Total Complexity | 80 |
Total Lines | 490 |
Duplicated Lines | 2.86 % |
Changes | 0 |
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:
Complex classes like Arr often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use Arr, and based on these observations, apply Extract Interface, too.
1 | <?php |
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11 | class Arr |
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12 | { |
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13 | /** |
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14 | * Determine whether the given value is array accessible. |
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15 | * |
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16 | * @param mixed $value |
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17 | * @return bool |
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18 | */ |
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19 | public static function accessible($value) |
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20 | { |
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21 | return is_array($value) || $value instanceof ArrayAccess; |
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22 | } |
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23 | |||
24 | /** |
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25 | * Add an element to an array using "dot" notation if it doesn't exist. |
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26 | * |
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27 | * @param array $array |
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28 | * @param string $key |
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29 | * @param mixed $value |
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30 | * @return array |
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31 | */ |
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32 | public static function add($array, $key, $value) |
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33 | { |
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34 | if (is_null(static::get($array, $key))) { |
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35 | static::set($array, $key, $value); |
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36 | } |
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37 | |||
38 | return $array; |
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39 | } |
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40 | |||
41 | /** |
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42 | * Collapse an array of arrays into a single array. |
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43 | * |
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44 | * @param array $array |
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45 | * @return array |
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46 | */ |
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47 | public static function collapse($array) |
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48 | { |
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49 | $results = []; |
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50 | foreach ($array as $values) { |
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51 | if (! is_array($values)) { |
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52 | continue; |
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53 | } |
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54 | $results = array_merge($results, $values); |
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55 | } |
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56 | return $results; |
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57 | } |
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58 | |||
59 | /** |
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60 | * Divide an array into two arrays. One with keys and the other with values. |
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61 | * |
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62 | * @param array $array |
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63 | * @return array |
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64 | */ |
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65 | public static function divide($array) |
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66 | { |
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67 | return [array_keys($array), array_values($array)]; |
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68 | } |
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69 | |||
70 | /** |
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71 | * Flatten a multi-dimensional associative array with dots. |
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72 | * |
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73 | * @param array $array |
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74 | * @param string $prepend |
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75 | * @return array |
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76 | */ |
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77 | public static function dot($array, $prepend = '') |
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78 | { |
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79 | $results = []; |
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80 | |||
81 | foreach ($array as $key => $value) { |
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82 | if (is_array($value) && ! empty($value)) { |
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83 | $results = array_merge($results, static::dot($value, $prepend.$key.'.')); |
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84 | } else { |
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85 | $results[$prepend.$key] = $value; |
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86 | } |
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87 | } |
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88 | |||
89 | return $results; |
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90 | } |
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91 | |||
92 | /** |
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93 | * Get all of the given array except for a specified array of items. |
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94 | * |
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95 | * @param array $array |
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96 | * @param array|string $keys |
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97 | * @return array |
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98 | */ |
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99 | public static function except($array, $keys) |
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100 | { |
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101 | static::forget($array, $keys); |
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102 | |||
103 | return $array; |
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104 | } |
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105 | |||
106 | /** |
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107 | * Determine if the given key exists in the provided array. |
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108 | * |
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109 | * @param \ArrayAccess|array $array |
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110 | * @param string|int $key |
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111 | * @return bool |
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112 | */ |
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113 | public static function exists($array, $key) |
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114 | { |
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115 | if ($array instanceof ArrayAccess) { |
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116 | return $array->offsetExists($key); |
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117 | } |
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118 | |||
119 | return array_key_exists($key, $array); |
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120 | } |
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121 | |||
122 | /** |
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123 | * Return the first element in an array passing a given truth test. |
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124 | * |
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125 | * @param array $array |
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126 | * @param callable|null $callback |
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127 | * @param mixed $default |
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128 | * @return mixed |
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129 | */ |
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130 | public static function first($array, callable $callback = null, $default = null) |
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131 | { |
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132 | if (is_null($callback)) { |
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133 | if (empty($array)) { |
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134 | return $default; |
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135 | } |
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136 | |||
137 | foreach ($array as $item) { |
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138 | return $item; |
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139 | } |
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140 | } |
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141 | |||
142 | foreach ($array as $key => $value) { |
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143 | if (call_user_func($callback, $value, $key)) { |
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144 | return $value; |
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145 | } |
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146 | } |
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147 | |||
148 | return $default; |
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149 | } |
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150 | |||
151 | /** |
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152 | * Return the last element in an array passing a given truth test. |
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153 | * |
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154 | * @param array $array |
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155 | * @param callable|null $callback |
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156 | * @param mixed $default |
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157 | * @return mixed |
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158 | */ |
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159 | public static function last($array, callable $callback = null, $default = null) |
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160 | { |
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161 | if (is_null($callback)) { |
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162 | return empty($array) ? $default : end($array); |
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163 | } |
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164 | |||
165 | return static::first(array_reverse($array, true), $callback, $default); |
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166 | } |
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167 | |||
168 | /** |
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169 | * Remove one or many array items from a given array using "dot" notation. |
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170 | * |
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171 | * @param array $array |
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172 | * @param array|string $keys |
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173 | * @return void |
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174 | */ |
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175 | public static function forget(&$array, $keys) |
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176 | { |
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177 | $original = &$array; |
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178 | |||
179 | $keys = (array) $keys; |
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180 | |||
181 | if (count($keys) === 0) { |
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182 | return; |
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183 | } |
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184 | |||
185 | foreach ($keys as $key) { |
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186 | // if the exact key exists in the top-level, remove it |
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187 | if (static::exists($array, $key)) { |
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188 | unset($array[$key]); |
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189 | |||
190 | continue; |
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191 | } |
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192 | |||
193 | $parts = explode('.', $key); |
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194 | |||
195 | // clean up before each pass |
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196 | $array = &$original; |
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197 | |||
198 | while (count($parts) > 1) { |
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199 | $part = array_shift($parts); |
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200 | |||
201 | if (isset($array[$part]) && is_array($array[$part])) { |
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202 | $array = &$array[$part]; |
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203 | } else { |
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204 | continue 2; |
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205 | } |
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206 | } |
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207 | |||
208 | unset($array[array_shift($parts)]); |
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209 | } |
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210 | } |
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211 | |||
212 | /** |
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213 | * Get an item from an array using "dot" notation. |
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214 | * |
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215 | * @param \ArrayAccess|array $array |
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216 | * @param string $key |
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217 | * @param mixed $default |
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218 | * @return mixed |
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219 | */ |
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220 | public static function get($array, $key, $default = null) |
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221 | { |
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222 | if (! static::accessible($array)) { |
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223 | return $default; |
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224 | } |
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225 | |||
226 | if (is_null($key)) { |
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227 | return $array; |
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228 | } |
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229 | |||
230 | if (static::exists($array, $key)) { |
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231 | return $array[$key]; |
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232 | } |
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233 | |||
234 | foreach (explode('.', $key) as $segment) { |
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235 | if (static::accessible($array) && static::exists($array, $segment)) { |
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236 | $array = $array[$segment]; |
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237 | } else { |
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238 | return $default; |
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239 | } |
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240 | } |
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241 | |||
242 | return $array; |
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243 | } |
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244 | |||
245 | /** |
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246 | * Check if an item or items exist in an array using "dot" notation. |
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247 | * |
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248 | * @param \ArrayAccess|array $array |
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249 | * @param string|array $keys |
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250 | * @return bool |
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251 | */ |
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252 | public static function has($array, $keys) |
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253 | { |
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254 | if (is_null($keys)) { |
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255 | return false; |
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256 | } |
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257 | |||
258 | $keys = (array) $keys; |
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259 | |||
260 | if (! $array) { |
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261 | return false; |
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262 | } |
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263 | |||
264 | if ($keys === []) { |
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265 | return false; |
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266 | } |
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267 | |||
268 | foreach ($keys as $key) { |
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269 | $subKeyArray = $array; |
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270 | |||
271 | if (static::exists($array, $key)) { |
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272 | continue; |
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273 | } |
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274 | |||
275 | foreach (explode('.', $key) as $segment) { |
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276 | if (static::accessible($subKeyArray) && static::exists($subKeyArray, $segment)) { |
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277 | $subKeyArray = $subKeyArray[$segment]; |
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278 | } else { |
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279 | return false; |
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280 | } |
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281 | } |
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282 | } |
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283 | |||
284 | return true; |
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285 | } |
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286 | |||
287 | /** |
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288 | * Determines if an array is associative. |
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289 | * |
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290 | * An array is "associative" if it doesn't have sequential numerical keys beginning with zero. |
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291 | * |
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292 | * @param array $array |
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293 | * @return bool |
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294 | */ |
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295 | public static function isAssoc(array $array) |
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296 | { |
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297 | $keys = array_keys($array); |
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298 | |||
299 | return array_keys($keys) !== $keys; |
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300 | } |
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301 | |||
302 | /** |
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303 | * Get a subset of the items from the given array. |
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304 | * |
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305 | * @param array $array |
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306 | * @param array|string $keys |
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307 | * @return array |
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308 | */ |
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309 | public static function only($array, $keys) |
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310 | { |
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311 | return array_intersect_key($array, array_flip((array) $keys)); |
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312 | } |
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313 | |||
314 | /** |
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315 | * Pluck an array of values from an array. |
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316 | * |
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317 | * @param array $array |
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318 | * @param string|array $value |
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319 | * @param string|array|null $key |
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320 | * @return array |
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321 | */ |
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322 | public static function pluck($array, $value, $key = null) |
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323 | { |
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324 | $results = []; |
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325 | |||
326 | list($value, $key) = static::explodePluckParameters($value, $key); |
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327 | |||
328 | foreach ($array as $item) { |
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329 | $itemValue = static::data_get($item, $value); |
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330 | |||
331 | // If the key is "null", we will just append the value to the array and keep |
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332 | // looping. Otherwise we will key the array using the value of the key we |
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333 | // received from the developer. Then we'll return the final array form. |
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334 | if (is_null($key)) { |
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335 | $results[] = $itemValue; |
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336 | } else { |
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337 | $itemKey = static::data_get($item, $key); |
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338 | |||
339 | $results[$itemKey] = $itemValue; |
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340 | } |
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341 | } |
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342 | |||
343 | return $results; |
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344 | } |
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345 | |||
346 | /** |
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347 | * Explode the "value" and "key" arguments passed to "pluck". |
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348 | * |
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349 | * @param string|array $value |
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350 | * @param string|array|null $key |
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351 | * @return array |
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352 | */ |
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353 | protected static function explodePluckParameters($value, $key) |
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354 | { |
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355 | $value = is_string($value) ? explode('.', $value) : $value; |
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356 | |||
357 | $key = is_null($key) || is_array($key) ? $key : explode('.', $key); |
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358 | |||
359 | return [$value, $key]; |
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360 | } |
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361 | |||
362 | /** |
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363 | * Push an item onto the beginning of an array. |
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364 | * |
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365 | * @param array $array |
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366 | * @param mixed $value |
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367 | * @param mixed $key |
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368 | * @return array |
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369 | */ |
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370 | public static function prepend($array, $value, $key = null) |
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371 | { |
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372 | if (is_null($key)) { |
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373 | array_unshift($array, $value); |
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374 | } else { |
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375 | $array = [$key => $value] + $array; |
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376 | } |
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377 | |||
378 | return $array; |
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379 | } |
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380 | |||
381 | /** |
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382 | * Get a value from the array, and remove it. |
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383 | * |
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384 | * @param array $array |
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385 | * @param string $key |
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386 | * @param mixed $default |
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387 | * @return mixed |
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388 | */ |
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389 | public static function pull(&$array, $key, $default = null) |
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390 | { |
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391 | $value = static::get($array, $key, $default); |
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392 | |||
393 | static::forget($array, $key); |
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394 | |||
395 | return $value; |
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396 | } |
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397 | |||
398 | /** |
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399 | * Set an array item to a given value using "dot" notation. |
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400 | * |
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401 | * If no key is given to the method, the entire array will be replaced. |
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402 | * |
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403 | * @param array $array |
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404 | * @param string $key |
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405 | * @param mixed $value |
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406 | * @return array |
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407 | */ |
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408 | public static function set(&$array, $key, $value) |
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409 | { |
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410 | if (is_null($key)) { |
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411 | return $array = $value; |
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412 | } |
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413 | |||
414 | $keys = explode('.', $key); |
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415 | |||
416 | while (count($keys) > 1) { |
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417 | $key = array_shift($keys); |
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418 | |||
419 | // If the key doesn't exist at this depth, we will just create an empty array |
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420 | // to hold the next value, allowing us to create the arrays to hold final |
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421 | // values at the correct depth. Then we'll keep digging into the array. |
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422 | if (! isset($array[$key]) || ! is_array($array[$key])) { |
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423 | $array[$key] = []; |
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424 | } |
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425 | |||
426 | $array = &$array[$key]; |
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427 | } |
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428 | |||
429 | $array[array_shift($keys)] = $value; |
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430 | |||
431 | return $array; |
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432 | } |
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433 | |||
434 | /** |
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435 | * Shuffle the given array and return the result. |
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436 | * |
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437 | * @param array $array |
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438 | * @return array |
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439 | */ |
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440 | public static function shuffle($array) |
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441 | { |
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442 | shuffle($array); |
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443 | |||
444 | return $array; |
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445 | } |
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446 | |||
447 | /** |
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448 | * Recursively sort an array by keys and values. |
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449 | * |
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450 | * @param array $array |
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451 | * @return array |
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452 | */ |
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453 | public static function sortRecursive($array) |
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454 | { |
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455 | foreach ($array as &$value) { |
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456 | if (is_array($value)) { |
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457 | $value = static::sortRecursive($value); |
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458 | } |
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459 | } |
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460 | |||
461 | if (static::isAssoc($array)) { |
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462 | ksort($array); |
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463 | } else { |
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464 | sort($array); |
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465 | } |
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466 | |||
467 | return $array; |
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468 | } |
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469 | |||
470 | /** |
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471 | * Get an item from an array or object using "dot" notation. |
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472 | * |
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473 | * @param mixed $target |
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474 | * @param string|array $key |
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475 | * @param mixed $default |
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476 | * @return mixed |
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477 | */ |
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478 | public static function data_get($target, $key, $default = null) |
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479 | { |
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480 | if (is_null($key)) { |
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481 | return $target; |
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482 | } |
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483 | $key = is_array($key) ? $key : explode('.', $key); |
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484 | while (! is_null($segment = array_shift($key))) { |
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485 | if ($segment === '*') { |
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486 | if (! is_array($target)) { |
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487 | return $default; |
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488 | } |
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489 | $result = static::pluck($target, $key); |
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490 | return in_array('*', $key) ? static::collapse($result) : $result; |
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491 | } |
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492 | if (static::accessible($target) && static::exists($target, $segment)) { |
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493 | $target = $target[$segment]; |
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494 | } elseif (is_object($target) && isset($target->{$segment})) { |
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495 | $target = $target->{$segment}; |
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496 | } else { |
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497 | return $default; |
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498 | } |
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499 | } |
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500 | return $target; |
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501 | } |
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503 |