I am trying to verify whether or not a username and email address exist in my database and have tried to do a if, elseif, else statement to no avail.
I want to first run a check to see if the username is fine - obviously if not, an echo statement will appear. If the username doesn't exist, run an elseif statement to see if the email address is unique - again if not, another echo statement will appear. For the final statement, if all other conditions return false, I want to run the below code so that the user's input is submitted to the database.
I initially tried to declare two variables with a statement to check if the username=$username and email_address=$email_address then check to see if the number of rows returned from a mysqli_query is more than 1 for the username. I entered an elseif statement with the same but for email address but then I had an else statement with the below code in {} brackets.
I have deleted the original code because too many errors were thrown up, and was probably too convoluted and messy when a more elegant way to do what I was exists.
Any help would be appreciated.
if(isset($_POST['submit']))
{
$sql = "INSERT INTO users (first_name, last_name, username, email_address, password, gender, city, country, verification_code, verified, sign_up_date) VALUES (
'$first_name',
'$last_name',
'$username',
'$email_address',
'$password',
'$gender',
'$city',
'$country',
'$verification_code',
'1',
'$sign_up_date')";
$result = mysqli_query($conn,$sql);
header("Location:confirmation.php");
}