GoLang Ds\Queue::peek

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GoLang replacement for PHP's Ds\Queue::peek [edit | history]



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PHP Ds\Queue::peek

PHP original manual for Ds\Queue::peek [ show | php.net ]

Ds\Queue::peek

(PECL ds >= 1.0.0)

Ds\Queue::peek — Returns the value at the front of the queue

Description

public mixed Ds\Queue::peek ( void )

Returns the value at the front of the queue, but does not remove it.

Parameters

This function has no parameters.

Return Values

The value at the front of the queue.

Errors/Exceptions

UnderflowException if empty.

Examples

Example #1 Ds\Queue::peek() example

<?php
$queue = new \Ds\Queue();

$queue->push("a");
$queue->push("b");
$queue->push("c");

var_dump($queue->peek());
?>

The above example will output something similar to:

string(1) "a"