[siteorigin_widget class=”Thim_Heading_Widget”][/siteorigin_widget] The following are the possible callbacks – SELECTING single data from MySQL database. “Success” – User inputs and database value corresponds. “Incorrect” – User password is incorrect. “Unknown” – Username not available to the database. “Failed” – Failed to connect to the database. “Error” – User authentication is not valid. <?php //Variables for […]