$a=$_POST['stock']; $b=$_POST['qty']; $c=$a+$b; echo $c; When i execute this i get this error A non numeric value encoutered

Question

Even i use intval() for the two vatiables

When i put stock=1
qty=1
Output of c:1
What's the problem

Answer 1

$_POST isn't a numeric value i suppose.

Answer 2

When i convert to intval($a)
Intval($b)

Input
Stock:2
Qty:1

Output:
1

First variable value is taking to zero

What might be proble..

Answer 3

Print value of <$a> and <$b> before anything, see whether they contain valid data for addition into <$c>. Even better print value of $_POST["stock"] and $_POST["qty"] to be more convinced.