It would be helpful if repeating an option would collect all values instead of just the last value

[mcrump001]

With the following command:

command --myopt=value1 --myopt=value2

Calling:

$options->getOpt('myopt')

would return an array containing all values:

['value1', 'value2']

instead, it currently returns a string containing the last value:

'value2'

[mcrump001]

Great library by the way - really like the minimal requirements!