Online PHP editor | output for AJmhE

@ 2015-11-11T07:24:41Z

<?php

trait Singleton
{
    private static $instance; 
    
    private function __construct() {}
    private function __clone() {}
    private function __wakeup() {}
    
    public function getInstance() 
    {
        if (empty(static::$instanse)) {
            return new static();
        } else {
            return static::$instance;
        }
    }
}

class Foo 
{
    use Singleton;
    
    private $bar = 2;
    
    public function incBar()
    {
        $this->bar++;
    }
    
    public function getBar()
    {
        return $this->bar."<br/>";
    }
}

$foo = Foo::getInstance();

echo $foo->getBar();
$foo->incBar();
echo $foo->getBar();

Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.7: Warning: The magic method Singleton::__wakeup() must have public visibility in /in/AJmhE on line 9 Fatal error: Uncaught Error: Non-static method Foo::getInstance() cannot be called statically in /in/AJmhE:38 Stack trace: #0 {main} thrown in /in/AJmhE on line 38
Process exited with code 255.
Output for 7.0.0 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.31, 7.4.0 - 7.4.33: Deprecated: Non-static method Foo::getInstance() should not be called statically in /in/AJmhE on line 38 2 3
Output for 7.3.32 - 7.3.33: 2 3
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40: Strict Standards: Non-static method Foo::getInstance() should not be called statically in /in/AJmhE on line 38 2 3

preferences:dark modelive preview