(PECL ds >= 1.0.0)
Ds\Stack::peek — Returns the value at the top of the stack
Returns the value at the top of the stack, but does not remove it.
Questa funzione non contiene parametri.
The value at the top of the stack.
UnderflowException if empty.
Example #1 Ds\Stack::peek() example
<?php
$stack = new \Ds\Stack();
$stack->push("a");
$stack->push("b");
$stack->push("c");
var_dump($stack->peek());
?>Il precedente esempio visualizzerà qualcosa simile a:
string(1) "c"