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<?php |
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/** |
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* This file is part of the League.csv library |
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* |
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* @license http://opensource.org/licenses/MIT |
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* @link https://github.com/thephpleague/csv/ |
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* @version 9.0.0 |
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* @package League.csv |
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* |
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* For the full copyright and license information, please view the LICENSE |
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* file that was distributed with this source code. |
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*/ |
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declare(strict_types=1); |
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namespace League\Csv; |
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use Iterator; |
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use League\Csv\Exception\InvalidArgumentException; |
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use Traversable; |
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/** |
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* A class to encode your CSV records collection |
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* |
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* @package League.csv |
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* @since 9.0.0 |
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* @author Ignace Nyamagana Butera <[email protected]> |
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*/ |
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class Encoder |
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{ |
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use ValidatorTrait; |
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/** |
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* The records input encoding charset |
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* |
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* @var string |
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*/ |
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protected $input_encoding = 'UTF-8'; |
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/** |
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* The records output encoding charset |
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* |
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* @var string |
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*/ |
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protected $output_encoding = 'UTF-8'; |
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/** |
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* Enable using the class as a formatter for the {@link Writer} |
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* |
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* @see encodeOne |
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* |
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* @param array $record CSV record |
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* |
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* @return string[] |
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*/ |
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public function __invoke(array $record): array |
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{ |
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return $this->encodeOne($record); |
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} |
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/** |
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* Encode a CSV record |
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* |
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* @param array $record CSV record |
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* |
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* @return string[] |
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*/ |
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public function encodeOne(array $record): array |
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{ |
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if ($this->output_encoding !== $this->input_encoding) { |
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array_walk($record, [$this, 'encodeField']); |
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} |
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return $record; |
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} |
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/** |
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* Walker method to convert the offset and the value of a CSV record field |
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* |
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* @param string|null &$value |
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* @param string|int &$offset |
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*/ |
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protected function encodeField(&$value, &$offset) |
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{ |
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if (null !== $value) { |
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$value = mb_convert_encoding((string) $value, $this->output_encoding, $this->input_encoding); |
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} |
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if (!is_int($offset)) { |
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$offset = mb_convert_encoding((string) $offset, $this->output_encoding, $this->input_encoding); |
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} |
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} |
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/** |
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* Convert Csv file into UTF-8 |
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* |
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* @param array|Traversable $records the CSV records collection |
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* |
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* @return array|Iterator |
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*/ |
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public function encodeAll($records) |
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{ |
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$records = $this->filterIterable($records, __METHOD__); |
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if ($this->output_encoding === $this->input_encoding) { |
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return $records; |
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} |
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$convert = function (array $record): array { |
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array_walk($record, [$this, 'encodeField']); |
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return $record; |
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}; |
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return is_array($records) ? array_map($convert, $records) : new MapIterator($records, $convert); |
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} |
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/** |
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* Sets the records input encoding charset |
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* |
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* @param string $encoding |
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* |
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* @return static |
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*/ |
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public function inputEncoding(string $encoding): self |
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{ |
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$encoding = $this->filterEncoding($encoding); |
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if ($encoding === $this->input_encoding) { |
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return $this; |
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} |
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$clone = clone $this; |
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$clone->input_encoding = $encoding; |
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return $clone; |
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} |
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/** |
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* Filter encoding charset |
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* |
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* @param string $encoding |
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* |
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* @throws InvalidArgumentException if the charset is malformed |
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* |
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* @return string |
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*/ |
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protected function filterEncoding(string $encoding) |
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{ |
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$encoding = strtoupper(str_replace('_', '-', $encoding)); |
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$test = filter_var($encoding, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH); |
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if ($test === $encoding && $encoding != '') { |
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return $encoding; |
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} |
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throw new InvalidArgumentException('Invalid Character Error'); |
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} |
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/** |
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* Sets the records output encoding charset |
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* |
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* @param string $encoding |
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* |
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* @return static |
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*/ |
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public function outputEncoding(string $encoding): self |
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{ |
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$encoding = $this->filterEncoding($encoding); |
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if ($encoding === $this->output_encoding) { |
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return $this; |
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} |
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$clone = clone $this; |
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$clone->output_encoding = $encoding; |
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return $clone; |
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} |
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} |
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