yield_by_reference.phpt [plain text]
--TEST--
Generators can yield by-reference
--FILE--
<?php
function &iter(array &$array) {
foreach ($array as $key => &$value) {
yield $key => $value;
}
}
$array = [1, 2, 3];
$iter = iter($array);
foreach ($iter as &$value) {
$value *= -1;
}
var_dump($array);
$array = [1, 2, 3];
foreach (iter($array) as &$value) {
$value *= -1;
}
var_dump($array);
?>
--EXPECT--
array(3) {
[0]=>
int(-1)
[1]=>
int(-2)
[2]=>
&int(-3)
}
array(3) {
[0]=>
int(-1)
[1]=>
int(-2)
[2]=>
&int(-3)
}