PHP creates linked lists and adds, deletes, updates and traverses linked list nodes-PHP Tutorial-php.cn

This article mainly introduces PHP to create a linked list and the addition, deletion, update and traversal of linked list nodes. Interested friends can refer to it. I hope it will be helpful to everyone.

The examples in this article describe the usage of PHP linked lists, as follows:

Here is a brief introduction to the basic usage of PHP linked lists, including the creation, traversal, and update of linked list nodes.

Data=$value; } public function setNext($value){ $this->Next=$value; } public function getData(){ return $this->Data; } public function getNext(){ return $this->Next; } public function __construct($data,$next){ $this->setData($data); $this->setNext($next); } }//功能类 class LinkList { private $header;//头节点 private $size;//长度 public function getSize(){ $i=0; $node=$this->header; while($node->getNext()!=null) { $i++; $node=$node->getNext(); } return $i; } public function setHeader($value){ $this->header=$value; } public function getHeader(){ return $this->header; } public function __construct(){ header("content-type:text/html; charset=utf-8"); $this->setHeader(new Node(null,null)); } /** *@author MzXy *@param $data--要添加节点的数据 * */ public function add($data) { $node=$this->header; while($node->getNext()!=null) { $node=$node->getNext(); } $node->setNext(new Node($data,null)); } /** *@author MzXy *@param $data--要移除节点的数据 * */ public function removeAt($data) { $node=$this->header; while($node->getData()!=$data) { $node=$node->getNext(); } $node->setNext($node->getNext()); $node->setData($node->getNext()->getData()); } /** *@author MzXy *@param 遍历 * */ public function get() { $node=$this->header; if($node->getNext()==null){ print("数据集为空!"); return; } while($node->getNext()!=null) { print($node->getNext()->getData()); if($node->getNext()->getNext()==null){break;} $node=$node->getNext(); } } /** *@author MzXy *@param $data--要访问的节点的数据 * @param 此方法只是演示不具有实际意义 * */ public function getAt($data) { $node=$this->header->getNext(); if($node->getNext()==null){ print("数据集为空!"); return; } while($node->getData()!=$data) { if($node->getNext()==null){break;} $node=$node->getNext(); } return $node->getData(); } /** *@author MzXy *@param $value--需要更新的节点的原数据 --$initial---更新后的数据 * */ public function update($initial,$value) { $node=$this->header->getNext(); if($node->getNext()==null){ print("数据集为空!"); return; } while($node->getData()!=$data) { if($node->getNext()==null){break;} $node=$node->getNext(); } $node->setData($initial); } } ?>

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