[FIXED] How to write this conditional statements with ternary operators

Issue

I want to check if the usr_name of user is empty, then get his email and adjust a new variable to it.

So here is the traditional way:

if(auth()->user()->usr_name != null){
    $user_input = auth()->user()->usr_name;
}else{
    $user_input = auth()->user()->usr_email;
}

Now I want to write this with ternary condition operators, so I tried this:

$user_input = empty(auth()->user()->usr_name) ? auth()->user()->usr_name : auth()->user()->usr_email;

But this is wrong, since it returns null for $user_input.

So what is the correct way of writing this with ternary operators?

Solution

$user_input = auth()->user()->usr_name ?: auth()->user()->usr_email;

Ternary operator has a short syntax in PHP. The above code is the same as

if (auth()->user()->usr_name) {
    $user_input = auth()->user()->usr_name;
} else {
    $user_input = auth()->user()->usr_email;
}

Which is most likely equivalent to your code, considering the non strict != null check.

Answered By - Sumit

Answer Checked By - Dawn Plyler (PHPFixing Volunteer)