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 | View Code Duplication | class UserInfo extends AbstractUriPart |
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| 9 | { |
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| 10 | protected static $unencoded_characters = array(":"); |
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| 11 | protected static $compositions = array( |
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| 12 | "unreserved_characters", |
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| 13 | "sub_delims_characters", |
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| 14 | ); |
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| 15 | |||
| 16 | protected static $part_pattern; |
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| 17 | |||
| 18 | /** |
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| 19 | * UserInfo constructor. Accepts a string representing a URI user info component. Construction will throw an |
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| 20 | * exception if the user info is not a string. |
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| 21 | * |
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| 22 | * Construction accepts strings that have been percent-encoded as well as strings that have not been percent-encoded |
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| 23 | * and will encode invalid characters. |
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| 24 | * |
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| 25 | * Construction with a string that includes both encoded and decoded characters will be assumed to be an encoded |
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| 26 | * string, resulting in double-encoding. |
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| 27 | * |
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| 28 | * userinfo = *( unreserved / pct-encoded / sub-delims / ":" ) |
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| 29 | * unreserved = ALPHA / DIGIT / "-" / "." / "_" / "~" |
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| 30 | * pct-encoded = "%" HEXDIG HEXDIG |
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| 31 | * sub-delims = "!" / "$" / "&" / "'" / "(" / ")" / "*" / "+" / "," / ";" / "=" |
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| 32 | * |
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| 33 | * @see https://tools.ietf.org/html/rfc3986#appendix-A |
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| 34 | * |
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| 35 | * @throws \InvalidArgumentException |
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| 36 | * |
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| 37 | * @param string $user_info A string representing a URI fragment |
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| 38 | */ |
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| 39 | 115 | public function __construct($user_info) |
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| 43 | |||
| 44 | /** |
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| 45 | * Returns a string representation of the user info formatted so that it can be compiled into a complete URI string |
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| 46 | * per the Uri object's string specification. |
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| 47 | * |
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| 48 | * If user info is empty, toUriString returns an empty string; if user info is not empty, toUriString returns |
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| 49 | * the user info suffixed with an at(@). |
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| 50 | * |
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| 51 | * @see Uri::__toString |
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| 52 | * |
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| 53 | * @return string A string representation of the user info formatted for a complete URI string |
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| 54 | */ |
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| 55 | 85 | public function toUriString() |
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| 65 | } |
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| 66 |