How to implement object cloning in php-PHP Tutorial-php.cn

How to implement object cloning in php

高洛峰

Release： 2023-03-03 20:04:01

Original

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The example in this article describes how to implement object cloning in PHP. Share it with everyone for your reference. The details are as follows:

<?php
  //定义类staff，其中包括属性id和name
  class staff 
  {
   private $id;
   private $name;
   function setID($id) 
   {
     $this->id = $id;
   }
   function getID() 
   {
     return $this->id;
   }
   function setName($name) 
   {
     $this->name = $name;
   }
   function getName() 
   {
     return $this->name;
   }
  }
  //创建一个新的staff对象并初始化
  $ee1 = new staff();
  $ee1->setID("145");
  $ee1->setName("Simon");
  //克隆一个新的对象
  $ee2 = clone $ee1;
  //重新设置新对象的ID值
  $ee2->setID("146");
  //输出ee1和ee2
  echo "ee1 ID: ".$ee1->getID()."<br>";
  echo "ee1 Name: ".$ee1->getName()."<br>";
  echo "ee2 ID: ".$ee2->getID()."<br>";
  echo "ee2 Name: ".$ee2->getName()."<br>";
?>

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<?php
  //定义类staff，其中包括属性id和name
  class staff 
  {
   private $id;
   private $name;
   function setID($id) 
   {
     $this->id = $id;
   }
   function getID() 
   {
     return $this->id;
   }
   function setName($name) 
   {
     $this->name = $name;
   }
   function getName() 
   {
     return $this->name;
   }
   //这里是__clone函数
   function __clone()
   {
    $this->id = $this->id + 1;
   }
  }
  //创建一个新的staff对象并初始化
  $ee1 = new staff();
  $ee1->setID("145");
  $ee1->setName("Simon");
  //克隆一个新的对象
  $ee2 = clone $ee1;
  //重新设置新对象的ID值
  //$ee2->setID("146");
  //输出ee1和ee2
  echo "ee1 ID: ".$ee1->getID()."<br>";
  echo "ee1 Name: ".$ee1->getName()."<br>";
  echo "ee2 ID: ".$ee2->getID()."<br>";
  echo "ee2 Name: ".$ee2->getName()."<br>";
?>

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

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