remove those comas as we don't need separated when we quote with qw. 
@names = qw(user_name house_name street_address phone_number date_of_b
+irth);

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Thanks for pointing out the bug. We all were concentrating on regex and not on the typo. Any way THANKS

In reply to Re^2: Interpolation inside regex by vc_will_do
in thread Interpolation inside regex by vc_will_do

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