<?php

class Task extends Threaded
{
 public function __construct()
 {
 $this->data = new Threaded();

 // 尝试覆盖 Threaded 类的 Threaded 属性（无效）
 $this->data = new stdClass();
 }
}

var_dump((new Task())->data);

上面的示例将输出类似于以下内容

RuntimeException: Threaded members previously set to Threaded objects are immutable, cannot overwrite data in %s:%d

示例 #2 Volatile 用例

<?php

class Task extends Volatile
{
 public function __construct()
 {
 $this->data = new Threaded();

 // 尝试覆盖 Volatile 类的 Threaded 属性（有效）
 $this->data = new stdClass();
 }
}

var_dump((new Task())->data);

上面的示例将输出类似于以下内容

object(stdClass)#3 (0) {
}

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synnus at gmail dot com ¶

4 年前

<?php

// 仅使用 extends volatile 用于使用数组
// 非常好 

class libvar extends Volatile
{
 private $_adresse = '127.0.0.1';
 private $_port = 10000;
 
 public $socket;
 public $list_socket = array();
 public $list_error = array();
 
 public function __construct(){ }
 
 public function set_list($val) { $ct = count($this->list_socket); $this->list_socket[ $ct ] = $val; return $ct; }
 public function set_socket($val) { $this->socket = $val; return $this->socket; }
 public function set_error($val) { $this->list_error[ count($this->list_error) ] = $val; }
 
 public function unset_list($val) { unset($this->list_error[ $val ]); }

 public function get_socketinlist($val) { return $this->list_socket[$val]; }
 public function get_adresse() { return $this->_adresse; }
 public function get_port() { return $this->_port; }
 public function get_socket() { return $this->socket; }
}

?>

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