mirror of
https://github.com/php/php-src.git
synced 2026-04-04 22:52:40 +02:00
ff19ec2df3
Userland classes that implement Traversable must do so either through Iterator or IteratorAggregate. The same requirement does not exist for internal classes: They can implement the internal get_iterator mechanism, without exposing either the Iterator or IteratorAggregate APIs. This makes them usable in get_iterator(), but incompatible with any Iterator based APIs. A lot of internal classes do this, because exposing the userland APIs is simply a lot of work. This patch alleviates this issue by providing a generic InternalIterator class, which acts as an adapater between get_iterator and Iterator, and can be easily used by many internal classes. At the same time, we extend the requirement that Traversable implies Iterator or IteratorAggregate to internal classes as well. Closes GH-5216.
89 lines
1.6 KiB
PHP
89 lines
1.6 KiB
PHP
--TEST--
|
|
DatePeriod can be used as an IteratorAggregate
|
|
--FILE--
|
|
<?php
|
|
|
|
$period = new DatePeriod('R2/2012-07-01T00:00:00Z/P7D');
|
|
foreach ($period as $i => $date) {
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
echo "\n";
|
|
foreach ($period->getIterator() as $i => $date) {
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
echo "\n";
|
|
$iter = $period->getIterator();
|
|
for (; $iter->valid(); $iter->next()) {
|
|
$i = $iter->key();
|
|
$date = $iter->current();
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
echo "\n";
|
|
$iter->rewind();
|
|
for (; $iter->valid(); $iter->next()) {
|
|
$i = $iter->key();
|
|
$date = $iter->current();
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
echo "\n";
|
|
foreach (new IteratorIterator($period) as $i => $date) {
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
// Extension that does not overwrite getIterator().
|
|
class MyDatePeriod1 extends DatePeriod {
|
|
}
|
|
|
|
echo "\n";
|
|
$period = new MyDatePeriod1('R2/2012-07-01T00:00:00Z/P7D');
|
|
foreach ($period as $i => $date) {
|
|
echo "$i: ", $date->format('Y-m-d'), "\n";
|
|
}
|
|
|
|
// Extension that does overwrite getIterator().
|
|
class MyDatePeriod2 extends DatePeriod {
|
|
public function getIterator(): Iterator {
|
|
return new ArrayIterator([1, 2, 3]);
|
|
}
|
|
}
|
|
|
|
echo "\n";
|
|
$period = new MyDatePeriod2('R2/2012-07-01T00:00:00Z/P7D');
|
|
foreach ($period as $i => $notDate) {
|
|
echo "$i: $notDate\n";
|
|
}
|
|
|
|
?>
|
|
--EXPECT--
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 2012-07-01
|
|
1: 2012-07-08
|
|
2: 2012-07-15
|
|
|
|
0: 1
|
|
1: 2
|
|
2: 3
|