thanks.i know that when we want put an array for a key we have to reference to that for calling it back.but when i change to following code it is still not working and i have error.

     my $m=(${@{$site1{$_}}}[1]-${@{$site2{$_}}}[1]);
     my $n=(${@{$site1{$_}}}[0]-${@{$site2{$_}}}[0]);

[download]

now,

 @{$site1{$_}}

is a reference,isnt it?

In reply to Re^2: hash references by Anonymous Monk
in thread hash references by Anonymous Monk

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