Re^3: In place replace, ignoring between quotes

[SuicideJunkie]

If $var is true, then !$var is false ('').
If $var is false, then !$var is true (1).

That new value is then assigned to $var

Alternatively, you could say $var ^= 1 to do the same sort of thing, just with 1 and 0 instead of 1 and ''.

[trippledubs]

Nice. ^=1 makes more sense to me.

I guess I have a hard time understanding because if $var = 0 (or "") then you say $var = ! $var, why 1? Why not, 50? I mean practically speaking it works and that is what is important. I guess it doesn't have to exactly translate to English. Thanks for sharing!