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run code in 150+ php & hhvm versions
Bugs & Features
<?php trait Singleton { final public static function getInstance() { if (!isset(static::$instance)) { static $instance; static::$instance = new static; } return static::$instance; } } abstract class Abudabia { use Singleton; } abstract class Mozambik { use Singleton; } class a1 extends Abudabia { public function set() { return 'allah ahbar'; } } class a2 extends Mozambik { public function get() { return 'algazira'; } } $a = a1::getInstance(); $b = a2::getInstance(); var_dump($a->set(),$b->get());
based on jOIQT
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Access to undeclared static property: a1::$instance in /in/9vkdP:9 Stack trace: #0 /in/9vkdP(40): Abudabia::getInstance() #1 {main} thrown in /in/9vkdP on line 9
Process exited with code 255.
Output for hhvm-3.10.0 - 3.12.0
Fatal error: Invalid static property access: a1::instance in /in/9vkdP on line 9
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Fatal error: Access to undeclared static property: a1::$instance in /in/9vkdP on line 9
Process exited with code 255.
Output for 4.4.2 - 4.4.9, 5.1.0 - 5.3.29
Parse error: syntax error, unexpected T_STRING in /in/9vkdP on line 2
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1, 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_STRING in /in/9vkdP on line 2
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/9vkdP on line 2
Process exited with code 255.