    public static function getErrorMessage ($pcreConstant) {
        $definedConstants = get_defined_constants (true);
        $pcreConstantsByErrorCodes = array_flip ($definedConstants['pcre']);
        return isset ($pcreConstantsByErrorCodes[$pcreConstant]) ?
            $pcreConstantsByErrorCodes[$pcreConstant] : '';
    }
The product receives input or data, but it does
        not validate or incorrectly validates that the input has the
        properties that are required to process the data safely and
        correctly.