Multiple conditions in the ternary operator safe?

Question

I have seen advice that says the ternary operator must not be nested.

I have tested the code below and it works okay. My question is, I haven\'t seen the ternary op

Answer 1

It's totally legal, it works and is "as reliable as if", but it looks ugly.

If you put each ternary statement inside parenthesis, nesting would be fine too:

$res = ( $rule1 ? true : ( $rule2 ? true : false ) )

The only thing that is advised against in the manual is nesting without parenthesis like this:

$res = ( $rule1 ? true : $rule2 ? true : false )