strtotime-parsable format, like MySQL's datetime datatype. * * Options: * 'format' => a fall back format if the relative time is longer than the duration specified by end * 'end' => The end of relative time telling * * Relative dates look something like this: * 3 weeks, 4 days ago * 15 seconds ago * Formatted dates look like this: * on 02/18/2004 * * The returned string includes 'ago' or 'on' and assumes you'll properly add a word * like 'Posted ' before the function output. * * @param string $dateString Datetime string * @param array $options Default format if timestamp is used in $dateString * @return string Relative time string. */ function timeAgoInWords($dateTime, $options = array()) { $now = time(); $inSeconds = strtotime($dateTime); $backwards = ($inSeconds > $now); $format = 'j/n/y'; $end = '+1 month'; if (is_array($options)) { if (isset($options['format'])) { $format = $options['format']; unset($options['format']); } if (isset($options['end'])) { $end = $options['end']; unset($options['end']); } } else { $format = $options; } if ($backwards) { $futureTime = $inSeconds; $pastTime = $now; } else { $futureTime = $now; $pastTime = $inSeconds; } $diff = $futureTime - $pastTime; // If more than a week, then take into account the length of months if ($diff >= 604800) { $current = array(); $date = array(); list($future['H'], $future['i'], $future['s'], $future['d'], $future['m'], $future['Y']) = explode('/', date('H/i/s/d/m/Y', $futureTime)); list($past['H'], $past['i'], $past['s'], $past['d'], $past['m'], $past['Y']) = explode('/', date('H/i/s/d/m/Y', $pastTime)); $years = $months = $weeks = $days = $hours = $minutes = $seconds = 0; if ($future['Y'] == $past['Y'] && $future['m'] == $past['m']) { $months = 0; $years = 0; } else { if ($future['Y'] == $past['Y']) { $months = $future['m'] - $past['m']; } else { $years = $future['Y'] - $past['Y']; $months = $future['m'] + ((12 * $years) - $past['m']); if ($months >= 12) { $years = floor($months / 12); $months = $months - ($years * 12); } if ($future['m'] < $past['m'] && $future['Y'] - $past['Y'] == 1) { $years --; } } } if ($future['d'] >= $past['d']) { $days = $future['d'] - $past['d']; } else { $daysInPastMonth = date('t', $pastTime); $daysInFutureMonth = date('t', mktime(0, 0, 0, $future['m'] - 1, 1, $future['Y'])); if (!$backwards) { $days = ($daysInPastMonth - $past['d']) + $future['d']; } else { $days = ($daysInFutureMonth - $past['d']) + $future['d']; } if ($future['m'] != $past['m']) { $months --; } } if ($months == 0 && $years >= 1 && $diff < ($years * 31536000)) { $months = 11; $years --; } if ($months >= 12) { $years = $years + 1; $months = $months - 12; } if ($days >= 7) { $weeks = floor($days / 7); $days = $days - ($weeks * 7); } } else { $years = $months = $weeks = 0; $days = floor($diff / 86400); $diff = $diff - ($days * 86400); $hours = floor($diff / 3600); $diff = $diff - ($hours * 3600); $minutes = floor($diff / 60); $diff = $diff - ($minutes * 60); $seconds = $diff; } $relativeDate = ''; $diff = $futureTime - $pastTime; if ($diff > abs($now - strtotime($end))) { $relativeDate = sprintf('on %s', date($format, $inSeconds)); } else { if ($years > 0) { // years and months and days $relativeDate .= ($relativeDate ? ', ' : '') . $years . ' ' . ($years==1 ? 'año':'años'); $relativeDate .= $months > 0 ? ($relativeDate ? ', ' : '') . $months . ' ' . ($months==1 ? 'mes':'meses') : ''; $relativeDate .= $weeks > 0 ? ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas') : ''; $relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : ''; } elseif (abs($months) > 0) { // months, weeks and days $relativeDate .= ($relativeDate ? ', ' : '') . $months . ' ' . ($months==1 ? 'mes':'meses'); $relativeDate .= $weeks > 0 ? ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas') : ''; $relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : ''; } elseif (abs($weeks) > 0) { // weeks and days $relativeDate .= ($relativeDate ? ', ' : '') . $weeks . ' ' . ($weeks==1 ? 'semana':'semanas'); $relativeDate .= $days > 0 ? ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días') : ''; } elseif (abs($days) > 0) { // days and hours $relativeDate .= ($relativeDate ? ', ' : '') . $days . ' ' . ($days==1 ? 'día':'días'); $relativeDate .= $hours > 0 ? ($relativeDate ? ', ' : '') . $hours . ' ' . ($hours==1 ? 'hora':'horas') : ''; } elseif (abs($hours) > 0) { // hours and minutes $relativeDate .= ($relativeDate ? ', ' : '') . $hours . ' ' . ($hours==1 ? 'hora':'horas'); $relativeDate .= $minutes > 0 ? ($relativeDate ? ', ' : '') . $minutes . ' ' . ($minutes==1 ? 'minuto':'minutos') : ''; } elseif (abs($minutes) > 0) { // minutes only $relativeDate .= ($relativeDate ? ', ' : '') . $minutes . ' ' . ($minutes==1 ? 'minuto':'minutos'); } else { // seconds only $relativeDate .= ($relativeDate ? ', ' : '') . $seconds . ' ' . ($seconds==1 ? 'segundo':'segundos'); } if (!$backwards) { $relativeDate = sprintf('Hace %s', $relativeDate); } } return $relativeDate; } }