this line is overwriting the array

[rabb]

ok so i am creating a multidementional array and this line only allows one element into it. How do i check to see if \[code\]$related[$row_r['Category_name']][$row_r['name']]\[/code\]is greater then 0 and if so dont overwrite the value and just append onto it\[code\]while($row_r = mysql_fetch_assoc($result)){ $related[$row_r['Category_name']][$row_r['name']] = $row_r; //this line\[/code\]