PHP | ArrayIterator seek() Function

The ArrayIterator::seek() function is an inbuilt function in PHP which is used to seek the position of an array iterator.

Syntax:

void ArrayIterator::seek( int $position )

Parameters: This function accepts single parameter $position which holds the position to seek.

Return Value: This function does not return any value.

Below programs illustrate the ArrayIterator::seek() function in PHP:

Program 1:

<?php

// Declare an ArrayIterator
$arrItr = new ArrayIterator(
    array(
        "a" => 4,
        "b" => 2,
        "g" => 8,
        "d" => 6,
        "e" => 1,
        "f" => 9
    )
);

// Seek the position
$arrItr->seek(5);

// Display the element
echo $arrItr->current();

?>

Output:

9

Program 2:

<?php

// Declare an ArrayIterator
$arrItr = new ArrayIterator(
    array(
        "b" => "for",
        "a" => "Geeks",
        "e" => "Science",
        "c" => "Geeks",
        "f" => "Portal",
        "d" => "Computer"
    )
);

// Check the validity of ArrayIterator
if($arrItr->valid()) {

    // Seek the position
    $arrItr->seek(3);

    // Display the element
    echo $arrItr->current();
}

?>

Output:

Geeks

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