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<?php |
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/** |
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* This file is part of GameQ. |
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* |
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* GameQ is free software; you can redistribute it and/or modify |
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* it under the terms of the GNU Lesser General Public License as published by |
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* the Free Software Foundation; either version 3 of the License, or |
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* (at your option) any later version. |
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* |
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* GameQ is distributed in the hope that it will be useful, |
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* but WITHOUT ANY WARRANTY; without even the implied warranty of |
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
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* GNU Lesser General Public License for more details. |
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* |
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* You should have received a copy of the GNU Lesser General Public License |
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* along with this program. If not, see <http://www.gnu.org/licenses/>. |
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*/ |
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namespace GameQ\Helpers; |
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use Closure; |
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use RecursiveArrayIterator; |
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use RecursiveIteratorIterator; |
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/** |
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* This helper contains functions to work with arrays. |
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* |
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* @package GameQ\Helpers |
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*/ |
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class Arr |
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{ |
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use Arr\Recursively; |
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/** |
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* This helper does process each element of the provided array recursively. |
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* It does so allowing for modifications to the provided array and without |
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* using actual recursive calls. |
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* |
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* @param array $data |
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* @param Closure $callback |
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* |
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* @return array |
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*/ |
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public static function recursively(array $data, Closure $callback) |
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{ |
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/* Initialize the RecursiveArrayIterator for the provided data */ |
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$arrayIterator = new RecursiveArrayIterator($data); |
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/* Configure the Iterator for the RecursiveIterator */ |
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$recursiveIterator = new RecursiveIteratorIterator($arrayIterator); |
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/* Traverse the provided data */ |
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foreach ($recursiveIterator as $key => $value) { |
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/* Get the current sub iterator with Type hinting */ |
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/** @var RecursiveArrayIterator */ |
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$subIterator = $recursiveIterator->getSubIterator(); |
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/* Wrap the implementation to handle PHP < 8.1 behaviour */ |
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static::handleArrayIteratorCopyOrReference( |
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$data, |
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$recursiveIterator, |
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$subIterator, |
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function () use ($callback, &$value, $key, $subIterator) { |
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/* Execute the callback */ |
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$callback($value, $key, $subIterator); |
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/* Update the modified value */ |
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$subIterator->offsetSet($key, $value); |
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} |
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); |
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} |
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/* Return the processed data */ |
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return static::getArrayIteratorCopyOrReference($data, $arrayIterator); |
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} |
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/** |
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* This helper is intended to hash the provided array's values |
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* and return it back as key => hash. |
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* |
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* @param array $array |
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* @return array<string|int, string> |
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*/ |
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public static function hashes(array $array) |
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{ |
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$hashes = []; |
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/* Process the provided array */ |
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foreach ($array as $key => $value) { |
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/* Serialze and hash each value individually */ |
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$hashes[$key] = md5(serialize($value)); |
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} |
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/* Return array containing the hashes */ |
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return $hashes; |
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} |
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/** |
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* This helper is intended to set a value inside the provided array. |
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* |
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* @param array &$array |
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* @param array $path |
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* @param mixed $value |
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* @return array |
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*/ |
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public static function set(array &$array, array $path, $value) |
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{ |
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$current = &$array; |
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/* Process the path until the last element */ |
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foreach ($path as $i => $element) { |
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/* Remove the element from the path */ |
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unset($path[$i]); |
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/* Create missing key */ |
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if (! isset($current[$element])) { |
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$current[$element] = []; |
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} |
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/* Set current to a reference of next */ |
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$current = &$current[$element]; |
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} |
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/* Finally set the value using the last key */ |
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$current = $value; |
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/* Return the current, modified array (level) */ |
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return $array; |
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} |
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/** |
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* This helper method is intended to shift the provided arguments to the left. |
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* |
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* **Example:** foo, bar, baz becomes bar, baz, baz |
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* |
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* @param mixed &...$args |
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* @return void |
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*/ |
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public static function shift(&...$args) |
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{ |
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/* Get the array keys to ensure numeric index */ |
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$keys = array_keys($args); |
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/* Iterate the provided arguments keys in order */ |
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foreach ($keys as $i => $key) { |
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/* Process until the last argument */ |
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if ($i < count($keys) - 1) { |
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/* Shift next into current */ |
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$args[$key] = $args[$keys[$i + 1]]; |
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} |
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} |
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} |
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} |
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Austinb /
GameQ
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