Convert a variable of array type to string type

As this example shows, even though the outputs look the same, they are different.

Code

var( People_Array = array('John Doe','Jane Doe', 'Joe Surname', 'John Doe') )

var( People_String = $People_Array->asString )

'People_Array: '+$People_Array+', is type: ' + $People_Array->type + '\n'

'People_String: '+$People_String+', is type: ' + $People_String->type

Result

People_Array: array(John Doe, Jane Doe, Joe Surname, John Doe), is type: array
People_String: array(John Doe, Jane Doe, Joe Surname, John Doe), is type: string