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<?php
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namespace PhpOffice\PhpSpreadsheet\Calculation\TextData;
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use PhpOffice\PhpSpreadsheet\Calculation\ArrayEnabled;
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use PhpOffice\PhpSpreadsheet\Calculation\Exception as CalcExp;
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use PhpOffice\PhpSpreadsheet\Calculation\Functions;
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use PhpOffice\PhpSpreadsheet\Calculation\Information\ExcelError;
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class CharacterConvert
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{
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use ArrayEnabled;
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/**
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* CHAR.
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*
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* @param mixed $character Integer Value to convert to its character representation
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* Or can be an array of values
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*
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* @return array|string The character string
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* If an array of values is passed as the argument, then the returned result will also be an array
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* with the same dimensions
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*/
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public static function character(mixed $character): array|string
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{
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if (is_array($character)) {
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return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $character);
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}
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try {
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$character = Helpers::validateInt($character, true);
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} catch (CalcExp $e) {
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return $e->getMessage();
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}
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$min = Functions::getCompatibilityMode() === Functions::COMPATIBILITY_OPENOFFICE ? 0 : 1;
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if ($character < $min || $character > 255) {
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return ExcelError::VALUE();
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}
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$result = iconv('UCS-4LE', 'UTF-8', pack('V', $character));
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return ($result === false) ? '' : $result;
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}
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/**
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* CODE.
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*
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* @param mixed $characters String character to convert to its ASCII value
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* Or can be an array of values
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*
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* @return array|int|string A string if arguments are invalid
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* If an array of values is passed as the argument, then the returned result will also be an array
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* with the same dimensions
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*/
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public static function code(mixed $characters): array|string|int
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{
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if (is_array($characters)) {
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return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $characters);
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}
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try {
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$characters = Helpers::extractString($characters, true);
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} catch (CalcExp $e) {
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return $e->getMessage();
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}
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if ($characters === '') {
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return ExcelError::VALUE();
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}
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$character = $characters;
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if (mb_strlen($characters, 'UTF-8') > 1) {
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$character = mb_substr($characters, 0, 1, 'UTF-8');
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}
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return self::unicodeToOrd($character);
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}
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private static function unicodeToOrd(string $character): int
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{
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$retVal = 0;
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$iconv = iconv('UTF-8', 'UCS-4LE', $character);
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if ($iconv !== false) {
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$result = unpack('V', $iconv);
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if (is_array($result) && isset($result[1])) {
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$retVal = $result[1];
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}
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}
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return $retVal;
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}
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}
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