Variables in numeric expressions

You must use the script function Num to assign numeric values to variables in numeric expressions. If you do not, the variables will be treated as strings.

Examples

Example 19

Using the Num script function.

$a = 20;
$b = Num($a) + 30;
Result: $b=50

 

Example 20

Not using the Num script function.

$a = 20;
$b = $a + 30;
Result: $b=2030