How to write clean code.

Good code

At some time we write if statement like:

public function create($type) {

    if ($type == 1) {
        return "A";
    } elseif ($type == 2) {
        return "B";
    } elseif ($type == 3) {
        return "C";
    }
}

this code is good and worked but not clean code.

clean code

we can convert this code to be like:

priviate $array = [1 => 'A', 2 => 'B', 3 => 'C']; 

public function create($type) {


    return key_exists($type, $this->array)? $this->array[$type]:false; 
}

Comments

[Lito]

More clean:

protected static TYPES = [1 => 'A', 2 => 'B', 3 => 'C'];

public function create(int $type): ?string
{
    return static::TYPES[$type] ?? null;
}