3 * @file include/datetime.php
4 * @brief Some functions for date and time related tasks.
7 use \Friendica\Core\Config;
10 * @brief Two-level sort for timezones.
16 function timezone_cmp($a, $b) {
17 if(strstr($a,'/') && strstr($b,'/')) {
18 if ( t($a) == t($b)) return 0;
19 return ( t($a) < t($b)) ? -1 : 1;
21 if(strstr($a,'/')) return -1;
22 if(strstr($b,'/')) return 1;
23 if ( t($a) == t($b)) return 0;
25 return ( t($a) < t($b)) ? -1 : 1;
29 * @brief Emit a timezone selector grouped (primarily) by continent
31 * @param string $current Timezone
32 * @return string Parsed HTML output
34 function select_timezone($current = 'America/Los_Angeles') {
36 $timezone_identifiers = DateTimeZone::listIdentifiers();
38 $o ='<select id="timezone_select" name="timezone">';
40 usort($timezone_identifiers, 'timezone_cmp');
42 foreach($timezone_identifiers as $value) {
43 $ex = explode("/", $value);
45 if($ex[0] != $continent) {
49 $o .= '<optgroup label="' . t($continent) . '">';
52 $city = substr($value,strpos($value,'/')+1);
58 if($continent != t('Miscellaneous')) {
60 $continent = t('Miscellaneous');
61 $o .= '<optgroup label="' . t($continent) . '">';
64 $city = str_replace('_', ' ', t($city));
65 $selected = (($value == $current) ? " selected=\"selected\" " : "");
66 $o .= "<option value=\"$value\" $selected >$city</option>";
68 $o .= '</optgroup></select>';
75 * @brief Generating a Timezone selector
77 * Return a select using 'field_select_raw' template, with timezones
78 * groupped (primarily) by continent
79 * arguments follow convetion as other field_* template array:
80 * 'name', 'label', $value, 'help'
82 * @param string $name Name of the selector
83 * @param string $label Label for the selector
84 * @param string $current Timezone
85 * @param string $help Help text
87 * @return string Parsed HTML
89 function field_timezone($name='timezone', $label='', $current = 'America/Los_Angeles', $help){
90 $options = select_timezone($current);
91 $options = str_replace('<select id="timezone_select" name="timezone">','', $options);
92 $options = str_replace('</select>','', $options);
94 $tpl = get_markup_template('field_select_raw.tpl');
95 return replace_macros($tpl, array(
96 '$field' => array($name, $label, $current, $help, $options),
102 * @brief General purpose date parse/convert function.
104 * @param string $from Source timezone
105 * @param string $to Dest timezone
106 * @param string $s Some parseable date/time string
107 * @param string $fmt Output format recognised from php's DateTime class
108 * http://www.php.net/manual/en/datetime.format.php
110 * @return string Formatted date according to given format
112 function datetime_convert($from = 'UTC', $to = 'UTC', $s = 'now', $fmt = "Y-m-d H:i:s") {
114 // Defaults to UTC if nothing is set, but throws an exception if set to empty string.
115 // Provide some sane defaults regardless.
121 if( ($s === '') || (! is_string($s)) )
124 // Slight hackish adjustment so that 'zero' datetime actually returns what is intended
125 // otherwise we end up with -0001-11-30 ...
126 // add 32 days so that we at least get year 00, and then hack around the fact that
127 // months and days always start with 1.
129 if(substr($s,0,10) == '0000-00-00') {
130 $d = new DateTime($s . ' + 32 days', new DateTimeZone('UTC'));
131 return str_replace('1','0',$d->format($fmt));
135 $from_obj = new DateTimeZone($from);
137 catch(Exception $e) {
138 $from_obj = new DateTimeZone('UTC');
142 $d = new DateTime($s, $from_obj);
144 catch(Exception $e) {
145 logger('datetime_convert: exception: ' . $e->getMessage());
146 $d = new DateTime('now', $from_obj);
150 $to_obj = new DateTimeZone($to);
152 catch(Exception $e) {
153 $to_obj = new DateTimeZone('UTC');
156 $d->setTimeZone($to_obj);
158 return($d->format($fmt));
163 * @brief Wrapper for date selector, tailored for use in birthday fields.
165 * @param string $dob Date of Birth
166 * @return string Formatted html
169 list($year,$month,$day) = sscanf($dob,'%4d-%2d-%2d');
171 $f = get_config('system','birthday_input_format');
174 if($dob === '0000-00-00')
177 $value = (($year) ? datetime_convert('UTC','UTC',$dob,'Y-m-d') : datetime_convert('UTC','UTC',$dob,'m-d'));
179 $age = ((intval($value)) ? age($value, $a->user["timezone"], $a->user["timezone"]) : "");
181 $o = replace_macros(get_markup_template("field_input.tpl"), array(
186 (((intval($age)) > 0 ) ? t('Age: ') . $age : ""),
188 'placeholder="' . t('YYYY-MM-DD or MM-DD') . '"'
192 // if ($dob && $dob != '0000-00-00')
193 // $o = datesel($f,mktime(0,0,0,0,0,1900),mktime(),mktime(0,0,0,$month,$day,$year),'dob');
195 // $o = datesel($f,mktime(0,0,0,0,0,1900),mktime(),false,'dob');
201 * @brief Returns a date selector
203 * @param string $format
204 * Format string, e.g. 'ymd' or 'mdy'. Not currently supported
206 * Unix timestamp of minimum date
208 * Unix timestap of maximum date
209 * @param string $default
210 * Unix timestamp of default date
212 * ID and name of datetimepicker (defaults to "datetimepicker")
214 * @return string Parsed HTML output.
216 function datesel($format, $min, $max, $default, $id = 'datepicker') {
217 return datetimesel($format,$min,$max,$default,'',$id,true,false, '','');
221 * @brief Returns a time selector
223 * @param string $format
224 * Format string, e.g. 'ymd' or 'mdy'. Not currently supported
226 * Already selected hour
228 * Already selected minute
230 * ID and name of datetimepicker (defaults to "timepicker")
232 * @return string Parsed HTML output.
234 function timesel($format, $h, $m, $id='timepicker') {
235 return datetimesel($format,new DateTime(),new DateTime(),new DateTime("$h:$m"),'',$id,false,true);
239 * @brief Returns a datetime selector.
241 * @param string $format
242 * format string, e.g. 'ymd' or 'mdy'. Not currently supported
244 * unix timestamp of minimum date
246 * unix timestap of maximum date
247 * @param string $default
248 * unix timestamp of default date
250 * id and name of datetimepicker (defaults to "datetimepicker")
251 * @param bool $pickdate
252 * true to show date picker (default)
253 * @param boolean $picktime
254 * true to show time picker (default)
256 * set minimum date from picker with id $minfrom (none by default)
258 * set maximum date from picker with id $maxfrom (none by default)
259 * @param bool $required default false
261 * @return string Parsed HTML output.
263 * @todo Once browser support is better this could probably be replaced with
264 * native HTML5 date picker.
266 function datetimesel($format, $min, $max, $default, $label, $id = 'datetimepicker', $pickdate = true, $picktime = true, $minfrom = '', $maxfrom = '', $required = false) {
268 // First day of the week (0 = Sunday)
269 $firstDay = get_pconfig(local_user(),'system','first_day_of_week');
270 if ($firstDay === false) $firstDay=0;
272 $lang = substr(get_browser_language(), 0, 2);
274 // Check if the detected language is supported by the picker
275 if (!in_array($lang, array("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"))) {
276 $lang = Config::get('system', 'language', 'en');
282 if($pickdate) $dateformat .= 'Y-m-d';
283 if($pickdate && $picktime) $dateformat .= ' ';
284 if($picktime) $dateformat .= 'H:i';
286 $minjs = $min ? ",minDate: new Date({$min->getTimestamp()}*1000), yearStart: " . $min->format('Y') : '';
287 $maxjs = $max ? ",maxDate: new Date({$max->getTimestamp()}*1000), yearEnd: " . $max->format('Y') : '';
289 $input_text = $default ? date($dateformat, $default->getTimestamp()) : '';
290 $defaultdatejs = $default ? ",defaultDate: new Date({$default->getTimestamp()}*1000)" : '';
293 if(!$pickdate) $pickers .= ',datepicker: false';
294 if(!$picktime) $pickers .= ',timepicker: false';
297 $pickers .= ",dayOfWeekStart: ".$firstDay.",lang:'".$lang."'";
299 $extra_js .= "\$('#id_$minfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({minDate: currentDateTime})}})";
301 $extra_js .= "\$('#id_$maxfrom').data('xdsoft_datetimepicker').setOptions({onChangeDateTime: function (currentDateTime) { \$('#id_$id').data('xdsoft_datetimepicker').setOptions({maxDate: currentDateTime})}})";
303 $readable_format = $dateformat;
304 $readable_format = str_replace('Y','yyyy',$readable_format);
305 $readable_format = str_replace('m','mm',$readable_format);
306 $readable_format = str_replace('d','dd',$readable_format);
307 $readable_format = str_replace('H','HH',$readable_format);
308 $readable_format = str_replace('i','MM',$readable_format);
310 $tpl = get_markup_template('field_input.tpl');
311 $o .= replace_macros($tpl,array(
312 '$field' => array($id, $label, $input_text, '', (($required) ? '*' : ''), 'placeholder="' . $readable_format . '"'),
315 $o .= "<script type='text/javascript'>";
316 $o .= "\$(function () {var picker = \$('#id_$id').datetimepicker({step:5,format:'$dateformat' $minjs $maxjs $pickers $defaultdatejs}); $extra_js})";
323 * @brief Returns a relative date string.
325 * Implements "3 seconds ago" etc.
326 * Based on $posted_date, (UTC).
327 * Results relative to current timezone.
328 * Limited to range of timestamps.
330 * @param string $posted_date MySQL-formatted date string (YYYY-MM-DD HH:MM:SS)
331 * @param string $format (optional) Parsed with sprintf()
332 * <tt>%1$d %2$s ago</tt>, e.g. 22 hours ago, 1 minute ago
334 * @return string with relative date
336 function relative_date($posted_date, $format = null) {
338 $localtime = $posted_date . ' UTC';
340 $abs = strtotime($localtime);
342 if (is_null($posted_date) || $posted_date === '0000-00-00 00:00:00' || $abs === False) {
346 $etime = time() - $abs;
349 return t('less than a second ago');
352 $a = array( 12 * 30 * 24 * 60 * 60 => array( t('year'), t('years')),
353 30 * 24 * 60 * 60 => array( t('month'), t('months')),
354 7 * 24 * 60 * 60 => array( t('week'), t('weeks')),
355 24 * 60 * 60 => array( t('day'), t('days')),
356 60 * 60 => array( t('hour'), t('hours')),
357 60 => array( t('minute'), t('minutes')),
358 1 => array( t('second'), t('seconds'))
361 foreach ($a as $secs => $str) {
365 // translators - e.g. 22 hours ago, 1 minute ago
367 $format = t('%1$d %2$s ago');
370 return sprintf($format, $r, (($r == 1) ? $str[0] : $str[1]));
376 * @brief Returns timezone correct age in years.
378 * Returns the age in years, given a date of birth, the timezone of the person
379 * whose date of birth is provided, and the timezone of the person viewing the
382 * Why? Bear with me. Let's say I live in Mittagong, Australia, and my birthday
383 * is on New Year's. You live in San Bruno, California.
384 * When exactly are you going to see my age increase?
386 * A: 5:00 AM Dec 31 San Bruno time. That's precisely when I start celebrating
387 * and become a year older. If you wish me happy birthday on January 1
388 * (San Bruno time), you'll be a day late.
390 * @param string $dob Date of Birth
391 * @param string $owner_tz (optional) Timezone of the person of interest
392 * @param string $viewer_tz (optional) Timezone of the person viewing
394 * @return int Age in years
396 function age($dob,$owner_tz = '',$viewer_tz = '') {
400 $owner_tz = date_default_timezone_get();
402 $viewer_tz = date_default_timezone_get();
404 $birthdate = datetime_convert('UTC',$owner_tz,$dob . ' 00:00:00+00:00','Y-m-d');
405 list($year,$month,$day) = explode("-",$birthdate);
406 $year_diff = datetime_convert('UTC',$viewer_tz,'now','Y') - $year;
407 $curr_month = datetime_convert('UTC',$viewer_tz,'now','m');
408 $curr_day = datetime_convert('UTC',$viewer_tz,'now','d');
410 if(($curr_month < $month) || (($curr_month == $month) && ($curr_day < $day)))
417 * @brief Get days of a month in a given year.
419 * Returns number of days in the month of the given year.
420 * $m = 1 is 'January' to match human usage.
423 * @param int $m Month (1=January, 12=December)
425 * @return int Number of days in the given month
427 function get_dim($y,$m) {
430 31, 28, 31, 30, 31, 30,
431 31, 31, 30, 31, 30, 31);
436 if(((($y % 4) == 0) && (($y % 100) != 0)) || (($y % 400) == 0))
443 * @brief Returns the first day in month for a given month, year.
448 * @param int $m Month (1=January, 12=December)
450 * @return string day 0 = Sunday through 6 = Saturday
452 function get_first_dim($y,$m) {
453 $d = sprintf('%04d-%02d-01 00:00', intval($y), intval($m));
455 return datetime_convert('UTC','UTC',$d,'w');
459 * @brief Output a calendar for the given month, year.
461 * If $links are provided (array), e.g. $links[12] => 'http://mylink' ,
462 * date 12 will be linked appropriately. Today's date is also noted by
464 * Months count from 1.
467 * @param int $m Month
468 * @param bool $links (default false)
469 * @param string $class
473 * @todo Provide (prev,next) links, define class variations for different size calendars
475 function cal($y = 0,$m = 0, $links = false, $class='') {
478 // month table - start at 1 to match human usage.
481 'January','February','March',
482 'April','May','June',
483 'July','August','September',
484 'October','November','December'
487 $thisyear = datetime_convert('UTC',date_default_timezone_get(),'now','Y');
488 $thismonth = datetime_convert('UTC',date_default_timezone_get(),'now','m');
492 $m = intval($thismonth);
494 $dn = array('Sunday', 'Monday', 'Tuesday', 'Wednesday', 'Thursday', 'Friday', 'Saturday');
495 $f = get_first_dim($y,$m);
501 if(($y == $thisyear) && ($m == $thismonth))
502 $tddate = intval(datetime_convert('UTC',date_default_timezone_get(),'now','j'));
504 $str_month = day_translate($mtab[$m]);
505 $o = '<table class="calendar' . $class . '">';
506 $o .= "<caption>$str_month $y</caption><tr>";
507 for($a = 0; $a < 7; $a ++)
508 $o .= '<th>' . mb_substr(day_translate($dn[$a]),0,3,'UTF-8') . '</th>';
513 if(($dow == $f) && (! $started))
516 $today = (((isset($tddate)) && ($tddate == $d)) ? "class=\"today\" " : '');
518 $day = str_replace(' ',' ',sprintf('%2.2d', $d));
520 if(is_array($links) && isset($links[$d]))
521 $o .= "<a href=\"{$links[$d]}\">$day</a>";
532 if(($dow == 7) && ($d <= $l)) {
538 for($a = $dow; $a < 7; $a ++)
539 $o .= '<td> </td>';
541 $o .= '</tr></table>'."\r\n";
547 * @brief Create a birthday event.
549 * Update the year and the birthday.
551 function update_contact_birthdays() {
553 // This only handles foreign or alien networks where a birthday has been provided.
554 // In-network birthdays are handled within local_delivery
556 $r = q("SELECT * FROM contact WHERE `bd` != '' AND `bd` != '0000-00-00' AND SUBSTRING(`bd`,1,4) != `bdyear` ");
557 if (dbm::is_result($r)) {
558 foreach ($r as $rr) {
560 logger('update_contact_birthday: ' . $rr['bd']);
562 $nextbd = datetime_convert('UTC','UTC','now','Y') . substr($rr['bd'],4);
566 * Add new birthday event for this person
568 * $bdtext is just a readable placeholder in case the event is shared
569 * with others. We will replace it during presentation to our $importer
570 * to contain a sparkle link and perhaps a photo.
574 // Check for duplicates
575 $s = q("SELECT `id` FROM `event` WHERE `uid` = %d AND `cid` = %d AND `start` = '%s' AND `type` = '%s' LIMIT 1",
578 dbesc(datetime_convert('UTC','UTC', $nextbd)),
581 if (dbm::is_result($s)) {
585 $bdtext = sprintf( t('%s\'s birthday'), $rr['name']);
586 $bdtext2 = sprintf( t('Happy Birthday %s'), ' [url=' . $rr['url'] . ']' . $rr['name'] . '[/url]') ;
588 $r = q("INSERT INTO `event` (`uid`,`cid`,`created`,`edited`,`start`,`finish`,`summary`,`desc`,`type`,`adjust`)
589 VALUES ( %d, %d, '%s', '%s', '%s', '%s', '%s', '%s', '%s', '%d' ) ",
592 dbesc(datetime_convert()),
593 dbesc(datetime_convert()),
594 dbesc(datetime_convert('UTC','UTC', $nextbd)),
595 dbesc(datetime_convert('UTC','UTC', $nextbd . ' + 1 day ')),
605 q("UPDATE `contact` SET `bdyear` = '%s', `bd` = '%s' WHERE `uid` = %d AND `id` = %d",
606 dbesc(substr($nextbd,0,4)),