My newbish PHP help

[adamFTW]

Alright, to expand my knowledge in PHP, i want to attempt to make a usersystem.

I am currently making a registration code, and I have the following:

<?php
//The Variables
$name = $_POST[name];
$password = $_POST[password];
$email - $_POST[email];
$age = $_POST[age];
$submit = $_POST[submit];

//The IFs
if($submit !=""){

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

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

elseif($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.";
}

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

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.";
}

// The HTML
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>";
  
  ?>

You can view the script here: www.roflhabbos.com/dev/register2.php
It shows me things I don't want it to, such as: " Whoops! You didn't enter your age. We need this to verify you are old enough to register!" when I did enter an age. It also doesnt show the variable I entered, it only shows what I entered for $age.

Any help?

[Agnostic Bear]

Alright, to expand my knowledge in PHP, i want to attempt to make a usersystem.

I am currently making a registration code, and I have the following:

<?php
//The Variables
$name = $_POST[name];
$password = $_POST[password];
$email - $_POST[email];
$age = $_POST[age];
$submit = $_POST[submit];

//The IFs
if($submit !=""){

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

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

elseif($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.";
}

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

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.";
}

// The HTML
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>";
  
  ?>

You can view the script here: www.roflhabbos.com/dev/register2.php
It shows me things I don't want it to, such as: " Whoops! You didn't enter your age. We need this to verify you are old enough to register!" when I did enter an age. It also doesnt show the variable I entered, it only shows what I entered for $age.

Any help?

!= is does not equal, you've got it so if it doesn't equal blank, then do it
you need == instead of !=

[Dentafrice,]

<?php
//The Variables
$name = $_POST["name"];
$password = $_POST["password"];
$email - $_POST["email"];
$age = $_POST["age"];
$submit = $_POST["submit"];

//The IFs
if ($submit != "")
{

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

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

    elseif ($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.";
    }

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

    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 HTML
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>";

?>

That should work?

[chrisgocrazyH]

<?php
//The Variables
$name = $_POST["name"];
$password = $_POST["password"];
$email - $_POST["email"];
$age = $_POST["age"];
$submit = $_POST["submit"];

//The IFs
if ($submit != "")
{

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

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

    elseif ($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.";
    }

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

    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 HTML
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>";

?>

That should work?

u have if ($submit != "")

[adamFTW]

Okay, I added that code but when I register I get the following:

Whoops! You didn't enter a username. You need that if you want to login!Heya, - Welcome to . The details you used to sign up are as follows:
Name:
Email:
Age: 14

If the details are incorrect, use the back button and try again. If they are correct, please continue to the installer.

As you can see, it still has that username error, as well as it doesnt show what the user inputted in the form, only the age displays it.

[Pat McGroin]

Wouldn't the error have something to do with the elseif's? I'm no expert but looking at the code then you're ignoring all fields except the age because it's the last one and the if ends there?

[adamFTW]

The age is an elseif too.

[Pat McGroin]

Yes, but the age is the last field. So it takes that one and outputs it.

[adamFTW]

How wopuld I make it so it outputs them all?

[Dentafrice,]

<?php
//The Variables
$name = $_POST["name"];
$password = $_POST["password"];
$email - $_POST["email"];
$age = $_POST["age"];
$submit = $_POST["submit"];

//The IFs
if ($submit != "")
{

    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 HTML
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>";

?>

Removed the elseif's and added exits.