Question

How can I put a variable with operation in the declaration of a drop down box?
I have a drop down box with the months and when user selects March, the result of the code below is 2+1. I get this is handled as string function but I don’t know how to make php handle it as it would result in 3.

echo "<option value=\"$i+1\">$month[$i]</option>\n";

Answer 1

You can break the operation out of quotes for it to evaluate as expected:

echo "<option value='" . ($i + 1) . "'>$month[$i]</option>\n";