Stack
PHP Manual

Ds\Stack::isEmpty

Returns whether the stack is empty

Description

public bool Ds\Stack::isEmpty ( void )

Returns whether the stack is empty.

Parameters

This function has no parameters.

Return Values

Returns TRUE if the stack is empty, FALSE otherwise.

Examples

Example #1 Ds\Stack::isEmpty example

<?php
$a = new \Ds\Stack([1, 2, 3]);
$b = new \Ds\Stack();

var_dump($a->isEmpty());
var_dump($b->isEmpty());
?>

The above example will output something similar to:

bool(false)
bool(true)