original_string: public function isValidEmail(string $email): bool
      {
          return filter_var(filter_var($email, FILTER_SANITIZE_EMAIL), FILTER_VALIDATE_EMAIL) !== false;
      }
code: public function isValidEmail(string $email): bool
      {
          return filter_var(filter_var($email, FILTER_SANITIZE_EMAIL), FILTER_VALIDATE_EMAIL) !== false;
      }
code_tokens: public function isValidEmail ( string $ email ) : bool { return filter_var ( filter_var ( $ email , FILTER_SANITIZE_EMAIL ) , FILTER_VALIDATE_EMAIL ) !== false ; }
docstring: Validate a email address.
  
  @param string $email The email address to validate
  
  @return bool
docstring_tokens: Validate a email address .