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run code in 200+ php & hhvm versions
Bugs & Features
<?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 gen() { $self = yield (0); echo "After yield 0\n"; yield new X('key', $self) => new X('value', $self); echo "After yield X\n"; yield 12; } $a = gen(); $a->next(); var_dump($a->current()); $a->send($a); var_dump($a->current()); $a->next();
Output for 7.0.0 - 7.2.0
After yield 0 object(X)#3 (2) { ["id"]=> string(5) "value" ["gen"]=> NULL } After yield X __destruct value __destruct key Fatal error: Uncaught Error: Call to a member function current() on null in /in/kFjqt:7 Stack trace: #0 /in/kFjqt(18): X->__destruct() #1 [internal function]: gen() #2 /in/kFjqt(24): Generator->send(Object(Generator)) #3 {main} Next Error: Call to a member function current() on null in /in/kFjqt:7 Stack trace: #0 /in/kFjqt(18): X->__destruct() #1 [internal function]: gen() #2 /in/kFjqt(24): Generator->send(Object(Generator)) #3 {main} thrown in /in/kFjqt on line 7
Process exited with code 255.
Output for 5.5.24 - 5.6.28
Parse error: syntax error, unexpected '(' in /in/kFjqt on line 14
Process exited with code 255.
Output for 5.4.0 - 5.4.45
Parse error: syntax error, unexpected 'new' (T_NEW) in /in/kFjqt on line 16
Process exited with code 255.
Output for 5.3.19 - 5.3.29
Parse error: syntax error, unexpected T_NEW in /in/kFjqt on line 16
Process exited with code 255.