3v4l.org

run code in 150+ php & hhvm versions
Bugs & Features
<?php class Context { private $context = null; private $data = []; public function __construct(Context $context = null) { $this->context = $context; } public function get($name) { if (isset($this->data[$name])) { return $this->data[$name]; } if (isset($this->context)) { return $this->context->get($name); } return null; } public function getAll(array $names) { $data = []; foreach ($names as $name) { $data[$name] = $this->get($name); } return $data; } public function set($name, $value) { $this->data[$name] = $value; } public function wrap() { return new Context($this); } public function call(callable $function) { call_user_func($function, $this); } } (new Context)->call(function(Context $c) { $c->set('foo', 1); $c->set('bar', 2); $c->wrap()->call(function(Context $c) { $c->set('bar', 3); $c->set('qux', 4); $c->wrap()->call(function(Context $c) { $c->set('qux', 5); $c->set('zip', 6); var_dump($c->getAll(['foo', 'bar', 'qux', 'zip'])); }); var_dump($c->getAll(['foo', 'bar', 'qux', 'zip'])); }); var_dump($c->getAll(['foo', 'bar', 'qux', 'zip'])); });
Output for 5.4.0 - 5.6.28, hhvm-3.10.0 - 3.12.0, 7.0.0 - 7.1.0
array(4) { ["foo"]=> int(1) ["bar"]=> int(3) ["qux"]=> int(5) ["zip"]=> int(6) } array(4) { ["foo"]=> int(1) ["bar"]=> int(3) ["qux"]=> int(4) ["zip"]=> NULL } array(4) { ["foo"]=> int(1) ["bar"]=> int(2) ["qux"]=> NULL ["zip"]=> NULL }
Output for 5.1.0 - 5.3.29
Parse error: syntax error, unexpected '[' in /in/JVK8u on line 6
Process exited with code 255.
Output for 5.0.0 - 5.0.5
Parse error: parse error, unexpected '[' in /in/JVK8u on line 6
Process exited with code 255.
Output for 4.4.2 - 4.4.9
Parse error: syntax error, unexpected T_STRING, expecting T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JVK8u on line 5
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 T_OLD_FUNCTION or T_FUNCTION or T_VAR or '}' in /in/JVK8u on line 5
Process exited with code 255.
Output for 4.3.2 - 4.3.4
Parse error: parse error, expecting `T_OLD_FUNCTION' or `T_FUNCTION' or `T_VAR' or `'}'' in /in/JVK8u on line 5
Process exited with code 255.