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PHP ArrayIterator unserialize()用法及代码示例


ArrayIterator::unserialize()函数是PHP中的一个内置函数,用于反序列化序列化对象。

用法:

void ArrayIterator::unserialize( string $serialized )

参数:此函数接受单个参数$serialized,该参数保存序列化数组迭代器对象。


返回值:此函数返回未序列化对象的序列化ArrayIterator对象。

以下示例程序旨在说明PHP中的ArrayIterator::unserialize()函数:

程序1:

<?php 
  
// Declare an ArrayIterator 
$arrItr = new ArrayIterator( 
    array('G', 'e', 'e', 'k', 's') 
); 
  
// Serialize the element 
$serialize = serialize($arrItr);  
  
// Display the output 
var_dump($serialize); 
  
// Unserialize the serialize element 
$unserialize = unserialize($serialize); 
  
// Display the result 
var_dump($unserialize); 
  
?>
输出:
string(107) "C:13:"ArrayIterator":81:{x:i:0;a:5:{i:0;s:1:"G";i:1;
s:1:"e";i:2;s:1:"e";i:3;s:1:"k";i:4;s:1:"s";};m:a:0:{}}"
object(ArrayIterator)#2 (1) {
  ["storage":"ArrayIterator":private]=>
  array(5) {
    [0]=>
    string(1) "G"
    [1]=>
    string(1) "e"
    [2]=>
    string(1) "e"
    [3]=>
    string(1) "k"
    [4]=>
    string(1) "s"
  }
}

程序2:

<?php 
     
// Declare an ArrayIterator 
$arrItr = new ArrayIterator( 
    array( 
        "a" => "Geeks", 
        "b" => "for", 
        "c" => "Geeks"
    ) 
); 
  
// Append some elements 
$arrItr->append("Computer");  
$arrItr->append("Science");  
$arrItr->append("Portal");  
      
// Serialize the element 
$serialize = serialize($arrItr);  
  
// Display the output 
var_dump($serialize); 
  
// Unserialize the element 
$unserialize = unserialize($serialize);  
  
// Display the output 
var_dump($unserialize); 
     
?>
输出:
string(160) "C:13:"ArrayIterator":133:{x:i:0;a:6:{s:1:"a";s:5:"Geeks";
s:1:"b";s:3:"for";s:1:"c";s:5:"Geeks";i:0;s:8:"Computer";i:1;
s:7:"Science";i:2;s:6:"Portal";};m:a:0:{}}"
object(ArrayIterator)#2 (1) {
  ["storage":"ArrayIterator":private]=>
  array(6) {
    ["a"]=>
    string(5) "Geeks"
    ["b"]=>
    string(3) "for"
    ["c"]=>
    string(5) "Geeks"
    [0]=>
    string(8) "Computer"
    [1]=>
    string(7) "Science"
    [2]=>
    string(6) "Portal"
  }
}

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



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注:本文由纯净天空筛选整理自jit_t大神的英文原创作品 PHP | ArrayIterator 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。