How can I recursively obtain the “parent ID” of rows in this MySQL table?

Question

My database looks like (pligg cms, sample data)

id  catID parentID   catName
1    1      0        location
2    2      0        color
3    3      1        US         


        

Answer 1

Based on @GWW answer

function getLocationArray($start){
    $link=dbConnect();//a function returning the link with your db
    $stack = array();
    $parent = $start;
    while($parent != 0){
        $query='SELECT catName,parentID from myTable where catId='.$parent;
        $result = mysql_query($query,$link);
        while($row = mysql_fetch_assoc($result)){
            $parent=$row['parentID'];
            $name=$row['catName'];
            $stack[] = $name;
            /*foreach($row as $cname => $cvalue){
            }*/
        }
    }
    $stack = array_reverse($stack);
    return $stack;
}
var_dump($stack);