Total Complexity | 66 |
Total Lines | 365 |
Duplicated Lines | 0 % |
Changes | 3 | ||
Bugs | 0 | Features | 0 |
Complex classes like IteratorDot 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 IteratorDot, and based on these observations, apply Extract Interface, too.
1 | <?php |
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23 | class IteratorDot implements Countable, IteratorAggregate |
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24 | { |
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25 | /** |
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26 | * The stored items |
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27 | * |
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28 | * @var array |
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29 | */ |
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30 | protected $items = []; |
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31 | |||
32 | /** |
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33 | * elements |
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34 | * |
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35 | */ |
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36 | protected $elements; |
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37 | |||
38 | /** |
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39 | * Create a new Dot instance |
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40 | * |
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41 | * @param mixed $items |
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42 | */ |
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43 | public function __construct($items = []) |
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44 | { |
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45 | $this->elements = $this->getArrayItems($items); |
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46 | } |
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47 | |||
48 | /** |
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49 | * Set a given key / value pair or pairs |
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50 | * if the key doesn't exist already |
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51 | * |
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52 | * @param array|int|string $keys |
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53 | * @param mixed $value |
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54 | */ |
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55 | public function add($keys, $value = null) |
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56 | { |
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57 | if (is_array($keys)) { |
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58 | foreach ($keys as $key => $value) { |
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59 | $this->add($key, $value); |
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60 | } |
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61 | } elseif (is_null($this->get($keys))) { |
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62 | $this->set($keys, $value); |
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63 | } |
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64 | } |
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65 | |||
66 | /** |
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67 | * Return all the stored items |
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68 | * |
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69 | * @return array |
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70 | */ |
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71 | public function all() |
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72 | { |
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73 | return $this->elements; |
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74 | } |
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75 | |||
76 | /** |
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77 | * Delete the contents of a given key or keys |
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78 | * |
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79 | * @param array|int|string|null $keys |
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80 | */ |
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81 | public function clear($keys = null) |
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82 | { |
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83 | if (is_null($keys)) { |
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84 | $this->elements = []; |
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85 | return; |
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86 | } |
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87 | $keys = (array)$keys; |
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88 | foreach ($keys as $key) { |
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89 | $this->set($key, []); |
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90 | } |
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91 | } |
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92 | |||
93 | /** |
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94 | * Delete the given key or keys |
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95 | * |
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96 | * @param array|int|string $keys |
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97 | */ |
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98 | public function delete($keys) |
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99 | { |
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100 | $keys = (array)$keys; |
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101 | foreach ($keys as $key) { |
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102 | if ($this->exists($this->elements, $key)) { |
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103 | unset($this->elements[$key]); |
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104 | continue; |
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105 | } |
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106 | $items = &$this->elements; |
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107 | $segments = explode('.', $key); |
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108 | $lastSegment = array_pop($segments); |
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109 | foreach ($segments as $segment) { |
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110 | if (!isset($items[$segment]) || !is_array($items[$segment])) { |
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111 | continue 2; |
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112 | } |
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113 | $items = &$items[$segment]; |
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114 | } |
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115 | unset($items[$lastSegment]); |
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116 | } |
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117 | } |
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118 | |||
119 | /** |
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120 | * Checks if the given key exists in the provided array. |
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121 | * |
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122 | * @param array $array Array to validate |
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123 | * @param int|string $key The key to look for |
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124 | * |
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125 | * @return bool |
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126 | */ |
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127 | protected function exists($array, $key) |
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128 | { |
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129 | return array_key_exists($key, $array); |
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130 | } |
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131 | |||
132 | /** |
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133 | * Flatten an array with the given character as a key delimiter |
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134 | * |
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135 | * @param string $delimiter |
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136 | * @param array|null $items |
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137 | * @param string $prepend |
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138 | * @return array |
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139 | */ |
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140 | public function flatten($delimiter = '.', $items = null, $prepend = '') |
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141 | { |
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142 | $flatten = []; |
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143 | if (is_null($items)) { |
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144 | $items = $this->elements; |
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145 | } |
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146 | foreach ($items as $key => $value) { |
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147 | if (is_array($value) && !empty($value)) { |
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148 | $flatten = array_merge( |
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149 | $flatten, |
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150 | $this->flatten($delimiter, $value, $prepend . $key . $delimiter) |
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151 | ); |
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152 | } else { |
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153 | $flatten[$prepend . $key] = $value; |
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154 | } |
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155 | } |
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156 | return $flatten; |
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157 | } |
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158 | |||
159 | /** |
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160 | * Return the value of a given key |
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161 | * |
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162 | * @param int|string|null $key |
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163 | * @param mixed $default |
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164 | * @return mixed |
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165 | */ |
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166 | public function get($key = null, $default = null) |
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167 | { |
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168 | if (is_null($key)) { |
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169 | return $this->elements; |
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170 | } |
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171 | if ($this->exists($this->elements, $key)) { |
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172 | return $this->elements[$key]; |
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173 | } |
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174 | if (false === strpos($key, '.')) { |
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175 | return $default; |
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176 | } |
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177 | $items = $this->elements; |
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178 | foreach (explode('.', $key) as $segment) { |
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179 | if (!is_array($items) || !$this->exists($items, $segment)) { |
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180 | return $default; |
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181 | } |
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182 | $items = &$items[$segment]; |
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183 | } |
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184 | return $items; |
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185 | } |
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186 | |||
187 | /** |
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188 | * Return the given items as an array |
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189 | * |
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190 | * @param mixed $items |
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191 | * @return array |
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192 | */ |
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193 | protected function getArrayItems($items) |
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194 | { |
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195 | if (is_array($items)) { |
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196 | return $items; |
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197 | } elseif ($items instanceof self) { |
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198 | return $items->all(); |
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199 | } |
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200 | return (array)$items; |
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201 | } |
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202 | |||
203 | /** |
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204 | * Check if a given key or keys exists |
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205 | * |
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206 | * @param array|int|string $keys |
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207 | * @return bool |
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208 | */ |
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209 | public function has($keys) |
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210 | { |
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211 | $keys = (array)$keys; |
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212 | if ( empty($this->elements) || $keys === []) { |
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213 | return false; |
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214 | } |
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215 | foreach ($keys as $key) { |
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216 | $items = $this->elements; |
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217 | if ($this->exists($items, $key)) { |
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218 | continue; |
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219 | } |
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220 | foreach (explode('.', $key) as $segment) { |
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221 | if (!is_array($items) || !$this->exists($items, $segment)) { |
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222 | return false; |
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223 | } |
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224 | $items = $items[$segment]; |
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225 | } |
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226 | } |
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227 | return true; |
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228 | } |
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229 | |||
230 | /** |
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231 | * Check if a given key or keys are empty |
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232 | * |
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233 | * @param array|int|string|null $keys |
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234 | * @return bool |
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235 | */ |
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236 | public function isEmpty($keys = null) |
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237 | { |
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238 | if (is_null($keys)) { |
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239 | return empty($this->elements); |
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240 | } |
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241 | $keys = (array)$keys; |
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242 | foreach ($keys as $key) { |
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243 | if (!empty($this->get($key))) { |
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244 | return false; |
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245 | } |
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246 | } |
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247 | return true; |
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248 | } |
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249 | |||
250 | /** |
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251 | * Merge a given array or a Dot object with the given key |
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252 | * or with the whole Dot object |
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253 | * |
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254 | * @param array|string|self $key |
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255 | * @param array $value |
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256 | */ |
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257 | public function merge($key, $value = null) |
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258 | { |
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259 | if (is_array($key)) { |
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260 | $this->elements = array_merge($this->elements, $key); |
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261 | } elseif (is_string($key)) { |
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262 | $items = (array)$this->get($key); |
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263 | $value = array_merge($items, $this->getArrayItems($value)); |
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264 | $this->set($key, $value); |
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265 | } elseif ($key instanceof self) { |
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266 | $this->elements = array_merge($this->elements, $key->all()); |
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267 | } |
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268 | } |
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269 | |||
270 | /** |
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271 | * Return the value of a given key and |
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272 | * delete the key |
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273 | * |
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274 | * @param int|string|null $key |
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275 | * @param mixed $default |
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276 | * @return mixed |
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277 | */ |
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278 | public function pull($key = null, $default = null) |
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279 | { |
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280 | if (is_null($key)) { |
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281 | $value = $this->all(); |
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282 | $this->clear(); |
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283 | return $value; |
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284 | } |
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285 | $value = $this->get($key, $default); |
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286 | $this->delete($key); |
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287 | return $value; |
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288 | } |
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289 | |||
290 | /** |
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291 | * Push a given value to the end of the array |
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292 | * in a given key |
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293 | * |
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294 | * @param mixed $key |
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295 | * @param mixed $value |
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296 | */ |
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297 | public function push($key, $value = null) |
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298 | { |
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299 | if (is_null($value)) { |
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300 | $this->elements[] = $key; |
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301 | return; |
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302 | } |
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303 | $items = $this->get($key); |
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304 | if (is_array($items) || is_null($items)) { |
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305 | $items[] = $value; |
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306 | $this->set($key, $items); |
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307 | } |
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308 | } |
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309 | |||
310 | /** |
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311 | * Set a given key / value pair or pairs |
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312 | * |
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313 | * @param array|int|string $keys |
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314 | * @param mixed $value |
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315 | */ |
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316 | public function set($keys, $value = null) |
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317 | { |
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318 | if (is_array($keys)) { |
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319 | foreach ($keys as $key => $value) { |
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320 | $this->set($key, $value); |
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321 | } |
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322 | return; |
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323 | } |
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324 | $items = &$this->elements; |
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325 | foreach (explode('.', $keys) as $key) { |
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326 | if (!isset($items[$key]) || !is_array($items[$key])) { |
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327 | $items[$key] = []; |
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328 | } |
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329 | $items = &$items[$key]; |
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330 | } |
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331 | $items = $value; |
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332 | } |
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333 | |||
334 | /** |
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335 | * Replace all items with a given array |
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336 | * |
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337 | * @param mixed $items |
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338 | */ |
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339 | public function setArray($items) |
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340 | { |
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341 | $this->elements = $this->getArrayItems($items); |
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342 | } |
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343 | |||
344 | /** |
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345 | * Replace all items with a given array as a reference |
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346 | * |
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347 | * @param array $items |
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348 | */ |
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349 | public function setReference(array &$items) |
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350 | { |
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351 | $this->elements = &$items; |
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352 | } |
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353 | |||
354 | /** |
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355 | * Return the value of a given key or all the values as JSON |
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356 | * |
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357 | * @param mixed $key |
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358 | * @param int $options |
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359 | * @return string |
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360 | */ |
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361 | public function toJson($key = null, $options = 0) |
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368 | } |
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369 | |||
370 | |||
371 | public function count($key = null) |
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374 | } |
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375 | /* |
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376 | * -------------------------------------------------------------- |
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377 | * IteratorAggregate interface |
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378 | * -------------------------------------------------------------- |
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379 | */ |
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380 | /** |
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381 | * Get an iterator for the stored items |
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382 | * |
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383 | * @return \ArrayIterator |
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384 | */ |
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385 | public function getIterator() |
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386 | { |
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387 | return new ArrayIterator($this->elements); |
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388 | } |
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389 | } |