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<?php |
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declare(strict_types=1); |
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namespace Rico\Slib; |
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abstract class ArrayUtils |
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{ |
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/** |
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* Extracts each element of a $multidimensionalArray in a single list. |
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* |
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* @param array<array> $multidimensionalArray |
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* |
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* @return array<Object> |
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*/ |
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public static function flatten(array $multidimensionalArray): array |
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{ |
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return array_map('current', $multidimensionalArray); |
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} |
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/** |
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* Inserts an element $needle at the $index position in the $haystack, conserving the order and moving other element in the way.\n |
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* Careful, keys will not be preserved. |
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* |
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* @param mixed $needle |
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* @param int $index |
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* @param array<mixed> $haystack |
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* |
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* @return array<mixed> |
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*/ |
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public static function insert($needle, int $index, array $haystack): array |
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{ |
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if (($offset = array_search($index, array_keys($haystack))) === false) { |
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$haystack[$index] = $needle; |
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ksort($haystack); |
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return $haystack; |
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} |
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return array_merge(array_slice($haystack, 0, (int) $offset), [$needle], array_slice($haystack, (int) $offset)); |
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} |
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/** |
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* Extracts all $property values from a multidimensional $multidimensionalArray. |
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* |
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* @param array<array> $multidimensionalArray |
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* @param string $property |
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* |
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* @return array<Object> |
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*/ |
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public static function pluck(array $multidimensionalArray, string $property): array |
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{ |
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return array_reduce($multidimensionalArray, function ($result, $currentArray) use ($property) { |
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if (isset($currentArray[$property])) { |
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$result[] = $currentArray[$property]; |
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} |
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return $result; |
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}, []); |
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} |
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/** |
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* Transforms multiple $similarArrays into key-valued arrays. |
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* |
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* @param array<array> $similarArrays |
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* |
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* @return mixed[] |
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*/ |
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public static function transpose(array $similarArrays): array |
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{ |
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$keyValuesArrays = []; |
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foreach ($similarArrays as $globalKey => $currentArray) { |
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if (!is_array($currentArray)) { |
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continue; |
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} |
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foreach ($currentArray as $currentKey => $currentValue) { |
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$keyValuesArrays[$currentKey][$globalKey] = $currentValue; |
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} |
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} |
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return $keyValuesArrays; |
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} |
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} |
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gui-don /
rico-lib
