PHP round to integer

Question

I want to round a number and I need a proper integer because I want to use it as an array key. The first \"solution\" that comes to mind is:

$key = (int)roun         


        

Answer 1

What about simply adding 1/2 before casting to an int?

eg:

$int = (int) ($float + 0.5);

This should give a predictable result.