RecursiveArrayIterator::getChildrens returns a copy of the children, not a reference:
<?php
$stack = array ("some" => "value",
array ("subsome" => "subvalue", array ("subsubsome" => "subsubvalue")),
"some1" => "value1");
$object = new RecursiveArrayIterator ($stack);
$object->next ();
$second_object = &$object->getChildren ();
$second_object->next ();
$third_object = &$second_object->getChildren ();
$third_object->offsetSet ("subsubsome", "subsubdiferent");
var_dump ($object);
var_dump ($second_object);
var_dump ($third_object);
?>
returns:
object(RecursiveArrayIterator)#1 (1) {
["storage":"ArrayIterator":private]=>
array(3) {
["some"]=>
string(5) "value"
[0]=>
array(2) {
["subsome"]=>
string(8) "subvalue"
[0]=>
array(1) {
["subsubsome"]=>
string(11) "subsubvalue" <--- expected to be changed
}
}
["some1"]=>
string(6) "value1"
}
}
object(RecursiveArrayIterator)#2 (1) {
["storage":"ArrayIterator":private]=>
array(2) {
["subsome"]=>
string(8) "subvalue"
[0]=>
array(1) {
["subsubsome"]=>
string(11) "subsubvalue" <--- expected to be changed
}
}
}
object(RecursiveArrayIterator)#3 (1) {
["storage":"ArrayIterator":private]=>
array(1) {
["subsubsome"]=>
string(14) "subsubdiferent"
}
}
RecursiveArrayIterator::getChildren
(PHP 5 >= 5.1.0, PHP 7, PHP 8)
RecursiveArrayIterator::getChildren — Returns an iterator for the current entry if it is an array or an object
Açıklama
Returns an iterator for the current iterator entry.
Bağımsız Değişkenler
Bu işlevin bağımsız değişkeni yoktur.
Hatalar/İstisnalar
An InvalidArgumentException will be thrown if the current entry does not contain an array or an object.
Örnekler
Örnek 1 RecursiveArrayIterator::getChildren() example
<?php
$fruits = array("a" => "lemon", "b" => "orange", array("a" => "apple", "p" => "pear"));
$iterator = new RecursiveArrayIterator($fruits);
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
// print all children
foreach ($iterator->getChildren() as $key => $value) {
echo $key . ' : ' . $value . "\n";
}
} else {
echo "No children.\n";
}
$iterator->next();
}
?>Yukarıdaki örneğin çıktısı:
No children. No children. a : apple p : pear
Ayrıca Bakınız
- RecursiveArrayIterator::hasChildren() - Returns whether current entry is an array or an object
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User Contributed Notes 1 note
814ckf0x ¶
10 years ago
