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<?php class FooBar implements Iterator { function __construct() { echo "Constructing new FooBar\n"; } function __destruct() { echo "Destructing FooBar\n"; } function current () { throw new Exception; } function key () { return 0; } function next () {} function rewind () {} function valid () { return true; } } function foo() { try { $f = new FooBar; yield from $f; } catch (Exception $e) { echo "[foo()] Caught Exception\n"; } } function bar() { echo "Starting bar()\n"; $x = foo(); try { var_dump($x->current()); } catch (Exception $e) { var_dump($x->key()); echo "Caught Exception\n"; } echo "Unsetting \$x\n"; unset($x); echo "Finishing bar()\n"; } bar();
Output for 8.1.0 - 8.1.28, 8.2.0 - 8.2.18, 8.3.0 - 8.3.6
Deprecated: Return type of FooBar::current() should either be compatible with Iterator::current(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/2c5Aq on line 6 Deprecated: Return type of FooBar::next() should either be compatible with Iterator::next(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/2c5Aq on line 8 Deprecated: Return type of FooBar::key() should either be compatible with Iterator::key(): mixed, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/2c5Aq on line 7 Deprecated: Return type of FooBar::valid() should either be compatible with Iterator::valid(): bool, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/2c5Aq on line 10 Deprecated: Return type of FooBar::rewind() should either be compatible with Iterator::rewind(): void, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/2c5Aq on line 9 Starting bar() Constructing new FooBar [foo()] Caught Exception Destructing FooBar NULL Unsetting $x Finishing bar()
Output for 7.0.1 - 7.0.33, 7.1.0 - 7.1.33, 7.2.0 - 7.2.33, 7.3.0 - 7.3.33, 7.4.0 - 7.4.33, 8.0.0 - 8.0.30
Starting bar() Constructing new FooBar [foo()] Caught Exception Destructing FooBar NULL Unsetting $x Finishing bar()
Output for 7.0.0
Starting bar() Constructing new FooBar Destructing FooBar NULL Caught Exception Unsetting $x Finishing bar()
Output for 5.5.0 - 5.5.38, 5.6.0 - 5.6.40
Parse error: syntax error, unexpected '$f' (T_VARIABLE) in /in/2c5Aq on line 16
Process exited with code 255.
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