PHP SplObjectStorage unserialize()用法及代码示例

SplObjectStorage::unserialize()函数是PHP中的内置函数，用于从其序列化字符串表示形式反序列化存储。

用法:

void SplObjectStorage::unserialize( $serilize )

参数：该函数接受单个参数$serialize，该参数指定存储的字符串序列化。

返回值：该函数不返回任何值。

以下程序说明了PHP中的SplObjectStorage::unserialize()函数：

程序1:

<?php 
  
$obj1 = new StdClass; 
  
// Create an empty SplObjectStorage 
$gfg1 = new SplObjectStorage(); 
$gfg1[$obj1] = "Geeks"; 
  
// Use unserialize() function 
$gfg1->unserialize($gfg1->serialize()); 
print_r($gfg1); 
  
?>

输出：

SplObjectStorage Object
(
    [storage:SplObjectStorage:private] => Array
        (
            [00000000494fcd4d000000001f544823] => Array
                (
                    [obj] => stdClass Object
                        (
                        )

                    [inf] => Geeks
                )

            [00000000494fcd4f000000001f544823] => Array
                (
                    [obj] => stdClass Object
                        (
                        )

                    [inf] => Geeks
                )

        )

)

程序2:

<?php 
  
$obj1 = new StdClass; 
$obj2 = new StdClass; 
  
// Create an empty SplObjectStorage 
$gfg1 = new SplObjectStorage(); 
$gfg1[$obj1] = "Geeks"; 
  
// Create an empty SplObjectStorage 
$gfg2 = new SplObjectStorage(); 
$gfg2[$obj1] = "GFG"; 
$gfg2[$obj2] = "GeeksClasses"; 
  
// Use unserialize() function 
$gfg1->unserialize($gfg2->serialize()); 
var_dump(count($gfg1)); 
  
// Use unserialize() function 
$gfg2->unserialize($gfg1->serialize()); 
var_dump(count($gfg2)); 
?>

输出：

int(3)
int(5)

参考： https://www.php.net/manual/en/splobjectstorage.unserialize.php

相关用法

注：本文由纯净天空筛选整理自R_Raj大神的英文原创作品 PHP | SplObjectStorage unserialize() Function。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。