Ds\Deque::first

(PECL ds >= 1.0.0)

Ds\Deque::first — Returns the first value in the deque

public function Ds\Deque::first(): mixed

Returns the first value in the deque.

This function has no parameters.

The first value in the deque.

Example #1 Ds\Deque::first() example

<?php
$deque = new \Ds\Deque([1, 2, 3]);
var_dump($deque->first());
?>

The above example will output something similar to:

int(1)