Code completion in injected classes - php

Question

Here is my sample code which is what I want to get, but in User class I get no codecompletion (for $this->app) in PHPSotrm.
How to change that code to enable code completion? I want to avoid global.
namespace myApp
class app
{
public $pdo = "my PDO";
public function __construct() {
$this->user=new User($this);
$this->test=new Test($this);
echo $this->user->getPDO();
//"my PDO"
echo $this->test->getUserPDO();
//"my PDO"
}
}
class User
{
private $app=null;
public function __construct($app) {
$this->app=$app;
}
public function getPDO() {
return $this->app->pdo;
//no code completion
}
}
class Test
{
private $app=null;
public function __construct($app) {
$this->app=$app;
}
public function getUserPDO() {
return $this->app->user->getPDO;
//no code completion
}
}

Answer 1

There's plenty of information on how to achieve this. All you need to do is to add the PHPDoc describing the property type.
class User
{
/**
* #var App
*/
private $app=null;
/**
* #param App $app
*/
public function __construct($app) {
$this->app = $app;
}
/**
* #return PDO
*/
public function getPDO() {
return $this->app->pdo;
}
}
If properties are implemented via magic getters / setters, you can use the same principles on the class itself.
/**
* #property App $app
* #method Pdo getPdo()
*/
class User
{
// …