Just move the variable declaration above the first if modifier e.g 
my @xxx;
@xxx = (one, two, three) if ( $op eq "numbers" );
@xxx = (four, five) if ( $op eq "alpha" ); 
@xxx = (six, ten) if ( $op eq "alp" );

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You'll no longer get the warning as you won't be declaring the @xxx multiple times (as lexicals are declared at compile-time (i.e when it's putting the program together)).
HTH

_________
broquaint

In reply to Re: declaring same variable by broquaint
in thread declaring same variable by samy1212

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