Ds\Stack::peek
(PECL ds >= 1.0.0)
Ds\Stack::peek — Returns the value at the top of the stack
Description
Returns the value at the top of the stack, but does not remove it.
Parameters
This function has no parameters.
Return Values
The value at the top of the stack.
Errors/Exceptions
UnderflowException if empty.
Examples
Example #1 Ds\Stack::peek() example
<?php
$stack = new \Ds\Stack();
$stack->push("a");
$stack->push("b");
$stack->push("c");
var_dump($stack->peek());
?>The above example will output something similar to:
string(1) "c"
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