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  1. or download this
    Useless use of a constant in void context at yourscript.pl line 7.
    Useless use of a constant in void context at yourscript.pl line 7.
    Useless use of a constant in void context at yourscript.pl line 7.
    Useless use of a constant in void context at yourscript.pl line 7.
    Useless use of a constant in void context at yourscript.pl line 7.
    
  2. or download this
    my @userids = ( 121,122,123,124,125,126 ); #etc...
    
    if ($userid[0] == 121) { do something... }
    if ($userid[1] == 122) { do somthing else... }
    
  3. or download this
    #! perl
    use warnings;
    ...
    userid[4]=125
    userid[5]=126
    userid[6]=127