@ 2013-11-24T03:50:39Z <?php
class DataContainer implements IteratorAggregate { // create an external Iterator:
protected $data;
public function __construct(array $data) {
$this->data = $data;
}
public function &getIterator() {
foreach ($this->data as &$value) {
yield $value;
}
}
}
$dataContainer = new DataContainer([1, 2, 3]);
foreach ($dataContainer as &$value) {
echo ($value *= -1)," ";
}
// Weird result from neglecting to unset $value ...
echo "\n";
foreach($dataContainer as $value){
echo $value," ";
}
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Output for 8.1.0 - 8.1.27 , 8.2.0 - 8.2.17 , 8.3.0 - 8.3.4 Deprecated: Return type of & DataContainer::getIterator() should either be compatible with IteratorAggregate::getIterator(): Traversable, or the #[\ReturnTypeWillChange] attribute should be used to temporarily suppress the notice in /in/Q0Z1Q on line 9
-1 -2 -3
-1 -2 -2 Output for 5.5.0 - 5.5.36 , 5.6.0 - 5.6.28 , 7.0.0 - 7.0.20 , 7.1.0 - 7.1.33 , 7.2.0 - 7.2.33 , 7.3.0 - 7.3.33 , 7.4.0 - 7.4.33 , 8.0.0 - 8.0.30 -1 -2 -3
-1 -2 -2 Output for 5.4.0 - 5.4.45 Parse error: syntax error, unexpected '$value' (T_VARIABLE) in /in/Q0Z1Q on line 11
Process exited with code 255 . Output for 5.1.0 - 5.1.6 , 5.2.0 - 5.2.17 , 5.3.0 - 5.3.29 Parse error: syntax error, unexpected T_VARIABLE in /in/Q0Z1Q on line 11
Process exited with code 255 . Output for 5.0.0 - 5.0.5 Parse error: parse error, unexpected T_ARRAY, expecting '&' or T_VARIABLE in /in/Q0Z1Q on line 5
Process exited with code 255 . Output for 4.4.2 - 4.4.9 Parse error: syntax error, unexpected T_STRING, expecting '{' in /in/Q0Z1Q on line 2
Process exited with code 255 . Output for 4.3.0 - 4.3.1 , 4.3.5 - 4.3.11 , 4.4.0 - 4.4.1 Parse error: parse error, unexpected T_STRING, expecting '{' in /in/Q0Z1Q on line 2
Process exited with code 255 . Output for 4.3.2 - 4.3.4 Parse error: parse error, expecting `'{'' in /in/Q0Z1Q on line 2
Process exited with code 255 . preferences:dark mode live preview
282.84 ms | 401 KiB | 373 Q