PHP - class member type

Question

I have this code:

class X{

}

class Y{
    private $x;

    public function printx(){
        echo $this->x;
    }
}

PHPStorm hints on private $x:

Missing property's type declaration

But when I wrote type private X $x;, error in runtime:

Parse error: syntax error, unexpected 'X' (T_STRING), expecting function (T_FUNCTION) or const (T_CONST)

Completed code is:

class X{

}

class Y{
    private X $x;

    public function printx(){
        echo $this->x;
    }
}

My PHP version is 7.3.6. Where is the problem? How to set type of class member?

Thanks

Or tell PhpStorm that you're using an older version of PHP, then it won't warn about this. — Barmar
– Barmar, Commented Sep 16, 2019 at 19:01

Francesco Simeoli · Accepted Answer · 2019-09-16 20:09:43Z

1

You can set the PHP runtime version in PhpStorm settings to get the right hints:

File -> Settings -> Languages & Frameworks -> PHP

In the main tab set these values:

- "PHP language level"
- "CLI Interpreter"

answered Sep 16, 2019 at 20:09

Francesco Simeoli

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