App\services\Util::__construct PHP Method

    public function __construct()
    {
        defined('UTF8_BOM') or define('UTF8_BOM', chr(0xef) . chr(0xbb) . chr(0xbf));
        defined('UTF16_LITTLE_ENDIAN_BOM') or define('UTF16_LITTLE_ENDIAN_BOM', chr(0xff) . chr(0xfe));
        defined('UTF16_BIG_ENDIAN_BOM') or define('UTF16_BIG_ENDIAN_BOM', chr(0xfe) . chr(0xff));
        defined('UTF32_LITTLE_ENDIAN_BOM') or define('UTF32_LITTLE_ENDIAN_BOM', chr(0xff) . chr(0xfe) . chr(0x0) . chr(0x0));
        defined('UTF32_BIG_ENDIAN_BOM') or define('UTF32_BIG_ENDIAN_BOM', chr(0x0) . chr(0x0) . chr(0xfe) . chr(0xff));
    }