<?php
abstract class T
{
static protected $instanses;
final private function __construct(){
}
public static function getInstance()
{
if (!isset(static::$instanses)) {
static::$instanses = new static;
}
return static::$instanses;
}
}
class A extends T
{
static protected $instanses;
}
class B extends A
{
static protected $instanses;
}
$t = A::getInstance();
var_dump($t);
$t1 = B::getInstance();
var_dump($t1);
new B();
?>
object(A)#1 (0) {
}
object(B)#2 (0) {
}
Fatal error: Uncaught Error: Call to private T::__construct() from global scope in /in/MgbJ5:37
Stack trace:
#0 {main}
thrown in /in/MgbJ5 on line 37
Process exited with code 255.
Output for 8.3.5
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
object(A)#1 (0) {
}
object(B)#2 (0) {
}
Fatal error: Uncaught Error: Call to private T::__construct() from global scope in /in/MgbJ5:37
Stack trace:
#0 {main}
thrown in /in/MgbJ5 on line 37
Process exited with code 255.
object(A)#1 (0) {
}
object(B)#2 (0) {
}
Fatal error: Uncaught Error: Call to private T::__construct() from invalid context in /in/MgbJ5:37
Stack trace:
#0 {main}
thrown in /in/MgbJ5 on line 37
Process exited with code 255.
object(A)#1 (0) {
}
object(B)#2 (0) {
}
Fatal error: Call to private T::__construct() from invalid context in /in/MgbJ5 on line 37
Process exited with code 255.