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Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 284 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

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Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 5437 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

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Notice (8): unserialize() [<a href='https://secure.php.net/function.unserialize'>function.unserialize</a>]: Error at offset 12268 of 12277 bytes [APP/Controller/NewsController.php, line 5571]

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Notice (8): SplFileObject::fwrite() [<a href='https://secure.php.net/splfileobject.fwrite'>splfileobject.fwrite</a>]: Write of 822 bytes failed with errno=28 No space left on device [CORE/src/Cache/Engine/FileEngine.php, line 141]

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Warning (2): Trying to access array offset on value of type null [APP/Controller/NewsController.php, line 3613]

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php初始化对象和析构函数的简单实例 - 站长搜索
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php初始化对象和析构函数的简单实例

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">
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2014-12-14 21:06:26 转载来源: 网络整理/侵权必删

本文为大家讲解的是php初始化对象和析构函数的简单实例,感兴趣的同学参考下. <?php  /**********************************************  *  __construct  对象初始化函数使用  *  destruct      析构函数的使用  *  $this         关键字的使用($this关键字是用来访问当前对象中的对象属性和对象 *        方法的系统变量)  *   **********************************************/  header("Content-Type:text/html;charset=

本文为大家讲解的是php初始化对象析构函数简单实例,感兴趣的同学参考下.


<?php
 /**********************************************
 *  __construct  对象初始化函数使用
 *  destruct      析构函数的使用
 *  $this         关键字的使用($this关键字是用来访问当前对象中的对象属性和对象 *        方法的系统变量)
 * 
 **********************************************/
 header("Content-Type:text/html;charset=UTF-8");
 class mypc{
  public $name;
  public $type;

  function __construct($name='',$type=''){ //初始化对象,将初始化值放在括号内
   $this->name=$name;
   $this->type=$type;

  }
  function vod(){
   return $this->name.$this->type.'播放电影';
  }
  function game(){
   return $this->name.$this->type.'玩游戏';
  }
  /************************
  * 当对象内部的操作执行完毕的时候,
  * __destruct()被调用,
  * 然后对象所使用的内存被释放出来。规则:后进先出
  **************************/
  function __destruct(){
   echo "<br>==============".$this->name;
  }
 }

 $pc1 = new mypc('家用电脑','台式机');
 echo $pc1->vod()."<br>";
 //当$pc1=null;的时候是当前实例操作完成后直接释放出对象
 $pic2 = new mypc('公司电脑','笔记本');
 echo $pic2->game();

标签: php 初始化 对象 析构 函数 简单 实例


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