Does anyone know of a way of checking within PHP if the script is running as either 32-bit or 64-bit? Currently I'm using PHP 5.3.5.

Ideally I'd like to write a function so my code can look like this:

```
if( is_32bit() === true ) {
    do_32bit_workaround();
}
do_everything_else();

```

Anyone have any thoughts?