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 $array |
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| 45 | * @return array |
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| 46 | */ |
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| 47 | 5 | public static function collapse($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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| 229 | |||
| 230 | /** |
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| 231 | * Remove one or many array items from a given array using "dot" notation. |
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| 232 | * |
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| 233 | 8 | * @param array $array |
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| 234 | * @param array|string $keys |
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| 235 | 8 | * @return void |
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| 236 | */ |
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| 237 | 8 | public static function forget(&$array, $keys) |
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| 273 | |||
| 274 | /** |
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| 275 | * Get an item from an array using "dot" notation. |
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| 276 | * |
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| 277 | * @param \ArrayAccess|array $array |
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| 278 | 6 | * @param string|int $key |
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| 279 | * @param mixed $default |
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| 280 | 6 | * @return mixed |
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| 281 | 1 | */ |
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| 282 | public static function get($array, $key, $default = null) |
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| 310 | |||
| 311 | /** |
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| 312 | * Check if an item or items exist in an array using "dot" notation. |
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| 313 | * |
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| 314 | 1 | * @param \ArrayAccess|array $array |
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| 315 | * @param string|array $keys |
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| 316 | 1 | * @return bool |
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| 317 | */ |
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| 318 | 1 | public static function has($array, $keys) |
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| 344 | |||
| 345 | /** |
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| 346 | * Determines if an array is associative. |
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| 347 | * |
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| 348 | * An array is "associative" if it doesn't have sequential numerical keys beginning with zero. |
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| 349 | 2 | * |
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| 350 | * @param array $array |
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| 351 | 2 | * @return bool |
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| 352 | */ |
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| 353 | 2 | public static function isAssoc(array $array) |
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| 359 | |||
| 360 | /** |
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| 361 | * Get a subset of the items from the given array. |
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| 362 | * |
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| 363 | 2 | * @param array $array |
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| 364 | * @param array|string $keys |
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| 365 | 2 | * @return array |
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| 366 | */ |
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| 367 | public static function only($array, $keys) |
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| 371 | |||
| 372 | /** |
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| 373 | * Pluck an array of values from an array. |
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| 374 | * |
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| 375 | * @param array $array |
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| 376 | 17 | * @param string|array $value |
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| 377 | * @param string|array|null $key |
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| 378 | 17 | * @return array |
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| 379 | */ |
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| 380 | 17 | public static function pluck($array, $value, $key = null) |
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| 407 | |||
| 408 | /** |
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| 409 | * Explode the "value" and "key" arguments passed to "pluck". |
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| 410 | * |
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| 411 | 17 | * @param string|array $value |
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| 412 | * @param string|array|null $key |
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| 413 | 17 | * @return array |
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| 414 | */ |
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| 415 | 17 | protected static function explodePluckParameters($value, $key) |
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| 423 | |||
| 424 | /** |
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| 425 | * Push an item onto the beginning of an array. |
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| 426 | * |
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| 427 | * @param array $array |
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| 428 | 2 | * @param mixed $value |
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| 429 | * @param mixed $key |
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| 430 | 2 | * @return array |
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| 431 | 2 | */ |
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| 432 | public static function prepend($array, $value, $key = null) |
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| 442 | |||
| 443 | /** |
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| 444 | * Get a value from the array, and remove it. |
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| 445 | * |
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| 446 | * @param array $array |
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| 447 | 4 | * @param string $key |
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| 448 | * @param mixed $default |
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| 449 | 4 | * @return mixed |
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| 450 | */ |
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| 451 | 4 | public static function pull(&$array, $key, $default = null) |
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| 459 | |||
| 460 | /** |
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| 461 | * Get one or a specified number of random values from an array. |
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| 462 | * |
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| 463 | * @param array $array |
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| 464 | * @param int|null $number |
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| 465 | 6 | * @return mixed |
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| 466 | * |
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| 467 | 6 | * @throws \InvalidArgumentException |
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| 468 | */ |
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| 469 | 6 | public static function random($array, $number = null) |
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| 499 | |||
| 500 | /** |
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| 501 | * Set an array item to a given value using "dot" notation. |
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| 502 | * |
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| 503 | * If no key is given to the method, the entire array will be replaced. |
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| 504 | * |
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| 505 | * @param array $array |
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| 506 | 3 | * @param string $key |
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| 507 | * @param mixed $value |
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| 508 | 3 | * @return array |
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| 509 | 1 | */ |
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| 510 | public static function set(&$array, $key, $value) |
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| 535 | |||
| 536 | /** |
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| 537 | * Shuffle the given array and return the result. |
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| 538 | * |
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| 539 | 3 | * @param array $array |
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| 540 | * @param int|null $seed |
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| 541 | 3 | * @return array |
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| 542 | 1 | */ |
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| 543 | public static function shuffle($array, $seed = null) |
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| 555 | |||
| 556 | /** |
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| 557 | * Sort the array using the given callback or "dot" notation. |
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| 558 | * |
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| 559 | 1 | * @param array $array |
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| 560 | * @param callable|string|null $callback |
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| 561 | 1 | * @return array |
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| 562 | */ |
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| 563 | public static function sort($array, $callback = null) |
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| 567 | |||
| 568 | /** |
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| 569 | * Recursively sort an array by keys and values. |
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| 570 | 1 | * |
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| 571 | * @param array $array |
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| 572 | 1 | * @return array |
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| 573 | 1 | */ |
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| 574 | 1 | public static function sortRecursive($array) |
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| 590 | |||
| 591 | /** |
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| 592 | * Convert the array into a query string. |
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| 593 | 1 | * |
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| 594 | * @param array $array |
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| 595 | 1 | * @return string |
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| 596 | */ |
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| 597 | public static function query($array) |
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| 601 | |||
| 602 | /** |
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| 603 | * Filter the array using the given callback. |
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| 604 | * |
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| 605 | 34 | * @param array $array |
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| 606 | * @param callable $callback |
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| 607 | 34 | * @return array |
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| 608 | */ |
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| 609 | public static function where($array, callable $callback) |
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| 613 | |||
| 614 | /** |
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| 615 | * If the given value is not an array and not null, wrap it in one. |
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| 616 | 6 | * |
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| 617 | * @param mixed $value |
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| 618 | 6 | * @return array |
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| 619 | 1 | */ |
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| 620 | public static function wrap($value) |
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| 628 | } |
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| 629 |