Insert, Update and Delete data in MySQL

Insert New data from PHP

        $SqlCmd = "INSERT INTO SensorStatus ". 
         "(slot_num, bay_num, sensor_status,entry_time) ". 
         "VALUES ". 
         "('$SlotNum','$BayNum1','$SensorStatus',now())"; 
        

        $retval = mysqli_query( $SqlCmd, $conn ); 

Update a data from PHP

          mysqli_query($con,"UPDATE Persons SET Age=36
          WHERE FirstName='Peter' AND LastName='Griffin'");

Delete a Row from Table

mysqli_query($con,"DELETE FROM Persons WHERE LastName='Griffin'")