为什么Eclipse反对`static :: $ var`？

Question

I have the following static function in a PHP class:

static function __callStatic($method,$args){
    $called=NULL;
    if(empty(static::$collection)) static::slurp();
    if(method_exists(static::$objtype,$method)){
        foreach(static::$collection as $obj){
            $called[]= call_user_func_array(array($obj, $method), $args);
        }
    } else if (property_exists(static::$objtype,$method)){ //$method isn't a method, it's a property
        foreach(static::$collection as $obj){
            $called[]= $obj->$method;
        }
    } else if($method=='collection'){
        $called=static::$collection;
    } else {
        throw new ZException("$method does not exist");
    }
    return $called;
}

The static variables are all defined but possibly not set. The code appears to do what I want it to and throws no errors of any level. But yet my new installation of Eclipse (Helios) PDT has marked every instance of static::$var as an 'unexpected static' error. If I replace static::$var with self::$var the Eclipse error goes away- but then the code doesn't work.

How do I convince Eclipse that these are not errors?

Eclipse for PHP Developers Version: Helios Service Release 1 Build id: 20100917-0705 on 64 bit CentOS

Answer 1

Late Static Binding was introduced with PHP 5.3. Check Window > Preferences > PHP > Executables and Interpreter to make sure Eclipse is using PHP 5.3.