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ENV{"varname"} -- inspect the value of an environment variable

  • Returns the current value of the environment variable in the CGI (Common Gateway Interface) environment. This is the environment that the CommandAndCGIScripts are running in.
  • Note: For security reasons, only those environment variables whose names match the regular expression in {AccessibleENV} in the Security Settings/Miscellaneous section of configure can be displayed. Any other variable will just be shown as an empty string, irrespective of its real value.
  • Example: %ENV{MOD_PERL}% displays as: not set
  • If an environment variable is undefined (as against being set to the empty string) it will be returned as not set.
  • Related: HTTP_HOST, REMOTE_ADDR, REMOTE_PORT, REMOTE_USER
Topic revision: r1 - 07 Jan 2009, ProjectContributor
 
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