Copied here from https://github.com/sebastianbergmann/php-code-coverage/issues/984#issuecomment-1454892521.

Array
(
    [Foo->bar] => Array
        (
            [branches] => Array
                (
                    [0] => Array
                        (
                            [op_start] => 0
                            [op_end] => 6
                            [line_start] => 7
                            [line_end] => 10
                            [hit] => 0
                            [out] => Array
                                (
                                )

                            [out_hit] => Array
                                (
                                )
                        )
                )

            [paths] => Array
                (
                    [0] => Array
                        (
                            [path] => Array
                                (
                                    [0] => 0
                                )

                            [hit] => 0
                        )
                )
        )

    [bar] => Array
        (
            [branches] => Array
                (
                    [0] => Array
                        (
                            [op_start] => 0
                            [op_end] => 6
                            [line_start] => 7
                            [line_end] => 10
                            [hit] => 1
                            [out] => Array
                                (
                                )

                            [out_hit] => Array
                                (
                                )
                        )
                )

            [paths] => Array
                (
                    [0] => Array
                        (
                            [path] => Array
                                (
                                    [0] => 0
                                )

                            [hit] => 1
                        )
                )
        )
)

The Foo->bar array key is what we're looking at to generate the report, this states hit: 0. The bar key stands out to me here, it has the correct info, but there's no global function named bar() in this file so it shouldn't exist. It looks to me, like Xdebug is doing all the hard work correctly, but has a small bookkeeping error regarding the method name it's keeping track of things under.