Question

if i have a mysql query that returns some values, these values are categorized by ‘parent_id’ there are roughly 3-5 values pr ‘parent_id’. In my while loop, I only want to echo the first value from each ‘parent_id’. How do i go about this?

something like “if this is the first time this variable has this value do stuff”

Answer 1

Just add the conditional to your while loop …

$old_id = '';
while($row = $db->fetch_object()){
    if($row->parent_id != $old_id){
        //new parent_id
        $old_id = $row->parent_id;
        //... do stuff ...
    }
}