<?php
$myArray = array(
"a",
array(
"a",
"b",
array(
"a",
"b",
"c",
array(
"a",
"b",
"c",
"d",
array("the end")
)
)
)
);
$recursive_array_iterator = new RecursiveArrayIterator($myArray);
iterator_apply($recursive_array_iterator, 'traverseRecursiveArray', array($recursive_array_iterator));
function traverseRecursiveArray($iterator)
{
while ($iterator->valid()) {
if ($iterator->hasChildren()) {
traverseRecursiveArray($iterator->getChildren());
} else {
$iterator->offsetSet($iterator->key(), manipulate($iterator->current()));
echo $iterator->key() . ' => ' . $iterator->current() . PHP_EOL;
}
$iterator->next();
}
}
function manipulate($string)
{
$string .= " appended";
return $string;
}
var_dump($myArray);
- Output for 5.2.4 - 5.2.17, 5.3.0 - 5.3.29, 5.4.0 - 5.4.45, 5.5.0 - 5.5.38, 5.6.0 - 5.6.40, 7.0.0 - 7.0.33, 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, 8.1.0 - 8.1.30, 8.2.0 - 8.2.25, 8.3.0 - 8.3.14, 8.4.1
- 0 => a appended
0 => a appended
1 => b appended
0 => a appended
1 => b appended
2 => c appended
0 => a appended
1 => b appended
2 => c appended
3 => d appended
0 => the end appended
array(2) {
[0]=>
string(1) "a"
[1]=>
array(3) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
array(4) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[3]=>
array(5) {
[0]=>
string(1) "a"
[1]=>
string(1) "b"
[2]=>
string(1) "c"
[3]=>
string(1) "d"
[4]=>
array(1) {
[0]=>
string(7) "the end"
}
}
}
}
}
- Output for 5.2.0 - 5.2.3
- 0 => a appended
0 => a appended
1 => b appended
0 => a appended
1 => b appended
2 => c appended
0 => a appended
1 => b appended
2 => c appended
3 => d appended
0 => the end appended
array(2) {
[0]=>
string(10) "a appended"
[1]=>
array(3) {
[0]=>
string(10) "a appended"
[1]=>
string(10) "b appended"
[2]=>
array(4) {
[0]=>
string(10) "a appended"
[1]=>
string(10) "b appended"
[2]=>
string(10) "c appended"
[3]=>
array(5) {
[0]=>
string(10) "a appended"
[1]=>
string(10) "b appended"
[2]=>
string(10) "c appended"
[3]=>
string(10) "d appended"
[4]=>
array(1) {
[0]=>
string(16) "the end appended"
}
}
}
}
}
- Output for 5.1.0 - 5.1.6
- Fatal error: Call to undefined function iterator_apply() in /in/qSrZ8 on line 24
Process exited with code 255. - Output for 5.0.0 - 5.0.5
- Fatal error: Class 'RecursiveArrayIterator' not found in /in/qSrZ8 on line 23
Process exited with code 255. - Output for 4.3.2 - 4.3.11, 4.4.0 - 4.4.9
- Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/qSrZ8 on line 23
Process exited with code 255. - Output for 4.3.0 - 4.3.1
- Fatal error: Cannot instantiate non-existent class: recursivearrayiterator in /in/qSrZ8 on line 23
preferences:
74.18 ms | 412 KiB | 5 Q