PHP | ArrayIterator append() Function

The ArrayIterator::append() function is an inbuilt function in PHP which is used to append an element into an array iterator. Syntax:

void ArrayIterator::append( mixed $value )

Parameters: This function accepts single parameter $value that holds the value that need to be append. Return Value: This function does not return any value. Below programs illustrate the ArrayIterator::append() function in PHP: Program 1:

php

<?php
 
// Declare an ArrayIterator
$arrItr = new ArrayIterator(
    array('G', 'e', 'e', 'k', 's')
);
 
// Append the element into array iterator
$arrItr->append("123");

// Display the elements
while($arrItr->valid()) {
    echo $arrItr->current();
    $arrItr->next();
}
 
?>

Output:

Geeks123

Program 2:

php

<?php
 
// Declare an ArrayIterator
$arrItr = new ArrayIterator(
    array(
        "a" => "Geeks",
        "b" => "for",
        "c" => "Geeks"
    )
);
 
// Append the array element
$arrItr->append("Computer");
$arrItr->append("Science");
$arrItr->append("Portal");
 
// Display the elements
foreach ($arrItr as $key => $val) {
    echo $key . " => " . $val . "\n";
}
 
?>

Output:

a => Geeks
b => for
c => Geeks
0 => Computer
1 => Science
2 => Portal

Reference: https://www.php.net/manual/en/arrayiterator.append.php

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