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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 8.0.0 |
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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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namespace League\Csv\Config; |
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use DomDocument; |
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use InvalidArgumentException; |
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use Iterator; |
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use League\Csv\AbstractCsv; |
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use League\Csv\Modifier\MapIterator; |
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use SplFileObject; |
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/** |
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* A trait to output CSV |
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* |
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* @package League.csv |
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* @since 6.3.0 |
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* |
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*/ |
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trait Output |
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{ |
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/** |
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* Charset Encoding for the CSV |
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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 Input file BOM character |
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* @var string |
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*/ |
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protected $input_bom; |
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/** |
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* The Output file BOM character |
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* @var string |
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*/ |
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protected $output_bom = ''; |
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/** |
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* Sets the CSV encoding charset |
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* |
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* @param string $str |
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* |
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* @return static |
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*/ |
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public function setInputEncoding($str) |
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{ |
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$str = str_replace('_', '-', $str); |
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$str = filter_var($str, FILTER_SANITIZE_STRING, ['flags' => FILTER_FLAG_STRIP_LOW | FILTER_FLAG_STRIP_HIGH]); |
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if (empty($str)) { |
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throw new InvalidArgumentException('you should use a valid charset'); |
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} |
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$this->input_encoding = strtoupper($str); |
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return $this; |
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} |
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/** |
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* Sets the CSV encoding charset |
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* |
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* DEPRECATION WARNING! This method will be removed in the next major point release |
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* |
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* @deprecated deprecated since version 4.1 |
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* |
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* @param string $str |
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* |
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* @return static |
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*/ |
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public function setEncodingFrom($str) |
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{ |
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return $this->setInputEncoding($str); |
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} |
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/** |
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* Gets the source CSV encoding charset |
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* |
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* @return string |
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*/ |
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public function getInputEncoding() |
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{ |
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return $this->input_encoding; |
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} |
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/** |
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* Gets the source CSV encoding charset |
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* |
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* DEPRECATION WARNING! This method will be removed in the next major point release |
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* |
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* @deprecated deprecated since version 4.1 |
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* |
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* @return string |
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*/ |
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public function getEncodingFrom() |
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{ |
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return $this->input_encoding; |
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} |
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/** |
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* Sets the BOM sequence to prepend the CSV on output |
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* |
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* @param string $str The BOM sequence |
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* |
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* @return static |
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*/ |
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public function setOutputBOM($str) |
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{ |
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if (empty($str)) { |
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$this->output_bom = ''; |
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return $this; |
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} |
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$this->output_bom = (string) $str; |
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return $this; |
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} |
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/** |
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* Returns the BOM sequence in use on Output methods |
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* |
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* @return string |
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*/ |
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public function getOutputBOM() |
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{ |
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return $this->output_bom; |
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} |
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/** |
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* Returns the BOM sequence of the given CSV |
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* |
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* @return string |
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*/ |
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public function getInputBOM() |
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{ |
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if (null === $this->input_bom) { |
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$bom = [ |
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AbstractCsv::BOM_UTF32_BE, AbstractCsv::BOM_UTF32_LE, |
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AbstractCsv::BOM_UTF16_BE, AbstractCsv::BOM_UTF16_LE, AbstractCsv::BOM_UTF8, |
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]; |
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$csv = $this->getIterator(); |
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$csv->setFlags(SplFileObject::READ_CSV); |
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$csv->rewind(); |
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$line = $csv->fgets(); |
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$res = array_filter($bom, function ($sequence) use ($line) { |
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return strpos($line, $sequence) === 0; |
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}); |
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$this->input_bom = (string) array_shift($res); |
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} |
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return $this->input_bom; |
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} |
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/** |
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* @inheritdoc |
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*/ |
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abstract public function getIterator(); |
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/** |
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* Outputs all data on the CSV file |
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* |
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* @param string $filename CSV downloaded name if present adds extra headers |
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* |
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* @return int Returns the number of characters read from the handle |
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* and passed through to the output. |
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*/ |
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public function output($filename = null) |
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{ |
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if (null !== $filename) { |
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$filename = filter_var($filename, FILTER_SANITIZE_STRING, FILTER_FLAG_STRIP_LOW); |
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header('Content-Type: application/octet-stream'); |
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header('Content-Transfer-Encoding: binary'); |
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header("Content-Disposition: attachment; filename=\"$filename\""); |
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} |
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return $this->fpassthru(); |
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} |
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/** |
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* Outputs all data from the CSV |
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* |
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* @return int Returns the number of characters read from the handle |
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* and passed through to the output. |
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*/ |
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protected function fpassthru() |
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{ |
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$bom = ''; |
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$input_bom = $this->getInputBOM(); |
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if ($this->output_bom && $input_bom != $this->output_bom) { |
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$bom = $this->output_bom; |
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} |
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$csv = $this->getIterator(); |
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$csv->setFlags(SplFileObject::READ_CSV); |
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$csv->rewind(); |
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if (!empty($bom)) { |
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$csv->fseek(mb_strlen($input_bom)); |
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} |
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echo $bom; |
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$res = $csv->fpassthru(); |
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return $res + strlen($bom); |
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} |
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/** |
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* Retrieves the CSV content |
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* |
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* @return string |
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*/ |
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public function __toString() |
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{ |
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ob_start(); |
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$this->fpassthru(); |
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return ob_get_clean(); |
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} |
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/** |
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* @inheritdoc |
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*/ |
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public function jsonSerialize() |
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{ |
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return iterator_to_array($this->convertToUtf8($this->getQueryIterator()), false); |
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} |
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/** |
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* Returns the CSV Iterator |
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* |
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* @return Iterator |
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*/ |
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abstract protected function getQueryIterator(); |
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/** |
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* Convert Csv file into UTF-8 |
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* |
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* @param Iterator $iterator |
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* |
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* @return Iterator |
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*/ |
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protected function convertToUtf8(Iterator $iterator) |
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{ |
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if (stripos($this->input_encoding, 'UTF-8') !== false) { |
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return $iterator; |
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} |
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$convertCell = function ($value) { |
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return mb_convert_encoding($value, 'UTF-8', $this->input_encoding); |
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}; |
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$convertRow = function (array $row) use ($convertCell) { |
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return array_map($convertCell, $row); |
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}; |
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return new MapIterator($iterator, $convertRow); |
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} |
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/** |
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* Returns a HTML table representation of the CSV Table |
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* |
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* @param string $class_attr optional classname |
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* |
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* @return string |
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*/ |
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public function toHTML($class_attr = 'table-csv-data') |
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{ |
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$doc = $this->toXML('table', 'tr', 'td'); |
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$doc->documentElement->setAttribute('class', $class_attr); |
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return $doc->saveHTML($doc->documentElement); |
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} |
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/** |
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* Transforms a CSV into a XML |
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* |
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* @param string $root_name XML root node name |
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* @param string $row_name XML row node name |
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* @param string $cell_name XML cell node name |
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* |
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* @return DomDocument |
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*/ |
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public function toXML($root_name = 'csv', $row_name = 'row', $cell_name = 'cell') |
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{ |
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$doc = new DomDocument('1.0', 'UTF-8'); |
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$root = $doc->createElement($root_name); |
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foreach ($this->convertToUtf8($this->getQueryIterator()) as $row) { |
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$rowElement = $doc->createElement($row_name); |
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array_walk($row, function ($value) use (&$rowElement, $doc, $cell_name) { |
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$content = $doc->createTextNode($value); |
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$cell = $doc->createElement($cell_name); |
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$cell->appendChild($content); |
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$rowElement->appendChild($cell); |
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}); |
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$root->appendChild($rowElement); |
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} |
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$doc->appendChild($root); |
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return $doc; |
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} |
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} |
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