Hi internals, I would like to propose making the use of arithmetic/bitwise operators on arrays, resources and (non-overloaded) objects a TypeError exception:
https://wiki.php.net/rfc/arithmetic_operator_type_checks This is inspired by some of the recent discussions, in particular the operator overloading RFC (where the fact that operations on non-overloaded objects still succeed with just a notice was criticized) and the increment/decrement RFC, which handles the array case of this proposal for inc/dec only. I think as-is, this RFC should be completely uncontroversial. However, there is an open question on whether we want to make this slightly more strict, in order to align the semantics with the rules for weak parameter type checks for ints/floats. If we do that, then this RFC could be a stepping stone towards making "implicit" internal casts use the (weak) parameter type checking semantics more generally, which I think would be a good idea. The current explicit cast semantics we use everywhere are too forgiving for most circumstances (e.g. an array is almost always not a reasonable input where an integer is expected). Regards, Nikita
