PHP | Ds\Deque remove() Function

The Ds\Deque::remove() function is an inbuilt function in PHP which is used to remove and return the index value.

Syntax:

public Ds\Deque::remove( $index ) : mixed

Parameters: This function accepts single parameter $index which holds the index of Deque for which the element is to be returned and removed.

Return Value: This function returns and remove the element at given index in the Deque.

Below programs illustrate the Ds\Deque::remove() function in PHP:

Program 1:

<?php

// Declare a deque
$deck = new \Ds\Deque([10, 20, 30, 40, 50, 60]);

echo("Elements of Deque\n");

// Display the Deque elements
print_r($deck);

echo("\nElement at index 2: ");

// Use remove() function to remove the
// element at index 2 and return it
print_r($deck->remove(2));

?>

Output:

Elements of Deque
Ds\Deque Object
(
    [0] => 10
    [1] => 20
    [2] => 30
    [3] => 40
    [4] => 50
    [5] => 60
)

Element at index 2: 30

Program 2:

<?php

// Declare a deque
$deck = new \Ds\Deque(["geeks", "for", "geeks"]);

echo("Elements of Deque\n");

// Display the Deque elements
print_r($deck);

echo("\nElement at index 1: ");

// Use remove() function to remove the
// element at index 2 and return it
print_r($deck->remove(1));

?>

Output:

Elements of Deque
Ds\Deque Object
(
    [0] => geeks
    [1] => for
    [2] => geeks
)

Element at index 1: for

Reference: http://php.net/manual/en/ds-deque.remove.php