3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface GoAlgorithm { public function go(); } class GoByDrivingAlgorithm implements GoAlgorithm { public function go() { echo "Now I'm driving." .PHP_EOL; } } class GoByFlying implements GoAlgorithm { public function go() { echo "Now I'm flying." . PHP_EOL; } } class GoByFlyingFast implements GoAlgorithm { public function go() { echo "Now I'm flying fast" . PHP_EOL; } } class Vehicle { private $goAlgorithm; public function __construct(GoAlgorithm $goType = null) { parent::__construct(); $this->goAlgorithm = $goType; } public function setModeOfTransportation(GoAlgorithm $goType) { $this->goAlgorithm = $goType; } public function drive() { return $this->goAlgorithm->go(); } } // setter injection $streetRacer = new Vehicle(); $streetRacer->setModeOfTransportation(new GoByDrivingAlgorithm()); $formulaone = new Vehicle(); $formulaone->setModeOfTransportation(new GoByDrivingAlgorithm()); $helicopter = new Vehicle(); $helicopter->setModeOfTransportation(new GoByFlying()); $jets = new Vehicle(); $jets->setModeOfTransportation(new GoByFlyingFast()); $streetRacer->drive(); $formulaone->drive(); $helicopter->drive(); $jets->drive(); // constructor injection $streetRacer = new Vehicle(new GoByDrivingAlgorithm()); $formulaone = new Vehicle(new GoByDrivingAlgorithm()); $helicopter = new Vehicle(new GoByFlying()); $jets = new Vehicle(new GoByFlyingFast()); $streetRacer->drive(); $formulaone->drive(); $helicopter->drive(); $jets->drive();
based on iqOKH
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught Error: Cannot access parent:: when current class scope has no parent in /in/F0kti:37 Stack trace: #0 /in/F0kti(53): Vehicle->__construct() #1 {main} thrown in /in/F0kti on line 37
Process exited with code 255.
Output for 5.1.0 - 5.6.28, hhvm-3.10.0 - 3.12.0
Fatal error: Cannot access parent:: when current class scope has no parent in /in/F0kti on line 37
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Fatal error: Argument 1 must not be null in /in/F0kti on line 36
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/F0kti on line 3
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Parse error: parse error, unexpected T_STRING in /in/F0kti on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/F0kti on line 3
Process exited with code 255.