public function load($name, $shared = true)
{
$obj = null;
if (isset($this->classes[$name])) {
list($class, $params, $callback) = $this->classes[$name];
$exists = isset($this->instances[$name]);
if ($shared) {
$obj = $exists ? $this->getInstance($name) : $this->newInstance($class, $params);
if (!$exists) {
$this->instances[$name] = $obj;
}
} else {
$obj = $this->newInstance($class, $params);
}
if ($callback && (!$shared || !$exists)) {
$ref = array(&$obj);
call_user_func_array($callback, $ref);
}
}
return $obj;
}