All Questions
7
questions
0
votes
1
answer
743
views
why can't I access a protected method from a private method if the protected ones are inherited by the subclasses?
I do not understand this particular case or what Alexander says.
class instance is not the same as class?
As already Alexander Larikov said that you can't access protected
methods from class instance ...
user19481364
1
vote
2
answers
2k
views
Private property in parent class can be accessed and re-assigned through the instance of child class in PHP but protected one can't
I am very confused why $produk1->harga = 500; can still make a change
(or re-assign the value 500) to private $harga property despite private $harga in class Produk has PRIVATE visibility ? $...
- 48
3
votes
2
answers
3k
views
Visibility of __construct
If I have:
abstract class AbstractSingleton
{
protected static $instance;
public static function & getInstance()
{
if(null === static::$instance) static::$instance = new ...
- 8,193
0
votes
5
answers
170
views
PHP5 member visibility
Could someone explain me, why is it possible to do the following in PHP, but, for example, not in C# or Java:
Class A {
protected $a = 'Howdy!';
}
Class B extends A {
public function howdy() ...
- 22.6k
0
votes
2
answers
858
views
How can I protect a class property from extending classes in PHP?
Is it possible to do something like this:
class foo {
private $private = 'A';
}
class bar extends foo {
echo $this->private;
}
bar returns null...
I'd really like it if the variable $...
- 1,027
6
votes
5
answers
2k
views
Is visibility in PHP classes important, and why?
As you know, PHP class has private, public and protected keywords. I just started to write classes and I wonder what are the advantages of class visibility in PHP5.
And of course also disadvantages.....
- 3,187
23
votes
3
answers
22k
views
Strange behavior when overriding private methods
Consider the following piece of code:
class foo {
private function m() {
echo 'foo->m() ';
}
public function call() {
$this->m();
}
}
class bar extends foo {
...
- 84.9k