Ds\Deque::first

(PECL ds >= 1.0.0)

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

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

Returns the first value in the deque.

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The first value in the deque.

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UnderflowException if empty.

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

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

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int(1)