Why does this not make a difference between property and variable?

Question

class someclass
{
    public $foo = \'abcd\';

    public function __construct($data)
    {
        $this->foo = $data;
    }
    public function doSomething()
    {
         


        

Answer 1

It is correct and it works fine. I ran your code and it always gives me the same. There's no problem you have property $foo and $foo variable in one or multiple functions. It always give me the same answer.

If $_POST['foo']=test then echo $foo = $_POST['foo']; returns "test", $foo returns "test" and $somethingelse returns "test";