I need some wisdom. I have routines where information is compared between data base fields and submited CGI paramiters and need to tell the difference between when a value is submitted as blank and when the parameter wasn't specified within a subroutine. For example I will use the routine 'update_info'. In the the first case the value should be set as blank and in the second it should be ignored and left alone.

$object->update_info(value=>"");

Compared to:

$object->update_info();

I'd like to do it with a small amount of code because there are many possible values to address. Please help me find my way. I've hit a wall on it.

Mark Kenney

In reply to Hashes and keys... by mkenney

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