Question

Ok help..my registration page worked on the local server but its now saying that the two mysql lines are not valid when its online..why does it change when it goes online? the code pasted is all thats relevant. for some reason it doesnt like the transaction..and the email check mysql bit

include 'Connect.php'; //Connects to database
//When form is submit:-
if(isset($_POST['submit']))
{         
                        // On submit, retrieve table values for php.                 
                        $Firstname = mysql_real_escape_string($_POST['firstname']);
                        $Surname = mysql_real_escape_string($_POST['surname']);
                        $Password = mysql_real_escape_string($_POST['password']); 
                        $PasswordCheck = mysql_real_escape_string($_POST['passwordcheck']); 
                        $Email = mysql_real_escape_string($_POST['email']); 
                        $EmailCheck = mysql_real_escape_string($_POST['emailcheck']); 

                    //CHECKS. 
                    //Check username is available by retrieving any same values from the DB table.          
                    $CheckEmailAvailable = mysql_query("SELECT * FROM 'user_details' WHERE Email = '$Email'");
                    echo $CheckEmailAvailable;
                    // $result = mysql_query("SELECT * FROM $tbl WHERE Email='$email' and LoginPassword='$password'");
                    $Results = mysql_fetch_array($CheckEmailAvailable);

                    //If Username field is blank.
                    if($Email == null )
                    {               
                        echo "You must enter an email address.";
                        $url = htmlspecialchars($_SERVER['HTTP_REFERER']);
                        echo "<br/><br/>";
                        echo "<a href='$url'>Click Here To Return</a>";
                        die();                      
                    }

                    //If RESULTS is any value other than NULL, die.
                    if($Results != null )
                    {               
                        echo "Email already taken. Please try another.";
                        $url = htmlspecialchars($_SERVER['HTTP_REFERER']);
                        echo "<br/><br/>";
                        echo "<a href='$url'>Click Here To Return</a>";
                        die();                  
                    }

                    //If Password and PasswordCheck fields in reg do not match, die.
                    if($Password != $PasswordCheck) 
                    {
                        echo "The passwords you have entered do not match. Please try again.";
                        $url = htmlspecialchars($_SERVER['HTTP_REFERER']);
                        echo "<br/><br/>";
                        echo "<a href='$url'>Click Here To Return</a>";
                        die();
                    }

                    //If Password field is NULL (i.e. blank) die.
                    if($Password == Null)
                    {
                        echo "Your password must not be blank.";
                        $url = htmlspecialchars($_SERVER['HTTP_REFERER']);
                        echo "<br/><br/>";
                        echo "<a href='$url'>Click Here To Return</a>";
                        die();
                    }

                    //If Email and EmailCheck are not equal, die.
                    if($Email != $EmailCheck)
                    {                                                                        
                        echo "The email addresses you have entered do not match. Please try again.";
                        $url = htmlspecialchars($_SERVER['HTTP_REFERER']);
                        echo "<br/><br/>";
                        echo "<a href='$url'>Click Here To Return</a>";
                        die();

                    }


                    //ELSE add data to DB.
                    else
                    {
                    //BEGIN TRANS
                    mysql_query("BEGIN TRAN");

                    //TABLE ADD.
                    $sql=mysql_query("INSERT INTO `user_details` (`Firstname`, `Surname`, `Email`, `Password`) VALUES ('$Firstname', '$Surname', '$Email', '$Password')")
                    or mysql_query("ROLLBACK TRAN") . die(mysql_error("Error registering, the database may be down, please try again later."));


                    //COMMIT transaction, to ensure data is added properly.
                    mysql_query("COMMIT TRAN");
                    header( 'Location: RegSucc.php' ) ;
                    }   
                } ?>
              <html> 
            <!--Registration Form-->
            <form name="form1" method="post" style="margin-left: 28%" action="Register.php">
                <table width="100%" border="0" cellpadding="3" cellspacing="1">
                <tr>
                    <td colspan="3"><strong>Register Account</strong></td>
                </tr>
                <tr>
                    <td style="width: 83px">First Name:</td>
                    <td>:</td>
                    <td><input name="firstname" type="text"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">Surname:</td>
                    <td>:</td>
                    <td><input name="surname" type="text"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">Email Address:</td>
                    <td>:</td>
                    <td><input name="email" type="text"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">Email Address Confirmation:</td>
                    <td>:</td>
                    <td><input name="emailcheck" type="text"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">Password:</td>
                    <td>:</td>
                    <td><input name="password" type="password"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">Verify Password:</td>
                    <td>:</td>
                    <td><input name="passwordcheck" type="password"/></td>
                </tr>
                <tr>
                    <td style="width: 83px">&nbsp;</td>
                    <td>&nbsp;</td>
                    <td><input type="submit" name="submit" value="Register"/></td>
                </tr>
                </table>
            </form>

Answer 1

$sql=mysql_query("INSERT INTO `user_details` (`Firstname`, `Surname`, `Email`, `Password`) VALUES ('$Firstname', '$Surname', '$Email', '$Password')")

should be

$sql=mysql_query("INSERT INTO user_details (Firstname, Surname, Email, Password) VALUES ('$Firstname', '$Surname', '$Email', '$Password')")

Also

SELECT * FROM 'user_details' WHERE Email = '$Email'

should be

SELECT * FROM user_details WHERE Email = '$Email'

that’s it…