"< $i" results in a string similar to "< SCALAR(0x814f66c)" because references can't exist in a string (by definition). open my $myfile, "< $i" doesn't find a file named SCALAR(0x814f66c), so it returns an error.

Since 5.8, when you use the three arg form of open and the third arg is a scalar reference, the referenced scalar is used as a virtual file from which data can be read or to which data can be written.

In reply to Re: Open Function Question by ikegami
in thread Open Function Question by bichonfrise74

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