3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php interface IWidget { } class WidgetA implements IWidget { } class WidgetB implements IWidget { } interface IWidgetFactory { function tryCreateWidget($someInput, IWidget &$widget); } class WidgetAFactory implements IWidgetFactory { public function tryCreateWidget($someInput, IWidget &$widget) { if ($someInput < 7) { $widget = new WidgetA(); return true; } return false; } } class WidgetBFactory implements IWidgetFactory { public function tryCreateWidget($someInput, IWidget &$widget) { if ($someInput > 10) { $widget = new WidgetB(); return true; } return false; } } class WidgetFactoryAggregate implements IWidgetFactory { private $widgetFactories = []; function __construct(array $widgetFactories) { $this->widgetFactories = $widgetFactories; } public function tryCreateWidget($someInput, IWidget &$widget) { foreach ($this->widgetFactories as $widgetFactory) { if ($widgetFactory->tryCreateWidget($someInput)) { return true; } } return false; } } $widgetFactory = new WidgetFactoryAggregate([ new WidgetAFactory(), new WidgetBFactory(), ]); foreach ([1, 5, 15, 9] as $someInput) { $widget = null; if ($widgetFactory->tryCreateWidget($someInput, $widget)) { var_dump($widget); continue; } throw new Exception("Failed to create widget for {$someInput}"); }
Output for 7.0.0 - 7.1.0
Fatal error: Uncaught TypeError: Argument 2 passed to WidgetFactoryAggregate::tryCreateWidget() must implement interface IWidget, null given, called in /in/QKvIW on line 82 and defined in /in/QKvIW:63 Stack trace: #0 /in/QKvIW(82): WidgetFactoryAggregate->tryCreateWidget(1, NULL) #1 {main} thrown in /in/QKvIW on line 63
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught TypeError: Argument 2 passed to WidgetFactoryAggregate::tryCreateWidget() must implement interface IWidget, null given in /in/QKvIW:71 Stack trace: #0 /in/QKvIW(82): WidgetFactoryAggregate->tryCreateWidget() #1 {main}
Process exited with code 255.
Output for hhvm-3.10.0
Catchable fatal error: Argument 2 passed to WidgetFactoryAggregate::tryCreateWidget() must implement interface IWidget, null given in /in/QKvIW on line 71
Process exited with code 255.
Output for 5.4.0 - 5.6.28
Catchable fatal error: Argument 2 passed to WidgetFactoryAggregate::tryCreateWidget() must implement interface IWidget, null given, called in /in/QKvIW on line 82 and defined in /in/QKvIW on line 63
Process exited with code 255.
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/QKvIW on line 56
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/QKvIW on line 56
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING in /in/QKvIW 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/QKvIW on line 3
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error in /in/QKvIW on line 3
Process exited with code 255.