access to static variable of abstract class in child class

Question

Line: return 'Static hello ' . self::static_user . '...<br />'; Produces: Fatal error: Undefined class constant 'static_user' in ....

Note: Logic might be silly but I'm just playing wit it at the moment. Question is how can I access to static variable of abstract class in child class? I can access to public one $public_user with $this->public_user in child class.

abstract class UserAbstract
{
protected $public_user = null;
    static protected $static_user = null;

    public function __construct($name)
    {
    $this->public_user = $name;
        self::$static_user = $name;
    }

    abstract static function static_hello();
}

class User extends UserAbstract
{
    static function static_hello()
    {
        return 'Static hello ' . self::static_user . '...<br />';
    }
}

$obj_user = new User('Voodoo');
echo $obj_user->static_hello();

Vipin Jain · Accepted Answer · 2012-11-05 11:16:56Z

2

Use this:

return 'Static hello ' . parent::$static_user . '...<br />';

answered Nov 5, 2012 at 11:16

Vipin Jain

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4 Comments

BentCoder Over a year ago

I can't believe myself. How did I miss that..... Always something little. I actually know I have to use $ mark but sometimes happens, what can I say.. Thanks

BentCoder Over a year ago

I'm trying to use User::static_hello(); but doesn't print anything. Not even an error.

Vipin Jain Over a year ago

@MadMax : why will it print anything when this function only returns the value??

BentCoder Over a year ago

I think I should go and sleep now ... Missed echo this time ;)

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