3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class GenericCollection extends \SplDoublyLinkedList { private $className; public function __construct($className, $data = []) { if (!class_exists($className)) { throw new \LogicException('Invalid class name: ' . $className); } $this->className = $className; $this->items = new \SplDoublyLinkedList; foreach ($data as $item) { $this->push($item); } } private function checkItemIsInstanceOfCorrectClass($item) { if (!$item instanceof $this->className) { throw new \LogicException('Items in this collection must be instances of ' . $this->className); } } public function getClassName() { return $this->className; } public function add($item) { $this->checkItemIsInstanceOfCorrectClass($item); parent::add($item); } public function push($item) { $this->checkItemIsInstanceOfCorrectClass($item); parent::push($item); } public function unshift($item) { $this->checkItemIsInstanceOfCorrectClass($item); parent::unshift($item); } public function offsetSet($offset, $item) { $this->checkItemIsInstanceOfCorrectClass($item); parent::offsetSet($offset, $item); } } class Foo {} class Bar {} $col = new GenericCollection(Foo::class, [new Foo, new Foo]); $col->push(new Foo); $col[] = new Foo; $col[18] = new Foo; foreach ($col as $foo) { var_dump($foo); } $col->push(new Bar);
based on 7V9OR
Output for 7.0.0 - 7.1.0
Warning: Declaration of GenericCollection::add($item) should be compatible with SplDoublyLinkedList::add($index, $newval) in /in/MB9iZ on line 56 Fatal error: Uncaught OutOfRangeException: Offset invalid or out of range in /in/MB9iZ:54 Stack trace: #0 /in/MB9iZ(54): SplDoublyLinkedList->offsetSet(18, Object(Foo)) #1 /in/MB9iZ(64): GenericCollection->offsetSet(18, Object(Foo)) #2 {main} thrown in /in/MB9iZ on line 54
Process exited with code 255.
Output for hhvm-3.12.0
Fatal error: Uncaught exception 'OutOfRangeException' with message 'Offset invalid or out of range' in /in/MB9iZ:54 Stack trace: #0 /in/MB9iZ(54): SplDoublyLinkedList->offsetSet() #1 /in/MB9iZ(64): GenericCollection->offsetSet() #2 {main}
Process exited with code 255.
Output for hhvm-3.10.0

Process exited with code 153.
Output for 5.5.24 - 5.6.28
Strict Standards: Declaration of GenericCollection::add() should be compatible with SplDoublyLinkedList::add($index, $newval) in /in/MB9iZ on line 56 Fatal error: Uncaught exception 'OutOfRangeException' with message 'Offset invalid or out of range' in /in/MB9iZ:54 Stack trace: #0 /in/MB9iZ(54): SplDoublyLinkedList->offsetSet(18, Object(Foo)) #1 /in/MB9iZ(64): GenericCollection->offsetSet(18, Object(Foo)) #2 {main} thrown in /in/MB9iZ on line 54
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'class' (T_CLASS), expecting identifier (T_STRING) or variable (T_VARIABLE) or '{' or '$' in /in/MB9iZ on line 61
Process exited with code 255.
Output for 5.3.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/MB9iZ on line 7
Process exited with code 255.
Output for 5.1.0 - 5.2.17
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MB9iZ on line 3 Parse error: syntax error, unexpected '[' in /in/MB9iZ on line 7
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MB9iZ on line 3 Parse error: parse error, unexpected '[' in /in/MB9iZ on line 7
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MB9iZ on line 3 Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MB9iZ on line 5
Process exited with code 255.
Output for 4.3.0 - 4.3.1, 4.3.5 - 4.4.1
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MB9iZ on line 3 Parse error: parse error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/MB9iZ on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Warning: Unexpected character in input: '\' (ASCII=92) state=1 in /in/MB9iZ on line 3 Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/MB9iZ on line 5
Process exited with code 255.