PHPDoc and late (static or dynamic) binding
Most PHP IDEs rely on phpdoc to get hints about the type of an expression. Yet, I use frequently this pattern, which doesn't seem to be covered:
class Control {
    private $label = '';
    /** @return ??? */
    public static function Make(){ return new static(); }
    /** @return ??? */
    public function WithLabel($value){  $this->label = $value;  return $this;  }
    /** @return void */
    public function Render(){ /* ... */ }
}
class Textbox extends Control {
   private $text = '';
    /** @return ??? */
    public function WithText($text){  $this->width = $text;  return $this;  }
}
Now I can use the classes like this:
Textbox::Make()           // <-- late static binding, returns Textbox
   ->WithLabel('foo')     // <开发者_如何学JAVA;-- late dynamic binding, returns Textbox
   ->WithText('bar')      // <-- normal binding, returns Textbox
   ->Render();
Is there any way to replace the '???'s with something so that the typing information is correct?
For static methods in classes that may be extended:
/** @return static */
For final-static methods:
/** @return Control */
For non-static methods:
/** @return $this */
but it's not documented in phpdoc manual
Note that nowadays any Intelij IED (like PhpStorm 2019), does support all three
static,$this, andself(as return type in PhpDoc).
Updated answer taking as reference the most popular PHP IDE (PHPStorm 8):
For @return you can use:
self$this
For @method you can use:
$this
Example:
/**
 * Class Model
 * @method $this parentMethodA
 */
class Model
{
    /**
     * @return $this
     */
    public function parentMethodB()
    {
        return $this;
    }
    /**
     * @return self
     */
    public function parentMethodC()
    {
        return $this;
    }
}
/**
 * Class Person
 * @method $this childMethodA
 */
class Person extends Model
{
    /**
     * @return $this
     */
    public function childMethodB()
    {
        return $this;
    }
    /**
     * @return self
     */
    public function childMethodC()
    {
        return $this;
    }
}
$p = new Person();
//In the following lines IDE will recognize those variables as:
$t1 = $p->parentMethodA(); //Instance of Person
$t2 = $p->parentMethodB(); //Instance of Person
$t3 = $p->parentMethodC(); //Instance of Model
$t4 = $p->parentMethodA(); //Instance of Person
$t5 = $p->parentMethodB(); //Instance of Person
$t6 = $p->parentMethodC(); //Instance of Person
Update for PHPStorm 10 (EAP)
It seems that now static can be used too, but only for @return.
Updated cvsguimaraes' answer to include static options:
/**
 * Class Bar
 * @method $this parentMethodA
 */
class Bar
{
    /**
     * @return $this
     */
    public function parentMethodB()
    {
        return $this;
    }
    /**
     * @return self
     */
    public function parentMethodC()
    {
        return $this;
    }
    /**
     * @return static
     */
    public static function staticMethod()
    {
        return new static();
    }
    /**
     * @param $id
     *
     * @return bool
     */
    public function load($id)
    {
        // test
        return $id ? true : false;
    }
    /**
     * @param null $id
     *
     * @return static
     */
    public static function get($id = NULL){
        $obj = static::staticMethod();
        if (is_null($id)) {
            return $obj;
        }
        if ($obj->load($id)) {
            return $obj;
        }
        return false;
    }
}
/**
 * Class Foo
 * @method $this childMethodA
 */
class Foo extends Bar
{
    /**
     * @return $this
     */
    public function childMethodB()
    {
        return $this;
    }
    /**
     * @return self
     */
    public function childMethodC()
    {
        return $this;
    }
}
/**
 * Class Bar
 */
class Baz extends Bar 
{
}
$p = new Foo();
/** @var Foo $Foo */
$Foo = 'Foo';
$Baz = 'Bar';
//  IntelliJ recognizes the following as:
$t1 = $p->parentMethodA(); //Instance of Foo
$t2 = $p->parentMethodB(); //Instance of Foo
$t3 = $p->parentMethodC(); //Instance of Model
$t4 = $p->childMethodA(); //Instance of Foo
$t5 = $p->childMethodB(); //Instance of Foo
$t6 = $p->childMethodC(); //Instance of Foo
$t7 = $Foo::staticMethod(); //Instance of Foo
$t8 = Foo::staticMethod(); //Instance of Foo
$t9 = $p::staticMethod(); //Instance of Foo
$t10 = $Foo::get(); //Instance of Foo
$t12 = Bar::get(); //Instance of Bar
$t11 = $Baz::get(); // Unknown
 加载中,请稍侯......
      
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