php unserialize 实例,PHP ArrayIterator unserialize()用法及代码示例
ArrayIterator::unserialize()函數(shù)是PHP中的一個(gè)內(nèi)置函數(shù),用于反序列化序列化對(duì)象。
用法:
void ArrayIterator::unserialize( string $serialized )
參數(shù):此函數(shù)接受單個(gè)參數(shù)$serialized,該參數(shù)保存序列化數(shù)組迭代器對(duì)象。
返回值:此函數(shù)返回未序列化對(duì)象的序列化ArrayIterator對(duì)象。
以下示例程序旨在說明PHP中的ArrayIterator::unserialize()函數(shù):
程序1:
// 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);
?>
輸出:
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:
// 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);
?>
輸出:
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"
}
}
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