SplDoublyLinkedList::bottom
(PHP 5 >= 5.3.0, PHP 7, PHP 8)
SplDoublyLinkedList::bottom — 双方向リンクリストの最初のノードを取得する
説明
パラメータ
この関数にはパラメータはありません。
戻り値
最初のノードの値を返します。
エラー / 例外
データが空のときは RuntimeException をスローします。
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User Contributed Notes 2 notes
tstirrat at gmail dot com ¶
10 years ago
A note on top() and bottom():
Picture the doubly-linked list (or queue) in the same way that you would a stack.
Say you started with an empty queue, and added five values:
$myList = new SplDoublyLinkedList
$mylist->push(1)
$mylist->push(2)
$mylist->push(3)
$mylist->push(4)
$mylist->push(5)
$mylist->top()
-> 5
$mylist->bottom()
-> 1
rakesh dot mishra at gmail dot com ¶
13 years ago
<?php
/*
* Examples of DoublyLinkedList
*/
$obj = new SplDoublyLinkedList();
// Check wither linked list is empty
if ($obj->isEmpty())
{
echo "Adding nodes to Linked List<br>";
$obj->push(2);
$obj->push(3);
echo "Adding the node at beginning of doubly linked list <br>";
$obj->unshift(10);
}
echo "<br>Our Linked List:";
print_r($obj);
echo "<br>Pick the node from beginning of doubly linked list";
echo $obj->bottom();
?>
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