ORDER by the new values

[MitchEvans]

I have some code that works out the distance between two post codes, when I echo the results they come up in the order they are in the database. How do I get them to order by these new values, so the smallest one first.

function calc_postcode_seperation($pcodeA,$pcodeB) 

{ 

// PCODE A 

$result=mysql_query("SELECT * FROM postcodes WHERE Pcode='$pcodeA' LIMIT 1"); 

$row=mysql_fetch_array($result); 

$gridn[0]=$row[Grid_N]; 

$gride[0]=$row[Grid_E]; 

// PCODE B 
$result=mysql_query("SELECT * FROM postcodes WHERE Pcode='$pcodeB' LIMIT 1"); 

$row=mysql_fetch_array($result); 

$gridn[1]=$row[Grid_N]; 

$gride[1]=$row[Grid_E]; 

// TAKE GRID REFS FROM EACH OTHER. 

$distance_n=$gridn[0]-$gridn[1]; 

$distance_e=$gride[0]-$gride[1]; 

// CALCULATE THE DISTANCE BETWEEN THE TWO POINTS 

$hypot=sqrt(($distance_n*$distance_n)+($distance_e*$distance_e)); 

$text .='Distance between '.$pcodeA.' and '.$pcodeB.' is: '.round($hypot/1000*0.6214,2).'miles'; 
$distance .=round($hypot/1000*0.6214,2);
return $distance; 
}
$sorter = "SELECT * FROM directory WHERE authorised = 'Y'";
$sorterResults = mysql_query($sorter);
while ($sorterRow = mysql_fetch_array ($sorterResults)){
	$sortpostcode = $sorterRow["postcode"];
	$sortid = $sorterRow["id"];
                $dir1 = posted value from previous page
	$checksortpost = substr("$sortpostcode",0,4);
	$distancetocleanersort = calc_postcode_seperation("$dir1","$checksortpost");
echo "$distancetocleanersort<br>";
	}

Is there any way of putting a function into the query?