Check update values against existing to populate array of changes

gistfile1.aw

<?php

$query = 'SELECT tile_name, tile_price, quantity, old_lot_qty, nom_height, nom_width, nom_thick, exact_height, exact_width, box_tile_count, local_supply, rating, tile_notes FROM tiles WHERE tile_id=' . $iTile_id;
$result = mysql_fetch_array(mysql_query($query));

$aTile_changes = array();
$aTile_values  = array($sTile_name, $iTile_price, $iQuantity, $iOld_lot_qty, $iNom_height, $iNom_width, $iNom_thick, $iExact_height, $iExact_width, $iBox_tile_count, $iLocal_supply, $iRating, $sTile_notes);

$i = 0;
foreach ($result as $key => $row) {
	if ($aTile_values[$i] != $row || (empty($aTile_values[$i]) && $row != '')) {
		array_push($aTile_changes, $key => $aTile_values[$i]);
	}
	$i++
}

$query = "UPDATE tiles SET ";

foreach ($aTile_changes as  $key => $row) {
	$query .= $key . '=\'' . $row . '\', ';
}

$query = trim($query, ', ');

$query .= " WHERE tile_id = $iTile_id";

?>