PHP shorthand if echo else assign variable

Question

I want to write this in one line if possible:

if ($some_var === true) {
 $return .= $input;
} else {
 echo $input;
}

Obviously I don't want this: if ($some_var === true) { $return.= $input; } else { echo $input; } if ($some_var === true) { $return.= $input; } else { echo $input; } if ($some_var === true) { $return.= $input; } else { echo $input; } but a shorter version of it.

I looked at other answers but I only find the echo (expression)? true: false; statements. I don't want to echo on the true, only on the false.

Answer 1

$some_var = true;
$input = 'abc';
$return = '123';
echo ($some_var === true) ? ($return .= $input) : ($input);