Re: issue with inheriting private property from abstract class

ok, i understand now that private members are NOT inherited. i guess it was just throwing me off that var_dump()/print_r() display the parents private member, even tho its not really a member of the subclass. thanks Marek Kilimajer wrote:

Chris wrote --- napísal::

if anyone can, would you please explain why the below code does what it does? I would expect $this->test in TestInstance to refer to the inherited $test from Test. Using php5RC3. Thanks. <?php abstract class Test {

    private $test;
    abstract public function addToTest($i);

} class TestInstance extends Test {

    public function __construct() {
        $this->test = 0;
    }

    public function addToTest($i) {
        $this->test += $i;
    }

} $t = new TestInstance(); $t->addToTest(3); var_dump($t); // test var SHOULD be private echo "private test (shouldn't be able to access it directly, but i can): ".$t->test."\n\n"; /* output ------------------------------- object(TestInstance)#1 (2) { ["test:private"]=> NULL ["test"]=> int(3) } private test (shouldn't be able to access it directly, but i can): 3 */ ?>

The variable is private for Test, so TestInstance does not have access to it. By assigning 0 to $this->test in the constructor of TestInstance, you create a new property of TestInstance that is public (the default). var_dump() shows it clearly: object(TestInstance)#1 (2) { ["test:private"]=> NULL <---- belongs to Test

  ["test"]=> int(3)         <---- belongs to TestInstance

}