Ds\Stack::peek
(PECL ds >= 1.0.0)
Ds\Stack::peek — Returns the value at the top of the stack
Descrierea
Returns the value at the top of the stack, but does not remove it.
Parametri
Această funcție nu are parametri.
Valorile întoarse
The value at the top of the stack.
Erori/Excepții
UnderflowException if empty.
Exemple
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"
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