troubleshooting Question

Need help understanding how these nested PHP "if" and "else" statements relate to one another.

Avatar of LB1234
LB1234 asked on
15 Comments6 Solutions273 ViewsLast Modified:
The following code works, but I'd like to improve my understanding of the if and else statements.  How do the first and second else statement know which if they're related to?

Does the first else statement pertain to the if statement directly above it?  I know the second else statement relates to the very first IF statement but I don't understand why it's not relating to any of the other IF statements instead?


      $errors = array();  
		if(isset($_POST["submit"])) {
	  	$first_name = $_POST["first_name"];
	  	$last_name = $_POST["last_name"];
	  	$user_name = $first_name . "_" . $last_name;
	  	$access_level = $_POST["access_level"];
		$department = $_POST["department"];
		$password = $_POST["password"];
	  	$password2 = $_POST["password2"];
		 if ($password !== $password2) {
			$errors[] = "Passwords do not match, please re-enter";  
		 if (empty($password)) {
			 $errors[] = "Password is empty, please enter a password";
		  } else {
			$query = "INSERT INTO users (first_name, last_name, user_name,  department, password, password2, access_level) VALUES (";
			$query .= "'{$first_name}', '{$last_name}', '{$user_name}',  '{$department}', '{$password}', '{$password2}', '{$access_level}')";
			$result = mysqli_query($connection, $query);
	} else {
	  	$first_name = "";
	  	$last_name = "";
	  	$user_name = "";
	  	$access_level = "";
		$department = "";
		$password = "";
	  	$password2 = "";
	  	$message = "Please log in";


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