SplDoublyLinkedList::isEmpty

(PHP 5 >= 5.3.0, PHP 7, PHP 8)

SplDoublyLinkedList::isEmpty — Checks whether the doubly linked list is empty

Descrizione

public SplDoublyLinkedList::isEmpty(): bool

Elenco dei parametri

Questa funzione non contiene parametri.

Valori restituiti

Returns whether the doubly linked list is empty.

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User Contributed Notes 1 note

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lincoln dot du dot j at gmail dot com ¶

8 years ago

//isEmpty is a method of SplDoublyLinkedList $obj = new SplDoublyLinkedList();// Check wither linked list is emptyif ($obj->isEmpty()){    $obj->push(2);    $obj->unshift(10);}print_r($obj);//Output like thisSplDoublyLinkedList Object(    [flags:SplDoublyLinkedList:private] => 0    [dllist:SplDoublyLinkedList:private] => Array        (            [0] => 10            [1] => 2        ))

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