3v4l.org

run code in 200+ PHP versions simultaneously
<?php class X { function __construct($id, $gen) { $this->id = $id; $this->gen = $gen; } function __destruct() { echo "__destruct $this->id\n"; var_dump($this->gen->current()); var_dump($this->gen->key()); echo "\n\n"; } } function make($id, $self) { return new X($id, $self); } function gen() { $self = yield (0); echo "After yield 0\n"; $k = make('key', $self); $v = make('value', $self); yield $k => $v; unset($k, $v); echo "After yield X\n"; yield 12; } $a = gen(); var_dump($a->current()); $a->send($a); var_dump($a->current()); $a->next();
based on 8pHII
Output for 7.1.0 - 7.2.13, 7.4.0
int(0) After yield 0 object(X)#3 (2) { ["id"]=> string(5) "value" ["gen"]=> object(Generator)#1 (0) { } } After yield X __destruct value object(X)#3 (2) { ["id"]=> string(5) "value" ["gen"]=> object(Generator)#1 (0) { } } object(X)#2 (2) { ["id"]=> string(3) "key" ["gen"]=> object(Generator)#1 (0) { } } __destruct key *RECURSION* object(X)#2 (2) { ["id"]=> string(3) "key" ["gen"]=> object(Generator)#1 (0) { } }
Output for 7.0.0 - 7.0.33, 7.3.0
int(0) After yield 0 object(X)#3 (2) { ["id"]=> string(5) "value" ["gen"]=> object(Generator)#1 (0) { } } After yield X __destruct value object(X)#3 (2) { ["id"]=> string(5) "value" ["gen"]=> object(Generator)#1 (0) { } } object(X)#2 (2) { ["id"]=> string(3) "key" ["gen"]=> object(Generator)#1 (0) { } } __destruct key
Process exited with code 139.
Output for 5.5.0 - 5.6.38
Parse error: syntax error, unexpected '(' in /in/LUq3k on line 16
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected '$k' (T_VARIABLE) in /in/LUq3k on line 20
Process exited with code 255.