PHP Dynamic Class Loading w/ Namespaces

Question

I'm using namespaces in PHP, and trying to load classes dynamically. My currently structure looks like this:

 class Bootstrap {

    protected $controller = 'home';

    protected $method = 'index';

    protected $params = [];

    function __construct($url) {
        $urlArray = $this->parseurl($url);
        if(file_exists('../app/http/controllers/' . $urlArray[0] . '.php'))
        {
            $this->controller = $urlArray[0];
            unset($urlArray[0]);
        }

        require_once '../app/http/controllers/' .  $this->controller . '.php';

        $this->controller = new Controllers\$this->controller;  

        var_dump($this->controller);
    }
    public function parseurl($url) {
        return $url = explode('/', filter_var(rtrim($url, '/'), FILTER_SANITIZE_URL));
    }
}

The error I'm getting is:

Parse error: syntax error, unexpected '$this' (T_VARIABLE), expecting identifier (T_STRING)

How do I make it so I can load the classes with this bootstrap function?

Shira · Accepted Answer · 2016-09-19 19:45:44Z

2

The following line:

$this->controller = new Controllers\$this->controller;

is not valid PHP code.

If you need to instantiate classes using a dynamic class name, use an intermediate variable:

$className = 'Controllers\\' . $this->controller;
$this->controller = new $className();

answered Sep 19, 2016 at 19:45

Shira

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Comments

Kamrul Khan · Accepted Answer · 2016-09-19 19:46:01Z

0

This should work:

$controller = 'Controllers\'.$this->controller;
$this->controller = new $controller();

answered Sep 19, 2016 at 19:46

Kamrul Khan

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