Duplicate code is one of the most pungent code smells. A rule that is often used is to re-structure code once it is duplicated in three or more places.
Common duplication problems, and corresponding solutions are:
| 1 | <?php |
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| 8 | class Post extends ActiveRecordModelExtender |
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| 9 | {
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| 10 | |||
| 11 | /** |
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| 12 | * @var string $tableName name of the database table. |
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| 13 | */ |
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| 14 | protected $tableName = "ramverk1_posts"; |
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| 15 | |||
| 16 | /** |
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| 17 | * Columns in the table. |
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| 18 | * |
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| 19 | * @var integer $id primary key auto incremented. |
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| 20 | */ |
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| 21 | public $id; |
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| 22 | public $user; |
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| 23 | public $questionId; # Connection to new Question() |
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| 24 | |||
| 25 | public $type; # question/answer |
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| 26 | public $text; |
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| 27 | |||
| 28 | public $created; |
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| 29 | |||
| 30 | public $di; |
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| 31 | |||
| 32 | |||
| 33 | /** |
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| 34 | * Constructor injects with DI container. |
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| 35 | * |
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| 36 | */ |
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| 37 | public function __construct($di = null) |
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| 41 | /** |
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| 42 | * Returns post with markdown and gravatar |
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| 43 | * @param string $sql |
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| 44 | * @param array $param |
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| 45 | * |
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| 46 | * @return array |
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| 47 | */ |
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| 48 | public function getAllPosts($sql, $params) |
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| 71 | |||
| 72 | /** |
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| 73 | * return question/answer, three attributes are set, comments connected to them is an array. |
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| 74 | * |
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| 75 | * @return object |
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| 76 | */ |
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| 77 | public function getPost($sql, $params) |
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| 95 | |||
| 96 | /** |
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| 97 | * Check if a post belongs to user |
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| 98 | * |
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| 99 | * |
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| 100 | * @return boolean |
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| 101 | */ |
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| 102 | View Code Duplication | public function controlAuthority($name) |
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| 114 | } |
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| 115 |
This check looks for PHPDoc comments describing methods or function parameters that do not exist on the corresponding method or function. It has, however, found a similar but not annotated parameter which might be a good fit.
Consider the following example. The parameter
$irelandis not defined by the methodfinale(...).The most likely cause is that the parameter was changed, but the annotation was not.