in reply to How to check the request is (GET OR POST) in CGI

Use request_method:
Returns the method used to access your script, usually one of "POST", "GET" or "HEAD". If running from the command line it will be undef.
($q=q:Sq=~/;[c](.)(.)/;chr(-||-|5+lengthSq)`"S|oS2"`map{chr |+ord }map{substrSq`S_+|`|}3E|-|`7**2-3:)=~y+S|`+$1,++print+eval$q,q,a,