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 namespace Anomaly\Streams\Platform\Entry; |
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15 | class EntryPresenter extends EloquentPresenter |
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16 | { |
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17 | |||
18 | /** |
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19 | * The resource object. |
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20 | * This is for IDE hinting. |
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21 | * |
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22 | * @var EntryInterface|EloquentModel |
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23 | */ |
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24 | protected $object; |
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25 | |||
26 | /** |
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27 | * Return the date string for created at. |
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28 | * |
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29 | * @return string |
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30 | */ |
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31 | public function createdAtDate() |
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37 | |||
38 | /** |
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39 | * Return the datetime string for created at. |
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40 | * |
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41 | * @return string |
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42 | */ |
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43 | public function createdAtDatetime() |
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49 | |||
50 | /** |
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51 | * Return the date string for updated at. |
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52 | * |
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53 | * @return string |
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54 | */ |
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55 | public function updatedAtDate() |
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61 | |||
62 | /** |
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63 | * Return the datetime string for updated at. |
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64 | * |
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65 | * @return string |
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66 | */ |
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67 | public function updatedAtDatetime() |
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73 | |||
74 | /** |
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75 | * Return a label. |
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76 | * |
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77 | * @param $text |
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78 | * @param string $context |
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79 | * @param string $size |
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80 | * @return string |
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81 | */ |
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82 | public function label($text = null, $context = null, $size = null) |
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107 | |||
108 | /** |
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109 | * Return the edit URL. |
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110 | * |
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111 | * @return string |
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112 | */ |
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113 | View Code Duplication | public function editUrl() |
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132 | |||
133 | /** |
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134 | * Return the edit link. |
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135 | * |
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136 | * @return string |
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137 | */ |
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138 | public function editLink() |
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142 | |||
143 | /** |
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144 | * Return the view URL. |
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145 | * |
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146 | * @return string |
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147 | */ |
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148 | View Code Duplication | public function viewUrl() |
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167 | |||
168 | /** |
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169 | * Return the view link. |
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170 | * |
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171 | * @return string |
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172 | */ |
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173 | public function viewLink() |
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177 | |||
178 | /** |
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179 | * When accessing a property of a decorated entry |
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180 | * object first check to see if the key represents |
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181 | * a streams field. If it does then return the field |
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182 | * type's presenter object. Otherwise handle normally. |
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183 | * |
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184 | * @param $key |
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185 | * @return mixed |
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186 | */ |
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187 | public function __get($key) |
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213 | } |
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214 |
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: