PHP - cannot use a scalar as an array warning
You need to set$final[$id] to an array before adding elements to it. Intiialize it with either
$final[$id] = array();$final[$id][0] = 3;$final[$id]['link'] = "/".$row['permalink'];$final[$id]['title'] = $row['title'];or
$final[$id] = array(0 => 3);$final[$id]['link'] = "/".$row['permalink'];$final[$id]['title'] = $row['title'];
A bit late, but to anyone who is wondering why they are getting the "Warning: Cannot use a scalar value as an array" message;
the reason is because somewhere you have first declared your variable with a normal integer or string and then later you are trying to turn it into an array.
hope that helps
The Other Issue I have seen on this is when nesting arrays this tends to throw the warning, consider the following:
$data = ["rs" => null]this above will work absolutely fine when used like:
$data["rs"] = 5;But the below will throw a warning ::
$data = [ "rs" => [ "rs1" => null; ] ]..$data[rs][rs1] = 2; // this will throw the warning unless assigned to an array