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. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
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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9 | class Arr |
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10 | { |
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11 | use Macroable; |
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12 | |||
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 $value |
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17 | * @return bool |
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18 | */ |
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19 | 54 | public static function accessible($value) |
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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 $value |
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30 | * @return array |
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31 | */ |
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32 | 1 | public static function add($array, $key, $value) |
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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 $array |
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45 | * @return array |
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46 | */ |
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47 | 4 | public static function collapse($array) |
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63 | |||
64 | /** |
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65 | * Cross join the given arrays, returning all possible permutations. |
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66 | * |
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67 | * @param array ...$arrays |
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68 | * @return array |
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69 | */ |
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70 | 2 | public static function crossJoin(...$arrays) |
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90 | |||
91 | /** |
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92 | * Divide an array into two arrays. One with keys and the other with values. |
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93 | * |
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94 | * @param array $array |
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95 | * @return array |
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96 | */ |
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97 | 1 | public static function divide($array) |
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101 | |||
102 | /** |
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103 | * Flatten a multi-dimensional associative array with dots. |
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104 | * |
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105 | * @param array $array |
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106 | * @param string $prepend |
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107 | * @return array |
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108 | */ |
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109 | 1 | public static function dot($array, $prepend = '') |
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123 | |||
124 | /** |
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125 | * Get all of the given array except for a specified array of keys. |
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126 | * |
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127 | * @param array $array |
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128 | * @param array|string $keys |
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129 | * @return array |
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130 | */ |
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131 | 3 | public static function except($array, $keys) |
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137 | |||
138 | /** |
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139 | * Determine if the given key exists in the provided array. |
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140 | * |
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141 | * @param \ArrayAccess|array $array |
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142 | * @param string|int $key |
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143 | * @return bool |
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144 | */ |
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145 | 51 | public static function exists($array, $key) |
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153 | |||
154 | /** |
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155 | * Return the first element in an array passing a given truth test. |
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156 | * |
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157 | * @param array $array |
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158 | * @param callable|null $callback |
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159 | * @param mixed $default |
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160 | * @return mixed |
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161 | */ |
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162 | 17 | public static function first($array, callable $callback = null, $default = null) |
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182 | |||
183 | /** |
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184 | * Return the last element in an array passing a given truth test. |
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185 | * |
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186 | * @param array $array |
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187 | * @param callable|null $callback |
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188 | * @param mixed $default |
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189 | * @return mixed |
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190 | */ |
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191 | 9 | public static function last($array, callable $callback = null, $default = null) |
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199 | |||
200 | /** |
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201 | * Flatten a multi-dimensional array into a single level. |
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202 | * |
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203 | * @param array $array |
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204 | * @param int $depth |
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205 | * @return array |
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206 | */ |
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207 | 5 | public static function flatten($array, $depth = INF) |
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225 | |||
226 | /** |
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227 | * Remove one or many array items from a given array using "dot" notation. |
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228 | * |
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229 | * @param array $array |
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230 | * @param array|string $keys |
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231 | * @return void |
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232 | */ |
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233 | 8 | public static function forget(&$array, $keys) |
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269 | |||
270 | /** |
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271 | * Get an item from an array using "dot" notation. |
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272 | * |
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273 | * @param \ArrayAccess|array $array |
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274 | * @param string $key |
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275 | * @param mixed $default |
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276 | * @return mixed |
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277 | */ |
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278 | 6 | public static function get($array, $key, $default = null) |
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306 | |||
307 | /** |
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308 | * Check if an item or items exist in an array using "dot" notation. |
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309 | * |
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310 | * @param \ArrayAccess|array $array |
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311 | * @param string|array $keys |
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312 | * @return bool |
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313 | */ |
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314 | 1 | public static function has($array, $keys) |
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340 | |||
341 | /** |
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342 | * Determines if an array is associative. |
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343 | * |
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344 | * An array is "associative" if it doesn't have sequential numerical keys beginning with zero. |
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345 | * |
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346 | * @param array $array |
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347 | * @return bool |
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348 | */ |
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349 | 2 | public static function isAssoc(array $array) |
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355 | |||
356 | /** |
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357 | * Get a subset of the items from the given array. |
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358 | * |
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359 | * @param array $array |
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360 | * @param array|string $keys |
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361 | * @return array |
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362 | */ |
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363 | 2 | public static function only($array, $keys) |
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367 | |||
368 | /** |
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369 | * Pluck an array of values from an array. |
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370 | * |
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371 | * @param array $array |
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372 | * @param string|array $value |
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373 | * @param string|array|null $key |
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374 | * @return array |
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375 | */ |
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376 | 17 | public static function pluck($array, $value, $key = null) |
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403 | |||
404 | /** |
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405 | * Explode the "value" and "key" arguments passed to "pluck". |
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406 | * |
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407 | * @param string|array $value |
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408 | * @param string|array|null $key |
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409 | * @return array |
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410 | */ |
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411 | 17 | protected static function explodePluckParameters($value, $key) |
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419 | |||
420 | /** |
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421 | * Push an item onto the beginning of an array. |
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422 | * |
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423 | * @param array $array |
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424 | * @param mixed $value |
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425 | * @param mixed $key |
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426 | * @return array |
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427 | */ |
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428 | 2 | public static function prepend($array, $value, $key = null) |
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438 | |||
439 | /** |
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440 | * Get a value from the array, and remove it. |
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441 | * |
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442 | * @param array $array |
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443 | * @param string $key |
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444 | * @param mixed $default |
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445 | * @return mixed |
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446 | */ |
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447 | 4 | public static function pull(&$array, $key, $default = null) |
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455 | |||
456 | /** |
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457 | * Get one or a specified number of random values from an array. |
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458 | * |
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459 | * @param array $array |
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460 | * @param int|null $number |
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461 | * @return mixed |
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462 | * |
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463 | * @throws \InvalidArgumentException |
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464 | */ |
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465 | 6 | public static function random($array, $number = null) |
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495 | |||
496 | /** |
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497 | * Set an array item to a given value using "dot" notation. |
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498 | * |
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499 | * If no key is given to the method, the entire array will be replaced. |
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500 | * |
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501 | * @param array $array |
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502 | * @param string $key |
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503 | * @param mixed $value |
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504 | * @return array |
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505 | */ |
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506 | 2 | public static function set(&$array, $key, $value) |
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531 | |||
532 | /** |
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533 | * Shuffle the given array and return the result. |
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534 | * |
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535 | * @param array $array |
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536 | * @param int|null $seed |
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537 | * @return array |
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538 | */ |
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539 | 2 | public static function shuffle($array, $seed = null) |
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551 | |||
552 | /** |
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553 | * Sort the array using the given callback or "dot" notation. |
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554 | * |
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555 | * @param array $array |
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556 | * @param callable|string|null $callback |
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557 | * @return array |
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558 | */ |
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559 | 1 | public static function sort($array, $callback = null) |
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563 | |||
564 | /** |
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565 | * Recursively sort an array by keys and values. |
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566 | * |
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567 | * @param array $array |
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568 | * @return array |
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569 | */ |
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570 | 1 | public static function sortRecursive($array) |
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586 | |||
587 | /** |
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588 | * Convert the array into a query string. |
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589 | * |
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590 | * @param array $array |
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591 | * @return string |
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592 | */ |
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593 | 1 | public static function query($array) |
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597 | |||
598 | /** |
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599 | * Filter the array using the given callback. |
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600 | * |
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601 | * @param array $array |
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602 | * @param callable $callback |
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603 | * @return array |
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604 | */ |
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605 | 34 | public static function where($array, callable $callback) |
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609 | |||
610 | /** |
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611 | * If the given value is not an array and not null, wrap it in one. |
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612 | * |
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613 | * @param mixed $value |
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614 | * @return array |
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615 | */ |
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616 | 7 | public static function wrap($value) |
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624 | } |
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625 |