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1 | <?php |
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2 | /** |
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3 | * This file is part of phpDocumentor. |
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4 | * |
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5 | * For the full copyright and license information, please view the LICENSE |
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6 | * file that was distributed with this source code. |
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7 | * |
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8 | * @copyright 2010-2018 Mike van Riel<[email protected]> |
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9 | * @license http://www.opensource.org/licenses/mit-license.php MIT |
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10 | * @link http://phpdoc.org |
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11 | */ |
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12 | |||
13 | /** |
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14 | * Test class |
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15 | */ |
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16 | class TTT |
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17 | { |
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18 | /** |
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19 | * Test method |
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20 | * @return string |
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21 | */ |
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22 | public function a() |
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23 | { |
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24 | $a = null ?? new class() { |
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0 ignored issues
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25 | public function export() |
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26 | { |
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27 | return null; |
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28 | } |
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29 | }; |
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30 | return 'test'; |
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31 | } |
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32 | } |
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33 |
This check looks for variable assignements that are either overwritten by other assignments or where the variable is not used subsequently.
Both the
$myVar
assignment in line 1 and the$higher
assignment in line 2 are dead. The first because$myVar
is never used and the second because$higher
is always overwritten for every possible time line.