@ 2014-10-18T21:24:31Z <?php
trait Singleton
{
public static function getInstance(){
static $instance = null;
if (!isset(static::$instance)) {
static::$instance = new static();
}
return static::$instance;
}
}
abstract class Abudabia {
use Singleton;
}
class a1 extends Abudabia
{
public function set()
{
return 'allah ahbar';
}
}
class a2 extends Abudabia
{
public function get()
{
return 'algazira';
}
}
$a = a1::getInstance();
$b = a2::getInstance();
var_dump($a,$b);
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Output for 8.0.0 - 8.0.30 , 8.1.0 - 8.1.28 , 8.2.0 - 8.2.18 , 8.3.0 - 8.3.6 Fatal error: Uncaught Error: Access to undeclared static property a1::$instance in /in/BE8HE:7
Stack trace:
#0 /in/BE8HE(34): Abudabia::getInstance()
#1 {main}
thrown in /in/BE8HE on line 7
Process exited with code 255 . Output for 7.0.0 - 7.0.20 , 7.1.0 - 7.1.20 , 7.2.0 - 7.2.33 , 7.3.16 - 7.3.33 , 7.4.0 - 7.4.33 Fatal error: Uncaught Error: Access to undeclared static property: a1::$instance in /in/BE8HE:7
Stack trace:
#0 /in/BE8HE(34): Abudabia::getInstance()
#1 {main}
thrown in /in/BE8HE on line 7
Process exited with code 255 . Output for 5.4.0 - 5.4.45 , 5.5.24 - 5.5.35 , 5.6.8 - 5.6.28 Fatal error: Access to undeclared static property: a1::$instance in /in/BE8HE on line 7
Process exited with code 255 . Output for 4.4.2 - 4.4.9 , 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 Parse error: syntax error, unexpected T_STRING in /in/BE8HE on line 2
Process exited with code 255 . Output for 4.3.0 - 4.3.1 , 4.3.5 - 4.3.11 , 4.4.0 - 4.4.1 , 5.0.0 - 5.0.5 Parse error: parse error, unexpected T_STRING in /in/BE8HE on line 2
Process exited with code 255 . Output for 4.3.2 - 4.3.4 Parse error: parse error in /in/BE8HE on line 2
Process exited with code 255 . preferences:dark mode live preview
219.51 ms | 401 KiB | 312 Q