$data =~ /tag2=(\d+)/;
$tag2 = $1 if $1;

[download]
I am afraid this will not work correctly if the regex fails, because $1 will still be set to its previous value (previous regex match). So that rather than testing $1, we should test whether the regex matched.

I think that you would need rather something like this: 

$tag1 = $1 if $data =~ /tag1=(\d+)/;
$tag2 = $1 if $data =~ /tag2=(\d+)/;

[download]

In reply to Re^2: ambiguous regex match by Laurent_R
in thread ambiguous regex match by Hosen1989

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