Example analysis of php linked list usage-PHP Tutorial-php.cn

Example analysis of php linked list usage

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Release： 2016-07-25 08:44:54

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The example in this article describes the usage 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.

/**
* @author MzXy
* @param PHP linked list
*/
/**
*
*Node class
*/
class Node
{
private $Data;//Node data
private $Next;//Next Node
public function setData($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);
}
}//Function class
class LinkList
{
private $header;//Header node
private $size;//Length
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 $data--the data of the node to be added
*
*/
public function add($data)
{
$node=$this->header;
while($node->getNext()!=null)
{
$node= $node->getNext();
}
$node->setNext(new Node($data,null));
}
/**
*@author MzXy
*@param $data--the data of the node to be removed
*
*/
public function removeAt($data)
{
$node=$this->header;
while($node->getData()!=$data)
{
$node=$node->getNext();
}
$node-> setNext($node->getNext());
$node->setData($node->getNext()->getData());
}
/**
*@author MzXy
*@param traverse
*
*/
public function get()
{
$node=$this->header;
if($node->getNext()==null){
print("The data set is empty!");
return;
}
while($node->getNext()!=null)
{
print($node->getNext()->getData());
if($node->getNext()->getNext ()==null){break;}
$node=$node->getNext();
}
}
/**
*@author MzXy
*@param $data--the data of the node to be accessed
* @param This method is just for demonstration and has no practical significance
*
*/
public function getAt($data)
{
$node= $this->header->getNext();
if($node->getNext()==null){
print("The data set is empty!");
return;
}
while($ node->getData()!=$data)
{
if($node->getNext()==null){break;}
$node=$node->getNext();
}
return $node->getData();
}
/**
*@author MzXy
*@param $value--the original data of the node that needs to be updated --$initial---the updated data
*
*/
public function update($initial,$value)
{
$node=$this->header->getNext();
if($node->getNext()==null){
print("The data set is empty!");
return;
}
while($node->getData()!=$data)
{
if($node->getNext()==null){break;}
$node=$node->getNext();
}
$node->setData($initial);
}
}
?>

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

Linked list, php