W3cubDocs

/PHP

Ds\Collection::isEmpty

(PECL ds >= 1.0.0)

Ds\Collection::isEmptyReturns whether the collection is empty

Description

abstract public Ds\Collection::isEmpty ( ) : bool

Returns whether the collection is empty.

Parameters

This function has no parameters.

Return Values

Returns true if the collection is empty, false otherwise.

Examples

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

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

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

The above example will output something similar to:

bool(false)
bool(true)

© 1997–2020 The PHP Documentation Group
Licensed under the Creative Commons Attribution License v3.0 or later.
https://www.php.net/manual/en/ds-collection.isempty.php