Ds\Map::isEmpty

(PECL ds >= 1.0.0)

Ds\Map::isEmpty — Returns whether the map is empty

public function Ds\Map::isEmpty(): bool

Returns whether the map is empty.

This function has no parameters.

Returns true if the map is empty, false otherwise.

Example #1 Ds\Map::isEmpty() example

<?php
$a = new \Ds\Map(["a" => 1, "b" => 2, "c" => 3]);
$b = new \Ds\Map();

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

The above example will output something similar to:

bool(false)
bool(true)