PHP串行化与反串行化实例分析_PHP教程

PHP串行化与反串行化实例分析

2021-04-09 16:18EthanQ PHP教程

这篇文章主要介绍了PHP串行化与反串行化,结合实例形式分析了php面向对象程序设计及serialize与unserialize函数进行串行化、反串行化相关使用技巧,需要的朋友可以参考下

本文实例讲述了PHP 串行化与反串行化。分享给大家供大家参考，具体如下：

对象也是一种在内存中存储的数据类型，他的寿命通常随着生成该对象的程序的终止而终止。有时候可能需要把对象的状态保存下来，需要时再将其回复。串行化是把每个对象转化为二进制字符串。

									<?php

									class Person {

									  var $name;

									  var $sex;

									  var $age;

									  function __construct($name = "", $sex = "男", $age = 22) {

									    $this->name = $name;

									    $this->sex = $sex;

									    $this->age = $age;

									  }

									  function say() {

									    echo $this->name . "在说话<br/>";

									  }

									  function run() {

									    echo "在走路·<br/>";

									  }

									  //串行化的时候自动调用，成员$sex被忽略，只串行$name,$age

									  function __sleep() {

									    $arr = array("name","age");

									    return $arr;

									  }

									  //反串行化时自动调用

									  function __wakeup() {

									    $this->age = 33;

									  }

									}

									class Student extends Person {

									  var $school;

									  function __construct($name = "", $sex = "男", $age = 22,$school="") {

									    parent::__construct($name,$sex,$age);

									    $this->school = $school;

									  }

									  function study() {

									    echo $this->name."正在".$this->school."学习<br/>";

									  }

									}

									class Teacher extends Student {

									  var $wage;

									  function teaching() {

									    echo $this->name."正在".$this->school."教学，每月工资为".$this->wage."<br/>";

									  }

									  //如果调用了不存在的方法，将会自动调用__call()，不会报错

									  function __call($functionName,$args) {

									    echo "函数名：".$functionName;

									    print_r($args);

									    echo "<br/>";

									  }

									}

									$teacher1 = new Teacher("kaifu","男",22);

									$teacher1->school = "edu";

									$teacher1->wage = 4000;

									$teacher1->say();

									$teacher1->study();

									$teacher1->teaching();

									$teacher1->hello(1,2,3);

									?>

									<?php

									  require_once 'Person.php';

									  $teacher = new Teacher("tom","男",22);

									  $teacher_str = serialize($teacher);

									  file_put_contents("file.txt", $teacher_str);

									  //反串行化

									  $objStr = file_get_contents("file.txt");

									  $t = unserialize($objStr);

									  echo $t->age;

									?>