264 lines
8.1 KiB
PHP
264 lines
8.1 KiB
PHP
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<?php
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class Time {
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/**
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* Returns a nicely formatted date string for given Datetime string.
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*
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* @param string $dateString Datetime string
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* @param int $format Format of returned date
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* @return string Formatted date string
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*/
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public static function nice($dateString = null, $format = 'D, M jS Y, H:i') {
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$date = ($dateString == null) ? time() : strtotime($dateString);
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return date($format, $date);
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}
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/**
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* Returns a formatted descriptive date string for given datetime string.
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*
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* If the given date is today, the returned string could be "Today, 6:54 pm".
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* If the given date was yesterday, the returned string could be "Yesterday, 6:54 pm".
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* If $dateString's year is the current year, the returned string does not
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* include mention of the year.
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*
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* @param string $dateString Datetime string or Unix timestamp
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* @return string Described, relative date string
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*/
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public static function niceShort($dateString = null) {
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$date = ($dateString == null) ? time() : strtotime($dateString);
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$y = (self::isThisYear($date)) ? '' : ' Y';
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if (self::isToday($date)) {
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$ret = sprintf('Hoy, %s', date("g:i a", $date));
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} elseif (self::wasYesterday($date)) {
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$ret = sprintf('Ayer, %s', date("g:i a", $date));
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} else {
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$ret = date("M jS{$y}, H:i", $date);
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}
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return $ret;
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}
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/**
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* Returns true if given date is today.
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*
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* @param string $date Unix timestamp
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* @return boolean True if date is today
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*/
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public static function isToday($date) {
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return date('Y-m-d', $date) == date('Y-m-d', time());
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}
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/**
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* Returns true if given date was yesterday
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*
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* @param string $date Unix timestamp
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* @return boolean True if date was yesterday
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*/
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public static function wasYesterday($date) {
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return date('Y-m-d', $date) == date('Y-m-d', strtotime('yesterday'));
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}
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/**
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* Returns true if given date is in this year
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*
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* @param string $date Unix timestamp
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* @return boolean True if date is in this year
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*/
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public static function isThisYear($date) {
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return date('Y', $date) == date('Y', time());
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}
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/**
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* Returns true if given date is in this week
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*
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* @param string $date Unix timestamp
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* @return boolean True if date is in this week
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*/
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public static function isThisWeek($date) {
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return date('W Y', $date) == date('W Y', time());
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}
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/**
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* Returns true if given date is in this month
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*
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* @param string $date Unix timestamp
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* @return boolean True if date is in this month
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*/
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public static function isThisMonth($date) {
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return date('m Y',$date) == date('m Y', time());
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}
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/**
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* Returns either a relative date or a formatted date depending
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* on the difference between the current time and given datetime.
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* $datetime should be in a <i>strtotime</i>-parsable format, like MySQL's datetime datatype.
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*
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* Options:
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* 'format' => a fall back format if the relative time is longer than the duration specified by end
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* 'end' => The end of relative time telling
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*
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* Relative dates look something like this:
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* 3 weeks, 4 days ago
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* 15 seconds ago
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* Formatted dates look like this:
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* on 02/18/2004
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*
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* The returned string includes 'ago' or 'on' and assumes you'll properly add a word
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* like 'Posted ' before the function output.
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*
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* @param string $dateString Datetime string
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* @param array $options Default format if timestamp is used in $dateString
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* @return string Relative time string.
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*/
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function timeAgoInWords($dateTime, $options = array()) {
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$now = time();
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$inSeconds = strtotime($dateTime);
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$backwards = ($inSeconds > $now);
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$format = 'j/n/y';
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$end = '+1 month';
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if (is_array($options)) {
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if (isset($options['format'])) {
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$format = $options['format'];
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unset($options['format']);
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}
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if (isset($options['end'])) {
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$end = $options['end'];
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unset($options['end']);
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}
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} else {
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$format = $options;
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}
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if ($backwards) {
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$futureTime = $inSeconds;
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$pastTime = $now;
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} else {
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$futureTime = $now;
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$pastTime = $inSeconds;
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}
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$diff = $futureTime - $pastTime;
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// If more than a week, then take into account the length of months
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if ($diff >= 604800) {
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$current = array();
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$date = array();
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list($future['H'], $future['i'], $future['s'], $future['d'], $future['m'], $future['Y']) = explode('/', date('H/i/s/d/m/Y', $futureTime));
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list($past['H'], $past['i'], $past['s'], $past['d'], $past['m'], $past['Y']) = explode('/', date('H/i/s/d/m/Y', $pastTime));
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$years = $months = $weeks = $days = $hours = $minutes = $seconds = 0;
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if ($future['Y'] == $past['Y'] && $future['m'] == $past['m']) {
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$months = 0;
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$years = 0;
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} else {
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if ($future['Y'] == $past['Y']) {
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$months = $future['m'] - $past['m'];
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} else {
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$years = $future['Y'] - $past['Y'];
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$months = $future['m'] + ((12 * $years) - $past['m']);
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if ($months >= 12) {
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$years = floor($months / 12);
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$months = $months - ($years * 12);
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}
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if ($future['m'] < $past['m'] && $future['Y'] - $past['Y'] == 1) {
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$years --;
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}
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}
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}
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if ($future['d'] >= $past['d']) {
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$days = $future['d'] - $past['d'];
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} else {
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$daysInPastMonth = date('t', $pastTime);
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$daysInFutureMonth = date('t', mktime(0, 0, 0, $future['m'] - 1, 1, $future['Y']));
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if (!$backwards) {
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$days = ($daysInPastMonth - $past['d']) + $future['d'];
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} else {
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$days = ($daysInFutureMonth - $past['d']) + $future['d'];
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}
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if ($future['m'] != $past['m']) {
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$months --;
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}
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}
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if ($months == 0 && $years >= 1 && $diff < ($years * 31536000)) {
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$months = 11;
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$years --;
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}
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if ($months >= 12) {
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$years = $years + 1;
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$months = $months - 12;
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}
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if ($days >= 7) {
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$weeks = floor($days / 7);
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$days = $days - ($weeks * 7);
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}
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} else {
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$years = $months = $weeks = 0;
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$days = floor($diff / 86400);
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$diff = $diff - ($days * 86400);
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$hours = floor($diff / 3600);
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$diff = $diff - ($hours * 3600);
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$minutes = floor($diff / 60);
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$diff = $diff - ($minutes * 60);
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$seconds = $diff;
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}
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$relativeDate = '';
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$diff = $futureTime - $pastTime;
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if ($diff > abs($now - strtotime($end))) {
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$relativeDate = sprintf('on %s', date($format, $inSeconds));
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} else {
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if ($years > 0) {
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// years and months and days
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$relativeDate .= ($relativeDate ? ', ' : '') . $years . ' ' . ($years==1 ? 'año':'años');
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$relativeDate .= $months > 0 ? ($relativeDate ? ', ' : '') . $months . ' ' . ($months==1 ? 'mes':'meses') : '';
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$relativeDate .= $weeks > 0 ? ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas') : '';
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$relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : '';
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} elseif (abs($months) > 0) {
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// months, weeks and days
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$relativeDate .= ($relativeDate ? ', ' : '') . $months . ' ' . ($months==1 ? 'mes':'meses');
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$relativeDate .= $weeks > 0 ? ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas') : '';
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$relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : '';
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} elseif (abs($weeks) > 0) {
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// weeks and days
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$relativeDate .= ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas');
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$relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : '';
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} elseif (abs($days) > 0) {
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// days and hours
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$relativeDate .= ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días');
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$relativeDate .= $hours > 0 ? ($relativeDate ? ', ' : '') . $hours . ' ' . ($hours==1 ? 'hora':'horas') : '';
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} elseif (abs($hours) > 0) {
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// hours and minutes
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$relativeDate .= ($relativeDate ? ', ' : '') . $hours . ' ' . ($hours==1 ? 'hora':'horas');
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$relativeDate .= $minutes > 0 ? ($relativeDate ? ', ' : '') . $minutes . ' ' . ($minutes==1 ? 'minuto':'minutos') : '';
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} elseif (abs($minutes) > 0) {
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// minutes only
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$relativeDate .= ($relativeDate ? ', ' : '') . $minutes . ' ' . ($minutes==1 ? 'minuto':'minutos');
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} else {
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// seconds only
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$relativeDate .= ($relativeDate ? ', ' : '') . $seconds . ' ' . ($seconds==1 ? 'segundo':'segundos');
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}
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if (!$backwards) {
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$relativeDate = sprintf('Hace %s', $relativeDate);
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}
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}
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return $relativeDate;
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}
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}
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