<?php
$myArray = array(
0,
array(
0,
1,
array(
0,
1,
2,
array(
0,
1,
2,
3,
array("the end")
)
)
)
);
$recursive_array_iterator = new RecursiveArrayIterator($myArray);
iterator_apply($recursive_array_iterator, 'traverseRecursiveArray', array($recursive_array_iterator));
function traverseRecursiveArray($iterator)
{
$i = 0;
while ($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("<pre>" . $myArray . "</pre>");
- Output for 8.0.0 - 8.0.30, 8.1.0 - 8.1.27, 8.2.0 - 8.2.17, 8.3.0 - 8.3.4
- 0 => 0 appended
0 => 0 appended
1 => 1 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
3 => 3 appended
0 => the end appended
Warning: Array to string conversion in /in/2QiA3 on line 51
string(16) "<pre>Array</pre>"
- Output for 5.4.0 - 5.4.45, 5.5.24 - 5.5.35, 5.6.7 - 5.6.28, 7.0.0 - 7.0.20, 7.1.0 - 7.1.10, 7.2.0 - 7.2.33, 7.3.12 - 7.3.31, 7.4.0 - 7.4.33
- 0 => 0 appended
0 => 0 appended
1 => 1 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
3 => 3 appended
0 => the end appended
Notice: Array to string conversion in /in/2QiA3 on line 51
string(16) "<pre>Array</pre>"
- Output for 5.2.0 - 5.2.17, 5.3.0 - 5.3.29, 7.3.32 - 7.3.33
- 0 => 0 appended
0 => 0 appended
1 => 1 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
0 => 0 appended
1 => 1 appended
2 => 2 appended
3 => 3 appended
0 => the end appended
string(16) "<pre>Array</pre>"
- Output for 5.1.0 - 5.1.6
- Fatal error: Call to undefined function iterator_apply() in /in/2QiA3 on line 24
Process exited with code 255. - Output for 5.0.0 - 5.0.5
- Fatal error: Class 'RecursiveArrayIterator' not found in /in/2QiA3 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/2QiA3 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/2QiA3 on line 23
preferences:
214.24 ms | 401 KiB | 308 Q