PHP type hinting in PHPDoc in derived classes

Question

Take a look at this code example:

class basetype {
    public function method() {
        return false;
    }
}

class extendtype extends basetype {
    public function methodb() {
        return true;
    }
}

class aa {
    /**
     * @var basetype
     */
    protected $membera;
}

class bb extends aa {
    public function __constructor() {
        $this->membera = new extendtype();
    }

    public function dosomething() {
        $this->membera->methodb();
    }
}

When edited within PHPStorm I get warning that "Method methodb not found in class basetype". I work with preexisting code base and can not alter the base classes. So what can I do in order to remove this warning?

Why are you @var basetype the $membera variable? Yes, $membera is a type of basetype, but that may be confusing PHPStrorm. Just remove that and see if you get the same error. — Rabbit Guy
– Rabbit Guy, Commented Oct 2, 2015 at 15:26
I think you are misreading the warranting. Past it form phpstorm. At the end of the day it is just a hint, if your code works it doesn't matter. — M H
– M H, Commented Oct 2, 2015 at 15:29
Possible duplicate of PHPStorm type hinting subclasses of baseclass — beardedlinuxgeek
– beardedlinuxgeek, Commented May 17, 2016 at 17:39

Charles · Accepted Answer · 2015-10-05 13:15:27Z

1

You can override $membera in your class BB and give it a new doc-block with the derived type.

class bb extends aa {
    /**
     * @var extendtype
     */
    protected $membera;

    public function __constructor() {
        $this->membera = new extendtype();
    }

    public function dosomething() {
        $this->membera->methodb();
    }
}

answered Oct 5, 2015 at 13:15

Charles

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