The __PHP_Incomplete_Class class

The __PHP_Incomplete_Class class

Created by 
when trying to unserialize an undefined class
or a class that is not listed in the 
of 's  array.

unserialize``allowed_classes``unserialize``options

Prior to PHP 7.2.0, using  on the
 class would return false.
As of PHP 7.2.0, true will be returned.

is_object``__PHP_Incomplete_Class

__PHP_Incomplete_Class This class has no default properties or methods. When created by , in addition to all unserialized properties and values the object will have a property which will contain the name of the unserialized class. unserialize``__PHP_Incomplete_Class_Name

**Voorbeeld: Created by **

<?php

class MyClass
{
    public string $property = "myValue";
}

$myObject = new MyClass;

$foo = serialize($myObject);

// unserializes all objects into __PHP_Incomplete_Class objects
$disallowed = unserialize($foo, ["allowed_classes" => false]);

var_dump($disallowed);

// unserializes all objects into __PHP_Incomplete_Class objects except those of MyClass2 and MyClass3
$disallowed2 = unserialize($foo, ["allowed_classes" => ["MyClass2", "MyClass3"]]);

var_dump($disallowed2);

// unserializes undefined class into __PHP_Incomplete_Class object
$undefinedClass = unserialize('O:16:"MyUndefinedClass":0:{}');

var_dump($undefinedClass);

object(__PHP_Incomplete_Class)#2 (2) {
  ["__PHP_Incomplete_Class_Name"]=>
  string(7) "MyClass"
  ["property"]=>
  string(7) "myValue"
}
object(__PHP_Incomplete_Class)#3 (2) {
  ["__PHP_Incomplete_Class_Name"]=>
  string(7) "MyClass"
  ["property"]=>
  string(7) "myValue"
}
object(__PHP_Incomplete_Class)#4 (1) {
  ["__PHP_Incomplete_Class_Name"]=>
  string(16) "MyUndefinedClass"
}