PHP code PHP singly linked list implementation code sharing

The example in this article shares the specific code of PHP singly linked list for your reference. The specific content is as follows

<&#63;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);

The above is the entire content of this article. I hope it will be helpful to everyone in implementing PHP singly linked list.

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