3v4l.org

run code in 300+ PHP versions simultaneously
<?php class A { public $x; function __construct(){ $this->x = function(){echo "x";}; } function __call($name, $arguments) { if($name instanceof Closure){ call_user_func_array($this->name, $arguments); } } } $o->{"x"}();
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
Warning: Undefined variable $o in /in/rKeJr on line 19 Fatal error: Uncaught Error: Call to a member function x() on null in /in/rKeJr:19 Stack trace: #0 {main} thrown in /in/rKeJr on line 19
Process exited with code 255.
Output for 7.0.5 - 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
Notice: Undefined variable: o in /in/rKeJr on line 19 Fatal error: Uncaught Error: Call to a member function x() on null in /in/rKeJr:19 Stack trace: #0 {main} thrown in /in/rKeJr on line 19
Process exited with code 255.
Output for 7.3.32 - 7.3.33
Fatal error: Uncaught Error: Call to a member function x() on null in /in/rKeJr:19 Stack trace: #0 {main} thrown in /in/rKeJr on line 19
Process exited with code 255.
Output for 7.0.0 - 7.0.4
Notice: Undefined variable: o in /in/rKeJr on line 19 Fatal error: Uncaught Error: Call to a member function x() on unknown in /in/rKeJr:19 Stack trace: #0 {main} thrown in /in/rKeJr on line 19
Process exited with code 255.
Output for 5.6.0 - 5.6.40
Notice: Undefined variable: o in /in/rKeJr on line 19 Fatal error: Call to a member function x() on null in /in/rKeJr on line 19
Process exited with code 255.
Output for 5.5.0 - 5.5.38
Notice: Undefined variable: o in /in/rKeJr on line 19 Fatal error: Call to a member function x() on a non-object in /in/rKeJr on line 19
Process exited with code 255.
preferences:
265.46 ms | 401 KiB | 329 Q