Ds\Stack::peek

(PECL ds >= 1.0.0)

Ds\Stack::peek — Returns the value at the top of the stack.

public mixed Ds\Stack::peek ( void )

Returns the value at the top of the stack, but does not remove it.

Această funcție nu are parametri.

The value at the top of the stack.

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


<?php
$stack = new \Ds\Stack();

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

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

Exemplul de mai sus va afișa ceva similar cu:

string(1) "c"