Stuff

<?php
$date = 1187839528;
function ago($timestamp){
	$difference = time() - $timestamp;

	if($difference < 60)
		return $difference." seconds ago";
	else{
		$difference = round($difference / 60);
		if($difference < 60)
	    	return $difference." minutes ago";
		else{
	    	$difference = round($difference / 60);
	    	if($difference < 24) {
	    		$hoursnow = date('G');
	    		$diff = $hoursnow - $difference;
	    		echo $diff; 
echo $date;
echo $hoursnow;
	    		if($diff < 0) return 'last night';
	    		if(date('a', strtotime("-$difference hours")) == 'am') return 'this morning';
	    		if(date('a', strtotime("-$difference hours")) == 'pm') return 'this evening';
	        	return $difference." hours ago";
	       }
	      	else{
	        	$difference = round($difference / 24);
	        	if($difference < 2) return 'yesterday';
	        	return $difference." days ago";
	       }
		}
	}
}

echo ago($date);

?>