Sorry to spoil that, but I think if you present a solution, it should work:

running it gives me:

syntax error at C:\WINNT\Profiles\int5398\src\test\xx.pl line 9, near 
+"if $option "
syntax error at C:\WINNT\Profiles\int5398\src\test\xx.pl line 19, near
+ "}"
[download]

The line while () { starts an endless loop.

$returned_result will be empty.

And even if it would contain something, it would be in reverse order.

Please test your code before posting.