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<?php
namespace PhpOffice\PhpSpreadsheet\Calculation\TextData;
use PhpOffice\PhpSpreadsheet\Calculation\Calculation;
use PhpOffice\PhpSpreadsheet\Calculation\Functions;
class CharacterConvert
{
/**
* CHARACTER.
*
* @param mixed $character Integer Value to convert to its character representation
*/
public static function character($character): string
{
$character = Functions::flattenSingleValue($character);
if (!is_numeric($character)) {
return Functions::VALUE();
}
$character = (int) $character;
if ($character < 1 || $character > 255) {
return Functions::VALUE();
}
return iconv('UCS-4LE', 'UTF-8', pack('V', $character));
}
/**
* ASCIICODE.
*
* @param mixed $characters String character to convert to its ASCII value
*
* @return int|string A string if arguments are invalid
*/
public static function code($characters)
{
if (($characters === null) || ($characters === '')) {
return Functions::VALUE();
}
$characters = Functions::flattenSingleValue($characters);
if (is_bool($characters)) {
$characters = self::convertBooleanValue($characters);
}
$character = $characters;
if (mb_strlen($characters, 'UTF-8') > 1) {
$character = mb_substr($characters, 0, 1, 'UTF-8');
}
return self::unicodeToOrd($character);
}
private static function unicodeToOrd($character)
{
return unpack('V', iconv('UTF-8', 'UCS-4LE', $character))[1];
}
private static function convertBooleanValue($value)
{
if (Functions::getCompatibilityMode() == Functions::COMPATIBILITY_OPENOFFICE) {
return (int) $value;
}
return ($value) ? Calculation::getTRUE() : Calculation::getFALSE();
}
}