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:
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7 | class Access |
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8 | { |
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9 | use SplitPathTrait; |
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10 | use ValueTrait; |
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11 | |||
12 | /** |
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13 | * Set an array item to a given value using "dot" notation. |
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14 | * |
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15 | * If no key is given to the method, the entire array will be replaced. |
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16 | * |
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17 | * @param array $array |
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18 | * @param string $key |
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19 | * @param mixed $value |
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20 | * |
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21 | * @return array |
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22 | */ |
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23 | public function set(array &$array, $key, $value) |
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48 | |||
49 | /** |
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50 | * Get an item from an array using "dot" notation. |
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51 | * |
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52 | * @param array $array |
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53 | * @param string|callable $key |
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54 | * @param mixed $default |
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55 | * |
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56 | * @return mixed |
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57 | */ |
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58 | public function get(array $array, $key = null, $default = null) |
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78 | |||
79 | /** |
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80 | * Add an element to the array at a specific location |
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81 | * using the "dot" notation. |
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82 | * |
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83 | * @param array $array |
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84 | * @param $key |
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85 | * @param $value |
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86 | * |
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87 | * @return array |
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88 | */ |
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89 | public function add(array &$array, $key, $value) |
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102 | |||
103 | /** |
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104 | * Check if an item exists in an array using "dot" notation. |
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105 | * |
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106 | * @param array $array |
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107 | * @param string $key |
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108 | * |
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109 | * @return bool |
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110 | */ |
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111 | public function has(array $array, $key) |
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131 | |||
132 | /** |
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133 | * Updates data at the given path. |
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134 | * |
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135 | * @param array $array |
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136 | * @param array|string $key |
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137 | * @param callable $cb Callback to update the value. |
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138 | * |
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139 | * @return mixed Updated data. |
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140 | */ |
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141 | public function update(array $array, $key, callable $cb) |
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158 | |||
159 | /** |
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160 | * Remove one or many array items from a given array using "dot" notation. |
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161 | * |
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162 | * @param array $array |
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163 | * @param array|string $keys |
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164 | */ |
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165 | public function forget(array &$array, $keys) |
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193 | |||
194 | /** |
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195 | * Reset all numerical indexes of an array (start from zero). |
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196 | * Non-numerical indexes will stay untouched. Returns a new array. |
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197 | * |
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198 | * @param array $array |
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199 | * @param bool|false $deep |
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200 | * |
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201 | * @return array |
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202 | */ |
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203 | public function reset(array $array, $deep = false) |
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221 | |||
222 | /** |
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223 | * Get all of the given array except for a specified array of items. |
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224 | * |
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225 | * @param array $array |
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226 | * @param string[] $keys |
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227 | * |
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228 | * @return array |
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229 | */ |
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230 | public function except(array $array, $keys) |
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236 | } |
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237 |
This check looks for
@param
annotations where the type inferred by our type inference engine differs from the declared type.It makes a suggestion as to what type it considers more descriptive. In addition it looks for parameters that have the generic type
array
and suggests a stricter type likearray<String>
.Most often this is a case of a parameter that can be null in addition to its declared types.