Arithmetic operation with unsupported operands
Reports arithmetic and bitwise expressions with unsupported operands.
Starting with PHP 8.0, using the arithmetic and bitwise operators
-- when one of the operands is an array, resource, or non-overloaded object will result in a
TypeError. The only exception is the
array + array merge operation, which remains supported.
See PHP's internal test source for the complete list of operations.
PhpStorm 2023.3, Qodana for PHP 2023.3