bug in all 8.x versions #20396

    $arrA = array('a' => array('x' => 100), 'b' => array('x' => 200), 'c' => array('x' => 300));   // Array of Arrays
    $arrO = json_decode('[{"id": 1, "val": 10}, {"id": 2, "val": 20}, {"id": 3, "val": 30}]');     // Array of Objects
    foreach ($arrA as &$val) $val['x'] += 2; // this doesnt work (variable $val)
    //foreach ($arrA as &$val2) $val2['x'] += 2; // this works (renamed reference variable)
    foreach ($arrO as $val) {
        foreach ($arrA as $item) error_log($item['x']); // last item in $arrA changed from Array to Object in array $arrO !!!
        break; // other itteration resulted in same error (last item changed)
    }

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