Question

I’m trying to get my caching working correctly so that I don’t need to create a new instance of memcache every time I want to cache a query in a model function:

class contentModel {

    function getData() {

        $core = Connect::getInstance();

        $memcache = new Memcache;
        $memcache->connect('localhost', 11211) or die ("Could not connect");

        $data = $memcache->get("query".$sql);

        if($!data)
            // get data

        return $data;
    }
}

If in my root index.php I add:

global $memcache;
$memcache = new Memcache;
$memcache->connect('localhost', 11211) or die ("Could not connect");

Then would I just be able to call $memcache->get($key) throughout all classes without have to re instance it?

Or is there another way I should go about simplifying this?

Answer 1

You could make $memcached a static member of your model base class, for example:

class Model {
    protected static $memcached;

    public static function setMemcached(Memcached $mc) {
        self::$memcached = $mc;
    }
}

class User extends Model {
    public function getData() {
        parent::$memcached->get("...");
    }
}

// In index.php
Model::setMemcached(new Memcached("127.0.0.1:11211"));