Question

Is there a way in PHP the class definition to have a property set to a STD object with set properties?

I was thinking you can type cast but its not allowed for properties in the class definition.

//example.
class Foo{
   private static $Obj = (object) ['bizz', 'bazz'];
}

which will trigger this error:

Parse error: syntax error, unexpected '(object)' (object) (T_OBJECT_CAST)

Answer 1

You cannot assign non-constant values to class properties during declaration. From http://php.net/language.oop5.properties

…initialization must be a constant value–that is, it must be able to be evaluated at compile time and must not depend on run-time information in order to be evaluated.

You will need to use a class method to initialise the property, eg

class Foo {
    private static $Obj;

    private static getObj() {
        if (null === self::$Obj) {
            self::$Obj = (object) ['bizz', 'bazz'];
        }
        return self::$Obj;
    }