Doc #78451 [NEW]: No possibility make Singleton in the PHP
From: forziforzi at gmail dot com
Operating system:
PHP version: 7.3.8
Package: Class/Object related
Bug Type: Documentation Problem
Bug description:No possibility make Singleton in the PHP
Description:
------------
---
From manual page: https://php.net/class.closure
---
So, no Singleton in the PHP!
Test script:
---------------
<?php
final class A {
private function __construct() {}
private function __clone() {
throw new \Exception('Singleton');
}
private function __sleep() {
throw new \Exception('Singleton');
}
private function __wakeup() {
throw new \Exception('Singleton');
}
public static function instantiate() {
static $obj;
return $obj = $obj ?? new self;
}
}
$closure = function () {
$class = get_class($this);
return new $class;
};
$obj = A::instantiate();
var_dump($obj);
var_dump($closure->call($obj));
--
Edit bug report at https://bugs.php.net/bug.php?id=78451&edit=1
--
Fix committed: https://bugs.php.net/fix.php?id=78451&r=fixed
Fixed in release: https://bugs.php.net/fix.php?id=78451&r=alreadyfixed
Need backtrace: https://bugs.php.net/fix.php?id=78451&r=needtrace
Need Reproduce Script: https://bugs.php.net/fix.php?id=78451&r=needscript
Try newer version: https://bugs.php.net/fix.php?id=78451&r=oldversion
Not developer issue: https://bugs.php.net/fix.php?id=78451&r=support
Expected behavior: https://bugs.php.net/fix.php?id=78451&r=notwrong
Not enough info: https://bugs.php.net/fix.php?id=78451&r=notenoughinfo
Submitted twice: https://bugs.php.net/fix.php?id=78451&r=submittedtwice
register_globals: https://bugs.php.net/fix.php?id=78451&r=globals
PHP version support discontinued: https://bugs.php.net/fix.php?id=78451&r=phptooold
Daylight Savings: https://bugs.php.net/fix.php?id=78451&r=dst
IIS Stability: https://bugs.php.net/fix.php?id=78451&r=isapi
Install GNU Sed: https://bugs.php.net/fix.php?id=78451&r=gnused
Floating point limitations: https://bugs.php.net/fix.php?id=78451&r=float
No Zend Extensions: https://bugs.php.net/fix.php?id=78451&r=nozend
MySQL Configuration Error: https://bugs.php.net/fix.php?id=78451&r=mysqlcfg
Thread (3 messages)
- forziforzi at gmail dot com