php and sql connection

[rich_hemmo]

Hi Guys I'm in the middle of creating my own website and I'm having trouble with letting users to register I have created the code but when I click on the "submit" button I'm getting a blank white screen 

config.php

<?php 
//Mysql Connect  |   mysql_connect("host= 3306","username","");
//Below example to connect in localhost
$a=mysql_connect("localhost","root","");

//select your database
$b=mysql_select_db("database_name",$a);
?>

and this is the submit_form.php

?php
$firstname=$_POST['firstname'];
$lastname=$_POST['lastname'];
$username=$_POST['username'];
//$confirmusername=$_POST['confirmusername'];
$password=$_POST['password'];
$confirmpassword=$_POST['confirmpassword'];
$email=$_POST['email'];
$confirmemail=$_POST['confirmemail'];

//Database connection
require_once("config.php");

//mysql query to insert value to database
$query=mysql_query("INSERT INTO registration (`firstname`, `lastname`, `username`, `confirmusername`, `password`, `confirmpassword`, `email` ,`confirmemail`) VALUES ('$firstname', '$lastname', '$username', '$password', '$confirmpassword', '$email' , '$confirmemail')");



//if value inserted successyully disply success message
if($query)
{
    
    echo 'Registred successfully..!!</div>';
}else
{
//error message
    echo '<unable to registred !!</div>';
}
?>

Hope someone can help me and give me some pointers please 

Richsubmit-form.phpconfig.phpregister.php

[cyberRobot]

Have you tried enabling errors?

http://www.php.net/manual/en/function.error-reporting.php

http://www.php.net/manual/en/errorfunc.configuration.php#ini.display-errors

[rich_hemmo]

hi cyberRobot I will have a look but its been a while since i have done error checking with php