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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20 | View Code Duplication | class WordPress extends Basic |
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21 | { |
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22 | |||
23 | /** |
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24 | * |
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25 | * @param string $email_address |
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26 | * @return boolean |
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27 | * @throws EmailValidationException |
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28 | */ |
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29 | public function validate($email_address) |
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41 | } |
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42 | // End of file WordPressEmailValidation.php |
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44 |