A PHP Time Ago implementation, which cares about Timestamps WAY back in time, and returns their actual dates.

PHP_Time_Ago.php

<?php
/**
 * Returns a Pretty Time Ago string from given Timestamp. Returns bare date if
 * timestamp is way back in past.
 * @example	"posted".timeAgo(xx):	"posted just now".
 * 					"posted a few minutes ago"
 * 					"posted 14 minutes ago"
 * 					"posted today at 7:00PM"
 * 					"posted yesterday at 7:00PM"
 * 					"posted 7:00PM, Friday 29 August 2014"
 * @param	int $Timestamp The timestamp.
 * @return	string The Pretty string.
 * @author	Prashant Sinha <firstname,lastname>@outlook.com
 * @see		\time(), \date()
 * @since	v0.1 20140904
 * @version	v0.2
 */
function timeAgo($Timestamp) {
	/**
	 * @internal Get Time Difference and then return the String.
	 */
	$Ago = time() - $Timestamp;

	if ($Ago < 60) return "just now";
	elseif ($Ago < 120) return "a few minutes ago";
	elseif ($Ago < 3570) return round($Ago / 60)." minutes ago";
	elseif ($Ago < 86400) return "today, at ".date('g:iA', $Timestamp);
	elseif ($Ago < 172800) return "yesterday, at ".date('g:iA', $Timestamp);
	else return date('g:iA, j F Y', $Timestamp);
}
?>