now','Y') . substr($rr['bd'], 4);
589 * Add new birthday event for this person
591 * $bdtext is just a readable placeholder in case the event is shared
592 * with others. We will replace it during presentation to our $importer
593 * to contain a sparkle link and perhaps a photo.
596 // Check for duplicates
597 $s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
600 dbesc(datetime_convert('UTC','UTC', $nextbd)),
603 if (DBM::is_result($s)) {
607 $bdtext = sprintf( t('%s\'s birthday'), $rr['name']);
608 $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]') ;
610 q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
611 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ",
614 dbesc(datetime_convert()),
615 dbesc(datetime_convert()),
616 dbesc(datetime_convert('UTC','UTC', $nextbd)),
617 dbesc(datetime_convert('UTC','UTC', $nextbd . ' + 1 day ')),
626 q("UPDATE `contact` SET `bdyear` = '%s', `bd` = '%s' WHERE `uid` = %d AND `id` = %d",
627 dbesc(substr($nextbd,0,4)),