time_elapsed_string.php

time_elapsed_string.php

<?php

	$timenow = time();

	class LANG {
		public function sprintf($string) {
			$arg_list = func_get_args();
			$num_args = count($arg_list);

			for($i = 1; $i < $num_args; $i++)
			{
				$string = str_replace('{'.$i.'}', $arg_list[$i], $string);
			}

			return $string;
		}
	}

	$l['rel_justnow'] 				 = "Just now";
	$l['rel_ago']					 = "ago";
	$l['rel_left']					 = "left";
	$l['rel_less_than']				 = "Less than one minute";
	$l['rel_second_single']			 = "second";
	$l['rel_second_plural']			 = "seconds";
	$l['rel_minute_single']			 = "minute";
	$l['rel_minute_plural']			 = "minutes";
	$l['rel_day_single']			 = "day";
	$l['rel_day_plural']			 = "days";
	$l['rel_hour_single']			 = "hour";
	$l['rel_hour_plural']			 = "hours";
	$l['rel_month_single']		 	 = "month";
	$l['rel_month_plural']		 	 = "months";
	$l['rel_year_single']			 = "year";
	$l['rel_year_plural']			 = "years";
	$l['rel_format']				 = "{1} {2}";

	function time_elapsed_string($stamp, $full = false) {
		global $l, $timenow;

		$diff = ($timenow>$stamp) ? (int)$timenow-$stamp : (int)$stamp-$timenow;
		$over = ($timenow>$stamp) ? 'ago' : 'left';

		$formatter['year']		= 31104000;		$how_much['year']		= '100';
		$formatter['month']		= 2592000;		$how_much['month']		= '12';
		$formatter['day']		= 86400;		$how_much['day']		= '30';
		$formatter['hour']		= 3600;			$how_much['hour']		= '24';
		$formatter['minute']	= 60;			$how_much['minute']		= '60';
		$formatter['second']	= 1;			$how_much['second']		= '60';

		foreach($formatter as $date => $overstamp) {
			$calc[$date] = floor($diff/$overstamp) % $how_much[$date];
			$sp = ($calc[$date] == "1") ? "single" : "plural";

			if($calc[$date] == 0) {
				if($date != 'second') {
					unset($calc[$date]);
				}
			} else {
				$tostring[$date] = $calc[$date]." ".$l['rel_'.$date.'_'.$sp];
			}
			$reminder = $date;
		}

		if(count($calc) == '1' && $reminder = 'seconds') {
			if($calc['second'] == '0') {
				$tostring[$date] = $l['rel_justnow'];
			} else {
				$tostring[$date] = $l['rel_less_than'];
			}
		} else {
			$tostring[$date] = LANG::sprintf($l['rel_format'], $calc[$date]." ".$l['rel_'.$date.'_'.$sp], $l['rel_'.$over]);
		}

		if($full == false) {
			$display = LANG::sprintf($l['rel_format'], array_shift(array_slice($tostring, 0, 1)), $l['rel_'.$over]);
		} else {
			$display = implode(", ", $tostring);
		}

		return $display;
	}

	$time = "1367267755";

	echo time_elapsed_string($time, true).PHP_EOL;