Question

EDIT:

I fixed my typos, and calling a class IS NOT case sensitive

i’m seeing that if I have

class A
{
    public function __construct()
    {
        echo 'hello';
    }
}

and do this

if (class_exists('a'))
    $class = 'a';

$a = new $class();

I will see

hellohello

If i comment out the if statement then I’m okay, it will echo out

hello

How can I stop the class_exists() from running the classes constructor?

EDIT:

this is my usage

foreach ($this->getNamespace() as $ns) {

                    //if (class_exists($ns . '\\' . $controller))
                        $controller = $ns . '\\' . $controller;

                    if (class_exists($ns . '\\' . $model))
                        $model = $ns . '\\' . $model;
                }

                $model = new $model($this->config);
                $controller = new $controller($this->config);

Answer 1

When running the following code:

class A
{
    public function __construct()
    {
        echo 'hello';
    }
}

if (class_exists('a'))
    $class = 'a';

$a = new $class();

I get:

hello

Your problem is likely elsewhere.