The main difference is that cgiapp_init() is called once by new, while cgiapp_prerun() is called everytime a request comes in. In a standard CGI environment, both will always happen, but in a modperl environment, cgiapp_init() will only happen when the server first starts.

The order of operation in a CGI::Application is basically:

  1. cgiapp_init()
  2. setup()
  3. cgiapp_prerun()
  4. your selected run mode
  5. cgiapp_postrun()
  6. teardown()

cgiapp_init() and setup() are called in the class's new() method, while the remaining hooks are run in the class's run() method.

In reply to Re: In CGI::Application cgiapp_prerun vs. cgiapp_init? by Belgarion
in thread In CGI::Application cgiapp_prerun vs. cgiapp_init? by bradcathey

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