PHP linked list usage example analysis, PHP usage example analysis_PHP tutorial

Example analysis of php linked list usage, php usage example analysis

The examples in this article describe the use of php linked list. Share it with everyone for your reference. The details are 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.

<&#63;php
/**
 * @author MzXy
 * @copyright 2011
 * @param PHP链表
 */
/**
*
*节点类
*/
class Node
{
  private $Data;//节点数据
  private $Next;//下一节点
  public function setData($value){
    $this->Data=$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);   
  }
}
&#63;>

I hope this article will be helpful to everyone’s PHP programming design.

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