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run code in 200+ php & hhvm versions
Bugs & Features
<?php abstract class Figure { protected $color; protected $position; abstract public function move($a, $b); } class Bishop extends Figure { public function move($a, $b) { return true; } } class Rook extends Figure { public function move($a, $b) { return false; } } class Queen extends Figure { public function move($a, $b) { return false; } } $bishop = new Bishop(); assert($bighop->move('E2', 'E4') === false); assert($bighop->move('E2', 'A6') === true);
Output for 7.0.5 - 7.3.1
Notice: Undefined variable: bighop in /in/k0ev6 on line 31 Fatal error: Uncaught Error: Call to a member function move() on null in /in/k0ev6:31 Stack trace: #0 {main} thrown in /in/k0ev6 on line 31
Process exited with code 255.
Output for 7.0.0 - 7.0.4
Notice: Undefined variable: bighop in /in/k0ev6 on line 31 Fatal error: Uncaught Error: Call to a member function move() on unknown in /in/k0ev6:31 Stack trace: #0 {main} thrown in /in/k0ev6 on line 31
Process exited with code 255.
Output for 5.6.0 - 5.6.38
Notice: Undefined variable: bighop in /in/k0ev6 on line 31 Fatal error: Call to a member function move() on null in /in/k0ev6 on line 31
Process exited with code 255.
Output for 5.3.23 - 5.5.38
Notice: Undefined variable: bighop in /in/k0ev6 on line 31 Fatal error: Call to a member function move() on a non-object in /in/k0ev6 on line 31
Process exited with code 255.