|string If an array of values is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function nonPrintable(mixed $stringValue = '') { if (is_array($stringValue)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $stringValue); } $stringValue = Helpers::extractString($stringValue); return (string) preg_replace('/[\x00-\x1f]/', '', "$stringValue"); } /** * TRIM. * * @param mixed $stringValue String Value to check * Or can be an array of values * * @return array|string If an array of values is passed as the argument, then the returned result will also be an array * with the same dimensions */ public static function spaces(mixed $stringValue = ''): array|string { if (is_array($stringValue)) { return self::evaluateSingleArgumentArray([self::class, __FUNCTION__], $stringValue); } $stringValue = Helpers::extractString($stringValue); return trim(preg_replace('/ +/', ' ', trim("$stringValue", ' ')) ?? '', ' '); } }