time_past

gistfile1.aw

<?php 

public function time_past($time, $opt = array()) {
		// The default values
		$defOptions = array(
		'to' => time(),
		'parts' => 1,
		'precision' => 'minute',
		'distance' => TRUE,
		'separator' => ', '
		);
		$opt = array_merge($defOptions, $opt);
		// Default to current time if no to point is given
		(!$opt['to']) && ($opt['to'] = time());
		// Init an empty string
		$str = '';
		// To or From computation
		$diff = ($opt['to'] > $time) ? $opt['to']-$time : $time-$opt['to'];
		// An array of label => periods of seconds;
		$periods = array(
		'decade' => 315569260,
		'year' => 31556926,
		'month' => 2629744,
		'week' => 604800,
		'day' => 86400,
		'hour' => 3600,
		'minute' => 60,
		'second' => 1
		);
		// Round to precision
		if ($opt['precision'] != 'second')
		$diff = round(($diff/$periods[$opt['precision']])) * $periods[$opt['precision']];
		// Report the value is 'less than 1 ' precision period away
		(0 == $diff) && ($str = 'less than 1 '.$opt['precision']);
		// Loop over each period
		foreach ($periods as $label => $value) {
			// Stitch together the time difference string
			(($x=floor($diff/$value))&&$opt['parts']--) && $str.=($str?$opt['separator']:'').($x.' '.$label.($x>1?'s':''));
			// Stop processing if no more parts are going to be reported.
			if ($opt['parts'] == 0 || $label == $opt['precision']) break;
			// Get ready for the next pass
			$diff -= $x*$value;
		}
		$opt['distance'] && $str.=($str&&$opt['to']>$time)?' ago':' away';
		return $str;
	}