php7_7.php

<?php
/**
 * Created by PhpStorm.
 * User: chentao
 * Date: 2020/1/15
 * Time: 4:39 PM
 */

class MyClass1 {
    public $obj1prop;
}
class MyClass2 {
    public $obj2prop;
}


$obj1 = new MyClass1();
$obj1->obj1prop = 1;
$obj2 = new MyClass2();
$obj2->obj2prop = 2;

$serializedObj1 = serialize($obj1);
$serializedObj2 = serialize($obj2);

// 默认行为是接收所有类
// 第二个参数可以忽略
// 如果 allowed_classes 设置为 false, unserialize 会将所有对象转换为 __PHP_Incomplete_Class 对象
$data = unserialize($serializedObj1 , ["allowed_classes" => true]);

// 转换所有对象到 __PHP_Incomplete_Class 对象，只允许 MyClass1 和 MyClass2 转换到 __PHP_Incomplete_Class
$data2 = unserialize($serializedObj2 , ["allowed_classes" => ["MyClass1","MyClass2"]]);

print($data->obj1prop);
print(PHP_EOL);
print($data2->obj2prop.PHP_EOL);