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 |
||
31 | class DownloaderComment extends AbstractCheck |
||
32 | { |
||
33 | /** |
||
34 | * Guess magento edition and version |
||
35 | * |
||
36 | * @return array|boolean |
||
37 | */ |
||
38 | public function getInfo() |
||
49 | |||
50 | /** |
||
51 | * Guess Magento year from downloader url |
||
52 | * |
||
53 | * @param Response $response |
||
54 | * |
||
55 | * @return string|boolean |
||
56 | */ |
||
57 | public function getMagentoYear(Response $response) |
||
68 | |||
69 | /** |
||
70 | * Guess Magento version from downloader body |
||
71 | * |
||
72 | * @param Response $response |
||
73 | * |
||
74 | * @return string|boolean |
||
75 | */ |
||
76 | public function getMagentoVersion(Response $response) |
||
85 | |||
86 | /** |
||
87 | * Guess Magento edition from copyright year and version |
||
88 | * |
||
89 | * @param string $year |
||
90 | * @param string $version |
||
91 | * |
||
92 | * @return string |
||
93 | */ |
||
94 | protected function getMagentoEditionByYearAndVersion($year, $version) |
||
98 | } |
||
99 |
In PHP, under loose comparison (like
==
, or!=
, orswitch
conditions), values of different types might be equal.For
string
values, the empty string''
is a special case, in particular the following results might be unexpected: