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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| 15 | View Code Duplication | class VideoNote extends BaseType implements TypeInterface  | 
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| 16 | { | 
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| 17 | /**  | 
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| 18 |      * {@inheritdoc} | 
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| 19 | *  | 
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| 20 | * @var array  | 
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| 21 | */  | 
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| 22 | static protected $requiredParams = ['file_id', 'length', 'duration'];  | 
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| 23 | |||
| 24 | /**  | 
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| 25 |      * {@inheritdoc} | 
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| 26 | *  | 
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| 27 | * @var array  | 
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| 28 | */  | 
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| 29 | static protected $map = [  | 
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| 30 | 'file_id' => true,  | 
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| 31 | 'length' => true,  | 
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| 32 | 'duration' => true,  | 
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| 33 | 'thumb' => PhotoSize::class,  | 
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| 34 | 'file_size' => true  | 
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| 35 | ];  | 
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| 36 | |||
| 37 | /**  | 
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| 38 | * Unique identifier for this file  | 
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| 39 | *  | 
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| 40 | * @var string  | 
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| 41 | */  | 
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| 42 | protected $fileId;  | 
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| 43 | |||
| 44 | /**  | 
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| 45 | * Duration of the video note in seconds as defined by sender  | 
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| 46 | *  | 
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| 47 | * @var int  | 
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| 48 | */  | 
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| 49 | protected $duration;  | 
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| 50 | |||
| 51 | /**  | 
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| 52 | * Value of video width and height (diameter of the video message) as defined by sender  | 
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| 53 | *  | 
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| 54 | * @var int  | 
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| 55 | */  | 
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| 56 | protected $length;  | 
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| 57 | |||
| 58 | /**  | 
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| 59 | * Video Note thumbnail  | 
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| 60 | *  | 
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| 61 | * @var PhotoSize  | 
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| 62 | */  | 
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| 63 | protected $thumb;  | 
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| 64 | |||
| 65 | /**  | 
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| 66 | * Optional. File size  | 
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| 67 | *  | 
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| 68 | * @var int  | 
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| 69 | */  | 
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| 70 | protected $fileSize;  | 
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| 71 | |||
| 72 | /**  | 
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| 73 | * @return int  | 
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| 74 | */  | 
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| 75 | 1 | public function getDuration()  | 
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| 79 | |||
| 80 | /**  | 
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| 81 | * @param int $duration  | 
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| 82 | *  | 
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| 83 | * @throws InvalidArgumentException  | 
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| 84 | */  | 
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| 85 | 4 | public function setDuration($duration)  | 
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| 93 | |||
| 94 | /**  | 
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| 95 | * @return string  | 
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| 96 | */  | 
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| 97 | 1 | public function getFileId()  | 
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| 101 | |||
| 102 | /**  | 
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| 103 | * @param string $fileId  | 
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| 104 | */  | 
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| 105 | 3 | public function setFileId($fileId)  | 
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| 109 | |||
| 110 | /**  | 
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| 111 | * @return int  | 
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| 112 | */  | 
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| 113 | 1 | public function getFileSize()  | 
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| 117 | |||
| 118 | /**  | 
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| 119 | * @param int $fileSize  | 
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| 120 | *  | 
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| 121 | * @throws InvalidArgumentException  | 
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| 122 | */  | 
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| 123 | 4 | public function setFileSize($fileSize)  | 
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| 131 | |||
| 132 | /**  | 
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| 133 | * @return int  | 
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| 134 | */  | 
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| 135 | public function getLength()  | 
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| 139 | |||
| 140 | /**  | 
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| 141 | * @param int $length  | 
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| 142 | *  | 
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| 143 | * @throws InvalidArgumentException  | 
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| 144 | */  | 
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| 145 | 2 | public function setLength($length)  | 
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| 153 | |||
| 154 | /**  | 
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| 155 | * @return PhotoSize  | 
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| 156 | */  | 
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| 157 | 2 | public function getThumb()  | 
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| 161 | |||
| 162 | /**  | 
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| 163 | * @param PhotoSize $thumb  | 
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| 164 | */  | 
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| 165 | 3 | public function setThumb(PhotoSize $thumb)  | 
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| 169 | |||
| 170 | }  | 
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| 171 |