| 1 | <?php |
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| 25 | trait EmailTrait |
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| 26 | { |
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| 27 | /** |
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| 28 | * @var string a valid email |
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| 29 | */ |
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| 30 | private $email; |
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| 31 | |||
| 32 | /** |
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| 33 | * @param string $value the email |
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| 34 | * |
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| 35 | * @throws InvalidConfigException |
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| 36 | */ |
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| 37 | public function setEmail(string $value): void |
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| 47 | |||
| 48 | /** |
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| 49 | * @return string the email |
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| 50 | */ |
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| 51 | public function getEmail(): string |
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| 55 | } |
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| 56 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVarassignment in line 1 and the$higherassignment in line 2 are dead. The first because$myVaris never used and the second because$higheris always overwritten for every possible time line.