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)
RecursiveArrayIterator::getChildren — Returns an iterator for the current entry if it is an array or an object
Descrierea
Returns an iterator for the current iterator entry.
Parametri
Această funcție nu are parametri.
Valorile întoarse
An iterator for the current entry, if it is an array or object.
Erori/Excepții
An InvalidArgumentException will be thrown if the current entry does not contain an array or an object.
Exemple
Example #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();
}
?>
Exemplul de mai sus va afișa:
No children. No children. a : apple p : pear
A se vedea și
- 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
