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run code in 150+ php & hhvm versions
Bugs & Features
<?php /* * This file is part of the Symfony package. * * (c) Fabien Potencier <fabien@symfony.com> * * For the full copyright and license information, please view the LICENSE * file that was distributed with this source code. */ /** * This class is a hand written simplified version of PHP native `ArrayObject` * class, to show that it behaves differently than the PHP native implementation. */ class CustomArrayObject implements ArrayAccess, IteratorAggregate, Countable, Serializable { private $array; public function __construct(array $array = array()) { $this->array = $array; } public function offsetExists($offset) { echo 'called '; return array_key_exists($offset, $this->array); } public function offsetGet($offset) { return $this->array[$offset]; } public function offsetSet($offset, $value) { if (null === $offset) { $this->array[] = $value; } else { $this->array[$offset] = $value; } } public function offsetUnset($offset) { unset($this->array[$offset]); } public function getIterator() { echo 'iterator created '; return new ArrayIterator($this->array); } public function count() { return count($this->array); } public function serialize() { return serialize($this->array); } public function unserialize($serialized) { $this->array = (array) unserialize((string) $serialized); } } $array = array('foo' => 'bar', 'nulled' => null); $native = new ArrayObject($array); $custom = new CustomArrayObject($array); error_reporting(-1); $a = array_key_exists('missing', $custom); var_dump($a); var_dump(isset($custom['missing']) || array_key_exists('missing', $custom));
Output for 5.1.0 - 7.1.0
bool(false) called bool(false)
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/J9XHb on line 21
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/J9XHb on line 17
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, expecting '{' in /in/J9XHb on line 17
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `'{'' in /in/J9XHb on line 17
Process exited with code 255.