PHP | AppendIterator next() Function

The AppendIterator::next() function is an inbuilt function in PHP which is used to move the element into the next element.

Syntax:

void AppendIterator::next( void )

Parameters: This function does not accept any parameters.

Return Value: This function does not return any value.

Below programs illustrate the AppendIterator::next() function in PHP:



Program 1:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
   
// Declare an ArrayIterator
$arr1 = new ArrayIterator(array('G', 'e', 'e', 'k', 's'));
   
// Create a new AppendIterator
$itr = new AppendIterator;
   
// Append the ArrayIterator element
$itr->append($arr1);
   
// Display the current element of iterator
var_dump($itr->current());
   
// Use AppendIterator::next() function to
// move into next element
$itr->next();
   
// Display the current element of iterator
var_dump($itr->current());
   
?>

chevron_right


Output:

string(1) "G"
string(1) "e"

Program 2:

filter_none

edit
close

play_arrow

link
brightness_4
code

<?php
   
// Declare an ArrayIterator
$arr1 = new ArrayIterator(
    array(
        "a" => "Geeks",
        "b" => "for",
        "c" => "Geeks"
    )
);
   
$arr2 = new ArrayIterator(
    array(
        "x" => "Computer",
        "y" => "Science",
        "z" => "Portal"
    )
);
   
// Create a new AppendIterator
$itr = new AppendIterator;
$itr->append($arr1);
$itr->append($arr2);
   
$itr->rewind();
   
while ($itr->valid()) {
    echo "ArrayIterator Key: " . $itr->key() .
    "  ArrayIterator Value: " . $itr->current() . "\n";
       
    $itr->next();
}
   
?>

chevron_right


Output:

ArrayIterator Key: a  ArrayIterator Value: Geeks
ArrayIterator Key: b  ArrayIterator Value: for
ArrayIterator Key: c  ArrayIterator Value: Geeks
ArrayIterator Key: x  ArrayIterator Value: Computer
ArrayIterator Key: y  ArrayIterator Value: Science
ArrayIterator Key: z  ArrayIterator Value: Portal

Reference: https://www.php.net/manual/en/appenditerator.next.php




My Personal Notes arrow_drop_up

Check out this Author's contributed articles.

If you like GeeksforGeeks and would like to contribute, you can also write an article using contribute.geeksforgeeks.org or mail your article to contribute@geeksforgeeks.org. See your article appearing on the GeeksforGeeks main page and help other Geeks.

Please Improve this article if you find anything incorrect by clicking on the "Improve Article" button below.


Article Tags :
Practice Tags :


Be the First to upvote.


Please write to us at contribute@geeksforgeeks.org to report any issue with the above content.