mysqli_error Returns a string description of the last error Procedural style: stringmysqli_error objectlink Object oriented style (property) mysqli stringerror The mysqli_error function is identical to the corresponding mysqli_errno function in every way, except instead of returning an integer error code the mysqli_error function will return a string representation of the last error to occur for the database connection represented by the link parameter. If no error has occured, this function will return an empty string. A string that describes the error. An empty string if no error occurred. mysqli_connect_errno, mysqli_connect_error, mysqli_errno, mysqli_sqlstate query("SET a=1")) { printf("Errormessage: %s\n", $mysqli->error); } /* close connection */ $mysqli->close(); ?> ]]> ]]> The above examples would produce the following output: