My newbish PHP help

[adamFTW]

So, wahts is the finished code - I've been having trouble with this.

[lolwut]

Seen as it doesn't look like anyone else is going to post it:
Commented out mysql_real_escape_string because it only works if there's a database connection going on, didn't assume there was because there aren't any connections in the file.

<?php

//Clean function, comment out if not wanted.

function clean($this){
//$this = mysql_real_escape_string($this);
$this = strip_tags($this);
$this = htmlspecialchars($this, ENT_QUOTES);
$this = stripslashes($this);
return $this;
}

if(isset($_POST['submit'])){

//The form was sent, let's do some stuff!

$name = clean($_POST['name']);
$password = clean($_POST['password']);
$email = clean($_POST['email']);
$age = clean($_POST['age']);

   if ($name == "")
    {
        echo "Whoops! You didn't enter a username. You need that if you want to login!";
        exit;
    }

    if ($password == "")
    {
        echo "Whoops! You didn't enter a password. You need this to login to your account as well as security for your account!";
        exit;
    }

    if ($email =="")
    {
        echo "Whoops! You didn't enter an email. You need this to receive news and updates for the usersystem, as well as to verify your identity.";
        exit;
    }

    if ($age == "")
    {
        echo "Whoops! You didn't enter your age. We need this to verify you are old enough to register!";
        exit;
    }

    echo("Heya, $name - Welcome to $site. The details you used to sign up are as follows:<br>
    Name: $name<br />
    Email: $email<br />
    Age: $age<br />
    <br />
    If the details are incorrect, use the back button and try again. If they are correct, please continue to the installer.
    ");

}else{

//The form hasn't yet been sent! Display it.

  echo("<form action=\"register2.php\" method=\"post\">
    Username: <input type=\"text\" name\"name\"><br>
    Password: <input type=\"text\" name\"password\"><br>
    Email: <input type=\"text\" name=\"email\"><br>
    Age: <input type=\"text\" name=\"age\"><br>
    <input type=\"submit\" name=\"submit\" value=\"Submit\">
    </form>
  ");

}

die();

?>

[Dentafrice,]

Complete code:

<?php

//Clean function, comment out if not wanted.

function clean($string)
{

    $string = htmlspecialchars($string, ENT_QUOTES);

    if (get_magic_quotes_gpc())
    {

        $string = stripslashes($string);

    }

    $string = str_replace("\"", "", $string);
    $string = htmlentities($string);

    /**
     *  If you want SQL injection protection uncomment the next line
     */

    // $string = mysql_real_escape_string($string);

    return $string;

}

if ($_GET["action"] == "submit")
{

    //The form was sent, let's do some stuff!

    $name = clean($_POST["name"]);
    $password = clean($_POST["password"]);
    $email = clean($_POST["email"]);
    $age = clean($_POST["age"]);

    if ($name == "")
    {
        echo "Whoops! You didn't enter a username. You need that if you want to login!";
        exit;
    }

    if ($password == "")
    {
        echo "Whoops! You didn't enter a password. You need this to login to your account as well as security for your account!";
        exit;
    }

    if ($email == "")
    {
        echo "Whoops! You didn't enter an email. You need this to receive news and updates for the usersystem, as well as to verify your identity.";
        exit;
    }

    if ($age == "")
    {
        echo "Whoops! You didn't enter your age. We need this to verify you are old enough to register!";
        exit;
    }

    echo "Heya, $name - Welcome to $site. The details you used to sign up are as follows:<br>
    Name: $name<br />
    Email: $email<br />
    Age: $age<br />
    <br />
    If the details are incorrect, use the back button and try again. If they are correct, please continue to the installer.
    ";

    exit;

}
//The form hasn't yet been sent! Display it.

echo ("<form action=\"register2.php\" method=\"post\">
    Username: <input type=\"text\" name\"name\"><br>
    Password: <input type=\"text\" name\"password\"><br>
    Email: <input type=\"text\" name=\"email\"><br>
    Age: <input type=\"text\" name=\"age\"><br>
    <input type=\"submit\" name=\"submit\" value=\"Submit\">
    </form>
  ");

?>

[adamFTW]

When I use it, I enter everything and it tells me, " Whoops! You didn't enter a username. You need that if you want to login!".

[Dentafrice,]

<?php

//Clean function, comment out if not wanted.

function clean($string)
{

    $string = htmlspecialchars($string, ENT_QUOTES);

    if (get_magic_quotes_gpc())
    {

        $string = stripslashes($string);

    }

    $string = str_replace("\"", "", $string);
    $string = htmlentities($string);

    /**
     *  If you want SQL injection protection uncomment the next line
     */

    // $string = mysql_real_escape_string($string);

    return $string;

}

if ($_GET["action"] == "submit")
{

    //The form was sent, let's do some stuff!

    $name = clean($_POST["name"]);
    $password = clean($_POST["password"]);
    $email = clean($_POST["email"]);
    $age = clean($_POST["age"]);

    if ($name == "")
    {
        echo "Whoops! You didn't enter a username. You need that if you want to login!";
        exit;
    }

    if ($password == "")
    {
        echo "Whoops! You didn't enter a password. You need this to login to your account as well as security for your account!";
        exit;
    }

    if ($email == "")
    {
        echo "Whoops! You didn't enter an email. You need this to receive news and updates for the usersystem, as well as to verify your identity.";
        exit;
    }

    if ($age == "")
    {
        echo "Whoops! You didn't enter your age. We need this to verify you are old enough to register!";
        exit;
    }

    echo "Heya, $name - Welcome to $site. The details you used to sign up are as follows:<br>
    Name: $name<br />
    Email: $email<br />
    Age: $age<br />
    <br />
    If the details are incorrect, use the back button and try again. If they are correct, please continue to the installer.
    ";

    exit;

}
//The form hasn't yet been sent! Display it.

echo ("<form action=\"register2.php\" method=\"post\">
    Username: <input type=\"text\" name=\"name\"><br>
    Password: <input type=\"text\" name\"password\"><br>
    Email: <input type=\"text\" name=\"email\"><br>
    Age: <input type=\"text\" name=\"age\"><br>
    <input type=\"submit\" name=\"submit\" value=\"Submit\">
    </form>
  ");

?>

[adamFTW]

Now, when I regsiter a new page doesn't show up, all that happens is the form comes up again.

[Dentafrice,]

<?php

//Clean function, comment out if not wanted.

function clean($string)
{

    $string = htmlspecialchars($string, ENT_QUOTES);

    if (get_magic_quotes_gpc())
    {

        $string = stripslashes($string);

    }

    $string = str_replace("\"", "", $string);
    $string = htmlentities($string);

    /**
     *  If you want SQL injection protection uncomment the next line
     */

    // $string = mysql_real_escape_string($string);

    return $string;

}

if ($_GET["action"] == "submit")
{

    //The form was sent, let's do some stuff!

    $name = clean($_POST["name"]);
    $password = clean($_POST["password"]);
    $email = clean($_POST["email"]);
    $age = clean($_POST["age"]);

    if ($name == "")
    {
        echo "Whoops! You didn't enter a username. You need that if you want to login!";
        exit;
    }

    if ($password == "")
    {
        echo "Whoops! You didn't enter a password. You need this to login to your account as well as security for your account!";
        exit;
    }

    if ($email == "")
    {
        echo "Whoops! You didn't enter an email. You need this to receive news and updates for the usersystem, as well as to verify your identity.";
        exit;
    }

    if ($age == "")
    {
        echo "Whoops! You didn't enter your age. We need this to verify you are old enough to register!";
        exit;
    }

    echo "Heya, $name - Welcome to $site. The details you used to sign up are as follows:<br>
    Name: $name<br />
    Email: $email<br />
    Age: $age<br />
    <br />
    If the details are incorrect, use the back button and try again. If they are correct, please continue to the installer.
    ";

    exit;

}
//The form hasn't yet been sent! Display it.

echo ("<form action=\"?action=submit\" method=\"post\">
    Username: <input type=\"text\" name=\"name\"><br>
    Password: <input type=\"text\" name\"password\"><br>
    Email: <input type=\"text\" name=\"email\"><br>
    Age: <input type=\"text\" name=\"age\"><br>
    <input type=\"submit\" name=\"submit\" value=\"Submit\">
    </form>
  ");

?>

[adamFTW]

Now it says "Whoops! You didn't enter a password. You need this to login to your account as well as security for your account!".

[Invent]

This is just plain silly. The file he has posted has NO database stuff whatsoever, so why do you need a cleaning function? If it's just displaying HTML then all you need is something like htmlentites & stripslashes :\

[Dentafrice,]

Okay, what is the point of the register script if he isn't going to register someone?

He is making a user system.. he is going to end up inserting it somewhere.. best to have a clean function :\