php单链表实现代码分享

本文实例为大家分享了php单链表的具体代码，供大家参考，具体内容如下

    <?php
    /**
     * 单链表
     */ 
    class Demo
    {
      private $id;
      public $name;
      public $next;

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

      static public function show ($head)
      {
        $cur = $head;
        while ($cur->next) {
          echo $cur->next->id,'###',$cur->next->name,'<br />';
          $cur = $cur->next;
        }
        echo '<hr />';
      }

      //尾插法
      static public function push ($head, $node)
      {
        $cur = $head;
        while (NULL != $cur->next) {
          $cur = $cur->next;
        }
        $cur->next = $node;
        return $head;
      }

      static public function insert($head, $node)
      {
        $cur = $head;
        while (NULL != $cur->next) {
          if ($cur->next->id > $node->id) {
            break;
          }
          $cur = $cur->next;
        }
        $node->next = $cur->next;
        $cur->next = $node;
        return $head;
      }

      static public function edit($head, $node)
      {
        $cur = $head;
        while (NULL != $cur->next) {
          if ($cur->next->id == $node->id) {
            break;
          }
          $cur = $cur->next;
        }
        $cur->next->name = $node->name;
        return $head;    
      }

      static public function pop ($head, $node)
      {
        $cur = $head;
        while (NULL != $cur->next) {
          if ($cur->next == $node) {
            break;
          }
          $cur = $cur->next;
        }
        $cur->next = $node->next;
        return $head;      
      }
    }

    $team = new Demo();
    $node1 = new Demo(1, '唐三藏');
    Demo::push($team, $node1);
    $node1->name = '唐僧';
    Demo::show($team);

    // Demo::show($team);
    $node2 = new Demo(2, '孙悟空');
    Demo::insert($team, $node2);
    // Demo::show($team);
    $node3 = new Demo(5, '白龙马');
    Demo::push($team, $node3);
    // Demo::show($team);
    $node4 = new Demo(3, '猪八戒');
    Demo::insert($team, $node4);
    // Demo::show($team);
    $node5 = new Demo(4, '沙和尚');
    Demo::insert($team, $node5);
    // Demo::show($team);
    $node4->name = '猪悟能';//php对象传引用，所以Demo::edit没有必要
    // unset($node4);
    // $node4 = new Demo(3, '猪悟能');
    // Demo::edit($team, $node4);
    Demo::pop($team, $node1);

    Demo::show($team);

以上就是本文的全部内容，希望对大家实现php单链表有所帮助。