php实现单链表的实例代码

代码如下:
<?php

//链表节点
class node {
    public $id; //节点id
    public $name; //节点名称
    public $next; //下一节点
   

    public function __construct($id, $name) {
        $this->id = $id;
        $this->name = $name;
        $this->next = null;
    }
}

//单链表
class singelLinkList {
    private $header; //链表头节点
   

    //构造方法
    public function __construct($id = null, $name = null) {
        $this->header = new node ( $id, $name, null );
    }

    //获取链表长度
    public function getLinkLength() {
        $i = 0;
        $current = $this->header;
        while ( $current->next != null ) {
            $i ++;
            $current = $current->next;
        }
        return $i;
    }

    //添加节点数据
    public function addLink($node) {
        $current = $this->header;
        while ( $current->next != null ) {
            if ($current->next->id > $node->id) {
                break;
            }
            $current = $current->next;
        }
        $node->next = $current->next;
        $current->next = $node;
    }

    //删除链表节点
    public function delLink($id) {
        $current = $this->header;
        $flag = false;
        while ( $current->next != null ) {
            if ($current->next->id == $id) {
                $flag = true;
                break;