The first time you use $day is to do a numeric comparison. But you haven't yet made _sure_ that the value is a number. Perhaps you could check first, by doing something like: 
  if( $days =~ m/^\d+$/ ) {
    ~ ~ all your code that depends on $days being numeric
  } else {
    ~ ~ print nicely nasty message about bad input
  }

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In reply to Re: String/Numeric Manipulation by shenme
in thread String/Numeric Manipulation by Ms. T.

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