Help for this page

Select Code to Download


  1. or download this
    if ( defined $r && ref $r && ref $r eq 'HASH' && keys %$r ) { ... }
  2. or download this
    if (ref($r || "") eq 'HASH' && keys %$r) { ... }
  3. or download this
    if (ref $r eq 'HASH' && keys %$r) { ... }