<?php
interface I1
{
public function F1();
public static function FS2();
public static function FS3();
}
abstract class C1 implements I1
{
public function __construct()
{
static::F1();
}
public static function FS2()
{
static::FS3();
}
}
abstract class C2 extends C1
{
public function F1()
{
echo __CLASS__;
}
public final static function FS3()
{
echo __CLASS__;
}
}
final class C3 extends C2
{
public function __construct()
{
parent::__construct();
self::FS2();
}
public function F1()
{
echo __CLASS__;
}
}
class C4 extends C2
{
public function F1() {
}
}
//$_class = new C2();
C4::FS2();
Warning: PHP Startup: Unable to load dynamic library 'sodium.so' (tried: /usr/lib/php/8.3.5/modules/sodium.so (libsodium.so.23: cannot open shared object file: No such file or directory), /usr/lib/php/8.3.5/modules/sodium.so.so (/usr/lib/php/8.3.5/modules/sodium.so.so: cannot open shared object file: No such file or directory)) in Unknown on line 0
C2