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<?php declare(strict_types=1); |
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namespace AlecRabbit\Helpers\Classes; |
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use const AlecRabbit\Helpers\Constants\EMPTY_ELEMENTS; |
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/** |
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* Class ColumnizeArray |
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* |
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* @internal |
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*/ |
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class ColumnizeArray |
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{ |
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/** |
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* @param array $arr |
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* @param int $columns |
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* @param callable|null $preprocessor |
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* @param int $pad |
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* @return array |
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*/ |
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public static function process( |
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array $arr, |
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int $columns = 10, |
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?callable $preprocessor = null, |
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int $pad = STR_PAD_RIGHT |
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): array { |
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$result = $tmp = []; |
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$maxLength = static::getMaxLength($arr, $preprocessor); |
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$rowEmpty = true; |
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foreach ($arr as $element) { |
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$tmp[] = \str_pad((string)$element, $maxLength, ' ', $pad); |
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$rowEmpty = $rowEmpty && \in_array($element, EMPTY_ELEMENTS, true); |
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if (\count($tmp) >= $columns) { |
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[$result, $rowEmpty, $tmp] = static::updateResult($result, $rowEmpty, $tmp); |
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} |
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} |
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if (!empty($tmp)) { |
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[$result, $rowEmpty, $tmp] = static::updateResult($result, $rowEmpty, $tmp); |
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} |
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return $result; |
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} |
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/** |
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* @param array $data |
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* @param callable|null $preprocessor |
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* @return int |
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*/ |
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protected static function getMaxLength(array &$data, ?callable $preprocessor): int |
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{ |
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$maxLength = 0; |
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foreach ($data as $key => &$element) { |
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if (\is_array($element)) { |
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throw new \RuntimeException('Passed array is multidimensional.'); |
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} |
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if ($preprocessor instanceof \Closure) { |
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$preprocessor($element, $key); |
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} |
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$len = \strlen($element = (string)$element); |
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if ($maxLength < $len) { |
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$maxLength = $len; |
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} |
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} |
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return $maxLength; |
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} |
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/** |
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* @param array $result |
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* @param bool $rowEmpty |
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* @param array $tmp |
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* @return array |
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*/ |
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protected static function updateResult(array $result, bool $rowEmpty, array $tmp): array |
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{ |
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$result[] = \implode($rowEmpty ? '' : ' ', $tmp); |
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$rowEmpty = true; |
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$tmp = []; |
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return [$result, $rowEmpty, $tmp]; |
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} |
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} |
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alecrabbit /
php-helpers
