How do I make PHP print out N/A if a form space is left empty?

I've created a PHP form that collects information from the user using the $_GET variable in PHP. This code then outputs what the user filled in on another page. However I want it to print 'N/A' if the user leaves a space empty.

I've tried using,

if ($firstname==' ' && $secondname==' ' && $email==' ' && $phone==' ' && $age==' ' && $position==' ' && $company==' '){
echo 'N/A';
}

What's wrong with this? Why wont it print 'N/A'. I've created the variables $firstname = $_GET['name'];

Thanks

 

' ' - that has a space. That's not empty.

<?php
    if (empty($firstname) && empty($secondname) && empty($email) && empty($phone) && empty($age) && empty($position) && empty($company))
    {
        echo 'N/A';
    }
?>

PHP:

 

Using $_GET-variables, you should always check to see if they're set - proper syntax for checking would be something like this:
$firstname = (isset($_GET['firstname'])) ? $_GET['firstname'] : 'N/A';
Then you just use the $firstname-var whereever you need to display either content.

 

Hello,
If you want to check if one of the variables has not been set you should use || istead of && on the syntax:

<?php
  if (empty($firstname) || empty($secondname) || empty($email) || empty($phone) || empty($age) || empty($position) || empty($company))
  {
      echo 'N/A';
}
?>

PHP:

 

Ok, thanks for the reply. Sorry if I sound a bit stupid I'm only 14 years old and only just learning PHP. Thanks

 

If you want to learn PHP, a website that will teach you at least the basics and more is CodeAcademy.com .. check it out. You might find it worthy of your time.