in reply to
Re^4: What is true and false in Perl?
in thread What is true and false in Perl?
Not quite sure what you are saying, but neither is behavior different when run as a 'script' versus on the command line via -e, nor is the arithmetic operation 'ignored'.
print 42 * '0 but true', "\n";
print 42 * '0 but zonk', "\n";
Argument "0 but zonk" isn't numeric in multiplication (*) at 0_but.pl
Update: Verfied on ActiveState 5.8.9 and Strawberries 5.10.1, 5.12.3 and 5.14.2.