<?php
/*
Plugin Name: About Ago
Plugin URI: http://drnoble.co.uk/archives/2005-03-03/wordpress-plugin-about-ago/
Description: adds a function for the approximate time since the post
Version: 0.3
Author: Donald Noble
Author URI: http://drnoble.co.uk
*/
function drn_about_ago($pdate) {

$tpassed = time() - strtotime($pdate);

if($tpassed < 0)
{
	return('some time');
}
else
{
	
	if($tpassed > 360*24*60*60) // more than 360 days
	{
		$num = date('Y',$tpassed) - 1970;
		$unit = "year";
	}
	elseif($tpassed > 28*24*60*60) // more than 28 days
	{
		$num = date('n',$tpassed);
		$unit = "month";
	}
	elseif($tpassed > 6.5*24*60*60) // more than 6.5 days
	{
		$num = floor(($tpassed+12*60*60)/(7*24*60*60)); // include 12 hours before full week
		$unit = "week";
	}
	elseif($tpassed > 23*60*60) // more than 23 hours
	{
		$num = floor(($tpassed+60*60)/(24*60*60)); // include 1 hour before full day
		$unit = "day";
	}
	elseif($tpassed > 55*60) // more than 55 minutes
	{
		$num = floor(($tpassed+5*60)/(60*60)); // include 5 minutes before full hour
		$unit = "hour";
	}
	elseif($tpassed > 30*60) // more than 30 minutes
	{
		$phrase = "over half an hour";
	}
	else // 
	{
		$phrase = "just minutes";
	}
	
	if(! $phrase) // if havn't already set phrase above
	{
		switch($num)
		{
			case 0: $number = 'not even one'; break; // shouldn't be used but here anyway
			case 1: $unit=='hour' ? $number = 'an' : $number = 'a'; break;
			case 2: $number = 'two'; break;
			case 3: $number = 'three'; break;
			case 4: $number = 'four'; break;
			case 5: $number = 'five'; break;
			case 6: $number = 'six'; break;
			case 7: $number = 'seven'; break;
			case 8: $number = 'eight'; break;
			case 9: $number = 'nine'; break;
			case 10: $number = 'ten'; break;
			case 11: $number = 'eleven'; break;
			case 12: $number = 'twelve'; break;
			case 13: $number = 'thirteen'; break;
			case 14: $number = 'fourteen'; break;
			case 15: $number = 'fifteen'; break;
			case 16: $number = 'sixteen'; break;
			case 17: $number = 'seventeen'; break;
			case 18: $number = 'eighteen'; break;
			case 19: $number = 'nineteen'; break;
			case 20: $number = 'twenty'; break;
			case 21: $number = 'twenty one'; break;
			case 22: $number = 'twenty two'; break;
			case 23: $number = 'twenty three'; break;
			case 24: $number = 'twenty four'; break;
			default: $number = 'many'; // will this ever be used?
		}
	
		if($num && $number!='many') // if a number, and not many, use about xxx
			$phrase = "about ";
		
		$phrase .= "$number $unit";
		
		if($num > 1) // if number not 1 use units
			$phrase .= "s";
		
	}	

	return("$phrase ago");

} //endif

}
?>