misread OP or it has changed?
Hunhhhh?
OP's bitwise OR of a string doesn't puzzle me, but "2|10 = 12" does.
perl -e "use 5.012; say 2|8;"
10
and that's even an example (*nix style quoting), in perlop:
print "false\n" if (8 | 2) != 10;
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